Bump node version to newest (20) and update corresponding dependencies

.dockerignore

@@ -1,3 +1,6 @@
 node_modules
 .env
-.git
+.git
+build
+test
+.nyc_output

.env.example

@@ -1,8 +1,7 @@
 NET_ID=1
-HTTP_RPC_URL=https://mainnet.infura.io
+HTTP_RPC_URL=https://api.securerpc.com/v1
-WS_RPC_URL=wss://mainnet.infura.io/ws/v3/
 # ORACLE_RPC_URL should always point to the mainnet
-ORACLE_RPC_URL=https://mainnet.infura.io
+ORACLE_RPC_URL=https://api.securerpc.com/v1
 REDIS_URL=redis://127.0.0.1:6379
 
 # DNS settings
@@ -12,13 +11,15 @@ APP_PORT=8000
 
 # without 0x prefix
 PRIVATE_KEY=
-# 0.05 means 0.05%
+# 0.1 means 0.1%, we recommend 0.1 for sidechains and 0.4 for mainnet
-REGULAR_TORNADO_WITHDRAW_FEE=0.05
+RELAYER_FEE=0.1
-MINING_SERVICE_FEE=0.05
+REWARD_ACCOUNT=0x...
-REWARD_ACCOUNT=
 CONFIRMATIONS=4
 
 # in GWEI
 MAX_GAS_PRICE=1000
-BASE_FEE_RESERVE_PERCENTAGE=25
+GAS_BUMP_PERCENTAGE=5
 AGGREGATOR=0x8cb1436F64a3c33aD17bb42F94e255c4c0E871b2
+# Telegram bot alerts
+TELEGRAM_NOTIFIER_BOT_TOKEN=
+TELEGRAM_NOTIFIER_CHAT_ID=

.eslintrc.json

@@ -1,45 +1,21 @@
 {
   "env": {
     "node": true,
-    "browser": true,
+    "commonjs": true,
-    "es6": true,
+    "es2020": true
-    "mocha": true
-  },
-  "extends": "eslint:recommended",
-  "globals": {
-    "Atomics": "readonly",
-    "SharedArrayBuffer": "readonly"
   },
+  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "prettier"],
+  "parser": "@typescript-eslint/parser",
   "parserOptions": {
-    "ecmaVersion": 2018
+    "ecmaVersion": 11
   },
+  "plugins": ["@typescript-eslint"],
   "rules": {
-    "indent": [
-      "error",
-      2,
-      {
-        "SwitchCase": 1
-      }
-    ],
     "linebreak-style": ["error", "unix"],
-    "quotes": [
+    "quotes": ["error", "single"],
-      "error",
+    "semi": ["error", "always"],
-      "single",
+    "no-useless-catch": "off",
-      {
+    "@typescript-eslint/no-var-requires": "off",
-        "avoidEscape": true
+    "@typescript-eslint/explicit-module-boundary-types": "off"
-      }
-    ],
-    "semi": ["error", "never"],
-    "object-curly-spacing": ["error", "always"],
-    "require-await": "error",
-    "comma-dangle": ["error", "only-multiline"],
-    "space-before-function-paren": [
-      "error",
-      {
-        "anonymous": "always",
-        "named": "never",
-        "asyncArrow": "always"
-      }
-    ]
   }
 }

.github/workflows/build.yml

@@ -14,9 +14,8 @@ jobs:
         uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 16
       - run: yarn install
-      - run: yarn test
       - run: yarn lint
       - name: Telegram Failure Notification
         uses: appleboy/telegram-action@master
@@ -26,7 +25,6 @@ jobs:
           format: markdown
           to: ${{ secrets.TELEGRAM_CHAT_ID }}
           token: ${{ secrets.TELEGRAM_BOT_TOKEN }}
-
   publish:
     runs-on: ubuntu-latest
     needs: build
@@ -51,7 +49,7 @@ jobs:
           dockerfile: Dockerfile
           repository: tornadocash/relayer
           tag_with_ref: true
-          tags: mining,candidate
+          tags: candidate
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_TOKEN }}
 
@@ -70,10 +68,9 @@ jobs:
           to: ${{ secrets.TELEGRAM_RELAYER_CHAT_ID }}
           token: ${{ secrets.TELEGRAM_BOT_TOKEN }}
           message: |
-            🚀 Published a new version of the relayer node service for mainnet to docker hub: `tornadocash/relayer:v${{ steps.vars.outputs.version }}` and `tornadocash/relayer:mining`.
+            🚀 Published a new version of the relayer node service to docker hub: `tornadocash/relayer:v${{ steps.vars.outputs.version }}` and `tornadocash/relayer`.
 
-            ❗️Please update your mainnet nodes ❗️
+            ❗️Please update your nodes ❗️
-            DO NOT TOUCH SIDECHAINS AND NOVA RELAYERS.
 
           debug: true
           format: markdown
@@ -84,10 +81,9 @@ jobs:
         uses: Ilshidur/action-discord@master
         with:
           args: |
-            🚀 Published a new version of the relayer node service for mainnet to docker hub: `tornadocash/relayer:v${{ steps.vars.outputs.version }}` and `tornadocash/relayer:mining`.
+            🚀 Published a new version of the relayer node service to docker hub: `tornadocash/relayer:v${{ steps.vars.outputs.version }}` and `tornadocash/relayer`.
 
-            ❗️Please update your mainnet nodes ❗️
+            ❗️Please update your nodes ❗️
-            DO NOT TOUCH SIDECHAINS AND NOVA RELAYERS.
 
       - name: Telegram Failure Notification
         uses: appleboy/telegram-action@master

.gitignore

@@ -6,3 +6,5 @@ node_modules/
 kovan.*
 dump.rdb
 .idea
+build
+.nyc_output

.npmrc

@@ -0,0 +1 @@
+@tornado:registry=https://git.tornado.ws/api/packages/tornado-packages/npm/

.nvmrc

@@ -0,0 +1 @@
+v20.3.0

.prettierignore

@@ -1 +0,0 @@
-keys/TreeUpdate.json

.prettierrc

@@ -1,7 +1,7 @@
 {
-  "semi": false,
+  "semi": true,
-  "arrowParens": "avoid",
+  "trailingComma": "all",
   "singleQuote": true,
-  "printWidth": 110,
+  "printWidth": 130,
-  "trailingComma": "all"
+  "tabWidth": 2
 }

Dockerfile

@@ -1,9 +1,28 @@
-FROM node:12
+FROM node:20-alpine as dev
+
+ENV NODE_ENV=development
+
+WORKDIR /usr/app
+
+COPY yarn.lock .
+COPY package.json .
+RUN apk update && apk add --no-cache g++ make python3 && rm -rf /var/cache/apk/*
+RUN yarn install
+COPY . ./
+
+RUN yarn build
+
+FROM node:20-alpine as prod
+ENV NODE_ENV=production
+
 WORKDIR /app
 
-COPY package.json yarn.lock ./
+RUN apk update && apk add --no-cache g++ make python3 && rm -rf /var/cache/apk/*
-RUN yarn && yarn cache clean --force
+
-COPY . .
+COPY --from=dev /usr/app/ /app
+COPY --from=dev /usr/app/package.json /app/
+COPY --from=dev /usr/app/yarn.lock /app/
+
+RUN yarn install && yarn cache clean -f
 
-EXPOSE 8000
 ENTRYPOINT ["yarn"]

README.md

@@ -1,35 +1,80 @@
-# Relayer for Tornado Cash [![Build Status](https://github.com/tornadocash/relayer/workflows/build/badge.svg)](https://github.com/tornadocash/relayer/actions) [![Docker Image Version (latest semver)](https://img.shields.io/docker/v/tornadocash/relayer?logo=docker&logoColor=%23FFFFFF&sort=semver)](https://hub.docker.com/repository/docker/tornadocash/relayer)
+# Relayer for Tornado Cash [![Build Status](https://github.com/tornadocash/relayer/workflows/build/badge.svg)](https://github.com/tornadocash/relayer/actions) ![Static Badge](https://img.shields.io/badge/version-6.0.0-blue?logo=docker)
 
-## Deploy with docker-compose
+__*Tornado Cash was sanctioned by the US Treasury on 08/08/2022, this makes it illegal for US citizens to interact with Tornado Cash and all of it's associated deployed smart contracts. Please understand the laws where you live and take all necessary steps to protect and anonymize yourself.__
 
-docker-compose.yml contains a stack that will automatically provision SSL certificates for your domain name and will add a https redirect to port 80.
+__*It is recommended to run your Relayer on a VPS instnace ([Virtual Private Server](https://njal.la/)). Ensure SSH configuration is enabled for security, you can find information about SSH keygen and management [here](https://www.ssh.com/academy/ssh/keygen).__
 
-1. Download [docker-compose.yml](/docker-compose.yml) and [.env.example](/.env.example)
+## Deploy with script and docker-compose
 
-```
+*The following instructions are for Ubuntu 22.10, other operating systems may vary.* 
-wget https://raw.githubusercontent.com/tornadocash/tornado-relayer/master/docker-compose.yml
+
-wget https://raw.githubusercontent.com/tornadocash/tornado-relayer/master/.env.example -O .env
+#### Installation:
+
+Just run in terminal:
+
+```bash
+curl -s https://git.tornado.ws/tornadocash/classic-relayer/raw/branch/v6/install.sh | bash
 ```
 
-2. Setup environment variables
+#### Configuring environments:
 
-   - set `NET_ID` (1 for mainnet, 5 for Goerli)
+1. Go to `tornado-relayer` folder on the server home directory
-   - set `HTTP_RPC_URL` rpc url for your ethereum node
+2. Check environment files:
-   - set `WS_RPC_URL` websocket url
-   - set `ORACLE_RPC_URL` - rpc url for mainnet node for fetching prices(always have to be on mainnet)
-   - set `PRIVATE_KEY` for your relayer address (without 0x prefix)
-   - set `VIRTUAL_HOST` and `LETSENCRYPT_HOST` to your domain and add DNS record pointing to your relayer ip address
-   - set `REGULAR_TORNADO_WITHDRAW_FEE` - fee in % that is used for tornado pool withdrawals
-   - set `MINING_SERVICE_FEE` - fee in % that is used for mining AP withdrawals
-   - set `REWARD_ACCOUNT` - eth address that is used to collect fees
-   - update `AGGREGATOR` if needed - Contract address of aggregator instance.
-   - update `CONFIRMATIONS` if needed - how many block confirmations to wait before processing an event. Not recommended to set less than 3
-   - update `MAX_GAS_PRICE` if needed - maximum value of gwei value for relayer's transaction
-   - update `BASE_FEE_RESERVE_PERCENTAGE` if needed - how much in % will the network baseFee increase
 
-     If you want to use more than 1 eth address for relaying transactions, please add as many `workers` as you want. For example, you can comment out `worker2` in docker-compose.yml file, but please use a different `PRIVATE_KEY` for each worker.
+​	By default each network is preconfigured the naming of `.env.<NETWORK>`
 
-3. Run `docker-compose up -d`
+- `.env.eth` for Ethereum Mainnet 
+- `.env.goerli` for Goerli testnet
+- `.env.bsc` for Binance Smart Chain
+- `.env.arb` for Arbitrum
+- `.env.op` for Optimism
+- `.env.gnosis` for Gnosis (xdai)
+- `.env.polygon` for Polygon (matic)
+- `.env.avax` for Avalanche C-Chain
+
+​	3. Configure (fill) environment files for those networks on which the relayer will be deployed:
+
+  - Set `PRIVATE_KEY` to your relayer address (remove the 0x from your private key) to each environment file
+
+    - *It is recommended not to reuse the same private keys for each network as a security measure*
+
+  - Set `VIRTUAL_HOST` and `LETSENCRYPT_HOST` a unique subndomain for every network to each environment file
+
+    - eg: `mainnet.example.com` for Ethereum, `binance.example.com` for Binance etc
+    - add a A wildcard record DNS record with the value assigned to your instance IP address to configure subdomains
+
+  - Set `RELAYER_FEE` to what you would like to charge as your fee (remember 0.3% is deducted from your staked relayer balance)
+
+  - Set `RPC_URL` to a non-censoring RPC (You can [run your own](https://github.com/feshchenkod/rpc-nodes), or use a [free option](https://chainnodes.org/))
+
+  - Set `ORACLE_RPC_URL` to an Ethereum native RPC endpoint
+
+  - Set `REWARD_ACCOUNT` - eth address that is used to collect fees
+
+  - Set `TELEGRAM_NOTIFIER_BOT_TOKEN` and `TELEGRAM_NOTIFIER_CHAT_ID` if your want get notify to telegram
+
+    
+
+  - Update `AGGREGATOR` if needed - Contract address of aggregator instance.
+
+  - Update `CONFIRMATIONS` if needed - how many block confirmations to wait before processing an event. Not recommended
+    to set less than 3
+
+  - Update `MAX_GAS_PRICE` if needed - maximum value of gwei value for relayer's transaction
+
+  - Update `GAS_BUMP_PERCENTAGE` if needed - how much in % will the network gas for transaction additionally increased
+
+    **NB!** Don't update these values if you not sure what you doing.
+
+
+
+#### Deployment:
+
+1. Build and deploy the docker source for the configured neworks specified via `--profile <NETWORK_SYMBOL>`, for example (if you run relayer only for Ethereum Mainnet, Binance Smart Chain and Arbitrum):
+
+  - `docker-compose --profile eth --profile bsc --profile arb up -d`
+
+2. Visit your domain addresses and check each `/status` endpoint to ensure there is no errors in the `status` fields
 
 ## Run locally
 
@@ -41,31 +86,52 @@ wget https://raw.githubusercontent.com/tornadocash/tornado-relayer/master/.env.e
 6. In order to execute withdraw request, you can run following command
 
 ```bash
-curl -X POST -H 'content-type:application/json' --data '<input data>' http://127.0.0.1:8000/relay
+curl -X POST -H 'content-type:application/json' --data '<input data>' http://127.0.0.1:8000/v1/tornadoWithdraw
+
 ```
 
-Relayer should return a transaction hash
+Relayer should return a job id in uuid v4 format.
 
 In that case you will need to add https termination yourself because browsers with default settings will prevent https
-tornado.cash UI from submitting your request over http connection
+Tornado Cash UI from submitting your request over http connection
 
 ## Run geth node
 
-It is strongly recommended that you use your own RPC node. Instruction on how to run full node with `geth` can be found [here](https://github.com/feshchenkod/rpc-nodes).
+It is strongly recommended that you use your own RPC node. Instruction on how to run full node with `geth` can be
+found [here](https://github.com/tornadocash/rpc-nodes).
 
 ## Monitoring
 
+### Basic
+
+For basic monitoring setup telegram bot and fill variables in .env file
+
+Alerts about:
+
+- Main relayer currency balance
+- Torn staked balance in relayer contract
+- Withdraw transactions send errors
+
+How to create bot: https://core.telegram.org/bots#3-how-do-i-create-a-bot
+
+How to get chat id: https://stackoverflow.com/questions/32423837/telegram-bot-how-to-get-a-group-chat-id/32572159#32572159
+
+### Advanced
+
 You can find the guide on how to install the Zabbix server in the [/monitoring/README.md](/monitoring/README.md).
 
-## Architecture
+## Compatible networks
+
+- Ethereum Mainnet (1)
+- Binance Smart Chain (56)
+- Polygon (Matic) Network (137)
+- Optimism (10)
+- Arbitrum One (42161)
+- Gnosis Chain (100)
+- Avalanche Mainnet (43114)
+- Ethereum Goerli (5)
+
 
-1. TreeWatcher module keeps track of Account Tree changes and automatically caches the actual state in Redis and emits `treeUpdate` event to redis pub/sub channel
-2. Server module is Express.js instance that accepts http requests
-3. Controller contains handlers for the Server endpoints. It validates input data and adds a Job to Queue.
-4. Queue module is used by Controller to put and get Job from queue (bull wrapper)
-5. Status module contains handler to get a Job status. It's used by UI for pull updates
-6. Validate contains validation logic for all endpoints
-7. Worker is the main module that gets a Job from queue and processes it
 
 Disclaimer:
 

abis/Aggregator.abi.json

@@ -2,107 +2,198 @@
   {
     "inputs": [
       {
-        "internalType": "bytes32[]",
+        "internalType": "contract MultiWrapper",
-        "name": "domains",
+        "name": "_multiWrapper",
-        "type": "bytes32[]"
+        "type": "address"
-      }
+      },
-    ],
-    "name": "bulkResolve",
-    "outputs": [
       {
-        "internalType": "address[]",
+        "internalType": "contract IOracle[]",
-        "name": "result",
+        "name": "existingOracles",
         "type": "address[]"
+      },
+      {
+        "internalType": "enum OffchainOracle.OracleType[]",
+        "name": "oracleTypes",
+        "type": "uint8[]"
+      },
+      {
+        "internalType": "contract IERC20[]",
+        "name": "existingConnectors",
+        "type": "address[]"
+      },
+      {
+        "internalType": "contract IERC20",
+        "name": "wBase",
+        "type": "address"
       }
     ],
     "stateMutability": "nonpayable",
+    "type": "constructor"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "internalType": "contract IERC20",
+        "name": "connector",
+        "type": "address"
+      }
+    ],
+    "name": "ConnectorAdded",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "internalType": "contract IERC20",
+        "name": "connector",
+        "type": "address"
+      }
+    ],
+    "name": "ConnectorRemoved",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "internalType": "contract MultiWrapper",
+        "name": "multiWrapper",
+        "type": "address"
+      }
+    ],
+    "name": "MultiWrapperUpdated",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "internalType": "contract IOracle",
+        "name": "oracle",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "enum OffchainOracle.OracleType",
+        "name": "oracleType",
+        "type": "uint8"
+      }
+    ],
+    "name": "OracleAdded",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "internalType": "contract IOracle",
+        "name": "oracle",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "enum OffchainOracle.OracleType",
+        "name": "oracleType",
+        "type": "uint8"
+      }
+    ],
+    "name": "OracleRemoved",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "previousOwner",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "newOwner",
+        "type": "address"
+      }
+    ],
+    "name": "OwnershipTransferred",
+    "type": "event"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "contract IERC20",
+        "name": "connector",
+        "type": "address"
+      }
+    ],
+    "name": "addConnector",
+    "outputs": [],
+    "stateMutability": "nonpayable",
     "type": "function"
   },
   {
     "inputs": [
       {
-        "internalType": "contract Governance",
+        "internalType": "contract IOracle",
-        "name": "governance",
+        "name": "oracle",
-        "type": "address"
-      }
-    ],
-    "name": "getAllProposals",
-    "outputs": [
-      {
-        "components": [
-          {
-            "internalType": "address",
-            "name": "proposer",
-            "type": "address"
-          },
-          {
-            "internalType": "address",
-            "name": "target",
-            "type": "address"
-          },
-          {
-            "internalType": "uint256",
-            "name": "startTime",
-            "type": "uint256"
-          },
-          {
-            "internalType": "uint256",
-            "name": "endTime",
-            "type": "uint256"
-          },
-          {
-            "internalType": "uint256",
-            "name": "forVotes",
-            "type": "uint256"
-          },
-          {
-            "internalType": "uint256",
-            "name": "againstVotes",
-            "type": "uint256"
-          },
-          {
-            "internalType": "bool",
-            "name": "executed",
-            "type": "bool"
-          },
-          {
-            "internalType": "bool",
-            "name": "extended",
-            "type": "bool"
-          },
-          {
-            "internalType": "enum Governance.ProposalState",
-            "name": "state",
-            "type": "uint8"
-          }
-        ],
-        "internalType": "struct GovernanceAggregator.Proposal[]",
-        "name": "proposals",
-        "type": "tuple[]"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      {
-        "internalType": "contract Governance",
-        "name": "governance",
         "type": "address"
       },
       {
-        "internalType": "address[]",
+        "internalType": "enum OffchainOracle.OracleType",
-        "name": "accs",
+        "name": "oracleKind",
+        "type": "uint8"
+      }
+    ],
+    "name": "addOracle",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "connectors",
+    "outputs": [
+      {
+        "internalType": "contract IERC20[]",
+        "name": "allConnectors",
         "type": "address[]"
       }
     ],
-    "name": "getGovernanceBalances",
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "contract IERC20",
+        "name": "srcToken",
+        "type": "address"
+      },
+      {
+        "internalType": "contract IERC20",
+        "name": "dstToken",
+        "type": "address"
+      },
+      {
+        "internalType": "bool",
+        "name": "useWrappers",
+        "type": "bool"
+      }
+    ],
+    "name": "getRate",
     "outputs": [
       {
-        "internalType": "uint256[]",
+        "internalType": "uint256",
-        "name": "amounts",
+        "name": "weightedRate",
-        "type": "uint256[]"
+        "type": "uint256"
       }
     ],
     "stateMutability": "view",
@@ -111,104 +202,61 @@
   {
     "inputs": [
       {
-        "internalType": "address[]",
+        "internalType": "contract IERC20",
-        "name": "fromTokens",
+        "name": "srcToken",
+        "type": "address"
+      },
+      {
+        "internalType": "bool",
+        "name": "useSrcWrappers",
+        "type": "bool"
+      }
+    ],
+    "name": "getRateToEth",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "weightedRate",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "multiWrapper",
+    "outputs": [
+      {
+        "internalType": "contract MultiWrapper",
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "oracles",
+    "outputs": [
+      {
+        "internalType": "contract IOracle[]",
+        "name": "allOracles",
         "type": "address[]"
       },
       {
-        "internalType": "uint256[]",
+        "internalType": "enum OffchainOracle.OracleType[]",
-        "name": "oneUnitAmounts",
+        "name": "oracleTypes",
-        "type": "uint256[]"
+        "type": "uint8[]"
-      }
-    ],
-    "name": "getPricesInETH",
-    "outputs": [
-      {
-        "internalType": "uint256[]",
-        "name": "prices",
-        "type": "uint256[]"
       }
     ],
     "stateMutability": "view",
     "type": "function"
   },
   {
-    "inputs": [
+    "inputs": [],
-      {
+    "name": "owner",
-        "internalType": "contract Governance",
-        "name": "governance",
-        "type": "address"
-      },
-      {
-        "internalType": "address",
-        "name": "account",
-        "type": "address"
-      }
-    ],
-    "name": "getUserData",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "balance",
-        "type": "uint256"
-      },
-      {
-        "internalType": "uint256",
-        "name": "latestProposalId",
-        "type": "uint256"
-      },
-      {
-        "internalType": "uint256",
-        "name": "latestProposalIdState",
-        "type": "uint256"
-      },
-      {
-        "internalType": "uint256",
-        "name": "timelock",
-        "type": "uint256"
-      },
-      {
-        "internalType": "address",
-        "name": "delegatee",
-        "type": "address"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      {
-        "internalType": "contract Miner",
-        "name": "miner",
-        "type": "address"
-      },
-      {
-        "internalType": "address[]",
-        "name": "instances",
-        "type": "address[]"
-      }
-    ],
-    "name": "minerRates",
-    "outputs": [
-      {
-        "internalType": "uint256[]",
-        "name": "_rates",
-        "type": "uint256[]"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      {
-        "internalType": "bytes32",
-        "name": "node",
-        "type": "bytes32"
-      }
-    ],
-    "name": "resolve",
     "outputs": [
       {
         "internalType": "address",
@@ -222,98 +270,65 @@
   {
     "inputs": [
       {
-        "internalType": "contract RewardSwap",
+        "internalType": "contract IERC20",
-        "name": "swap",
+        "name": "connector",
         "type": "address"
       }
     ],
-    "name": "swapState",
+    "name": "removeConnector",
-    "outputs": [
+    "outputs": [],
-      {
+    "stateMutability": "nonpayable",
-        "internalType": "uint256",
-        "name": "balance",
-        "type": "uint256"
-      },
-      {
-        "internalType": "uint256",
-        "name": "poolWeight",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
     "type": "function"
   },
   {
     "inputs": [
       {
-        "internalType": "contract Miner",
+        "internalType": "contract IOracle",
-        "name": "miner",
+        "name": "oracle",
         "type": "address"
       },
       {
-        "internalType": "address[]",
+        "internalType": "enum OffchainOracle.OracleType",
-        "name": "instances",
+        "name": "oracleKind",
-        "type": "address[]"
+        "type": "uint8"
-      },
-      {
-        "internalType": "contract RewardSwap",
-        "name": "swap",
-        "type": "address"
       }
     ],
-    "name": "miningData",
+    "name": "removeOracle",
-    "outputs": [
+    "outputs": [],
-      {
+    "stateMutability": "nonpayable",
-        "internalType": "uint256[]",
+    "type": "function"
-        "name": "_rates",
+  },
-        "type": "uint256[]"
+  {
-      },
+    "inputs": [],
-      {
+    "name": "renounceOwnership",
-        "internalType": "uint256",
+    "outputs": [],
-        "name": "balance",
+    "stateMutability": "nonpayable",
-        "type": "uint256"
-      },
-      {
-        "internalType": "uint256",
-        "name": "poolWeight",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
     "type": "function"
   },
   {
     "inputs": [
       {
-        "internalType": "address[]",
+        "internalType": "contract MultiWrapper",
-        "name": "fromTokens",
+        "name": "_multiWrapper",
-        "type": "address[]"
-      },
-      {
-        "internalType": "uint256[]",
-        "name": "oneUnitAmounts",
-        "type": "uint256[]"
-      },
-      {
-        "internalType": "contract RewardSwap",
-        "name": "swap",
         "type": "address"
       }
     ],
-    "name": "marketData",
+    "name": "setMultiWrapper",
-    "outputs": [
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
       {
-        "internalType": "uint256[]",
+        "internalType": "address",
-        "name": "prices",
+        "name": "newOwner",
-        "type": "uint256[]"
+        "type": "address"
-      },
-      {
-        "internalType": "uint256",
-        "name": "balance",
-        "type": "uint256"
       }
     ],
-    "stateMutability": "view",
+    "name": "transferOwnership",
+    "outputs": [],
+    "stateMutability": "nonpayable",
     "type": "function"
   }
 ]

abis/ERC20.abi.json

@@ -1,41 +1,98 @@
 [
   {
-    "inputs": [
+    "constant": true,
-      {
+    "inputs": [],
-        "internalType": "bytes32",
+    "name": "totalSupply",
-        "name": "_torn",
+    "outputs": [
-        "type": "bytes32"
-      },
-      {
-        "internalType": "bytes32",
-        "name": "_miner",
-        "type": "bytes32"
-      },
       {
         "internalType": "uint256",
-        "name": "_miningCap",
+        "name": "",
-        "type": "uint256"
-      },
-      {
-        "internalType": "uint256",
-        "name": "_initialLiquidity",
         "type": "uint256"
       }
     ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "_totalSupply",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "who",
+        "type": "address"
+      }
+    ],
+    "name": "balanceOf",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "to",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "value",
+        "type": "uint256"
+      }
+    ],
+    "name": "transfer",
+    "outputs": [],
+    "payable": false,
     "stateMutability": "nonpayable",
-    "type": "constructor"
+    "type": "function"
   },
   {
     "anonymous": false,
     "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "owner",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "spender",
+        "type": "address"
+      },
       {
         "indexed": false,
         "internalType": "uint256",
-        "name": "newWeight",
+        "name": "value",
         "type": "uint256"
       }
     ],
-    "name": "PoolWeightUpdated",
+    "name": "Approval",
     "type": "event"
   },
   {
@@ -44,188 +101,105 @@
       {
         "indexed": true,
         "internalType": "address",
-        "name": "recipient",
+        "name": "from",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "to",
         "type": "address"
       },
       {
         "indexed": false,
         "internalType": "uint256",
-        "name": "pTORN",
+        "name": "value",
-        "type": "uint256"
-      },
-      {
-        "indexed": false,
-        "internalType": "uint256",
-        "name": "TORN",
         "type": "uint256"
       }
     ],
-    "name": "Swap",
+    "name": "Transfer",
     "type": "event"
   },
   {
-    "inputs": [],
+    "constant": true,
-    "name": "DURATION",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [],
-    "name": "initialLiquidity",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [],
-    "name": "liquidity",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [],
-    "name": "miner",
-    "outputs": [
-      {
-        "internalType": "address",
-        "name": "",
-        "type": "address"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [],
-    "name": "poolWeight",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [
-      {
-        "internalType": "bytes32",
-        "name": "node",
-        "type": "bytes32"
-      }
-    ],
-    "name": "resolve",
-    "outputs": [
-      {
-        "internalType": "address",
-        "name": "",
-        "type": "address"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [],
-    "name": "startTimestamp",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [],
-    "name": "tokensSold",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [],
-    "name": "torn",
-    "outputs": [
-      {
-        "internalType": "contract IERC20",
-        "name": "",
-        "type": "address"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
     "inputs": [
       {
         "internalType": "address",
-        "name": "recipient",
+        "name": "owner",
+        "type": "address"
+      },
+      {
+        "internalType": "address",
+        "name": "spender",
+        "type": "address"
+      }
+    ],
+    "name": "allowance",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "from",
+        "type": "address"
+      },
+      {
+        "internalType": "address",
+        "name": "to",
         "type": "address"
       },
       {
         "internalType": "uint256",
-        "name": "amount",
+        "name": "value",
         "type": "uint256"
       }
     ],
-    "name": "swap",
+    "name": "transferFrom",
     "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "spender",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "value",
+        "type": "uint256"
+      }
+    ],
+    "name": "approve",
+    "outputs": [],
+    "payable": false,
     "stateMutability": "nonpayable",
     "type": "function"
   },
   {
     "inputs": [
       {
-        "internalType": "uint256",
+        "internalType": "address",
-        "name": "amount",
+        "name": "owner",
-        "type": "uint256"
+        "type": "address"
       }
     ],
-    "name": "getExpectedReturn",
+    "name": "nonces",
-    "outputs": [
-      {
-        "internalType": "uint256",
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "inputs": [],
-    "name": "tornVirtualBalance",
     "outputs": [
       {
         "internalType": "uint256",
@@ -238,13 +212,43 @@
   },
   {
     "inputs": [
+      {
+        "internalType": "address",
+        "name": "owner",
+        "type": "address"
+      },
+      {
+        "internalType": "address",
+        "name": "spender",
+        "type": "address"
+      },
       {
         "internalType": "uint256",
-        "name": "newWeight",
+        "name": "amount",
         "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "deadline",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint8",
+        "name": "v",
+        "type": "uint8"
+      },
+      {
+        "internalType": "bytes32",
+        "name": "r",
+        "type": "bytes32"
+      },
+      {
+        "internalType": "bytes32",
+        "name": "s",
+        "type": "bytes32"
       }
     ],
-    "name": "setPoolWeight",
+    "name": "permit",
     "outputs": [],
     "stateMutability": "nonpayable",
     "type": "function"

abis/Multicall.abi.json

@@ -0,0 +1,38 @@
+[
+  {
+    "inputs": [
+      {
+        "components": [
+          {
+            "internalType": "address",
+            "name": "to",
+            "type": "address"
+          },
+          {
+            "internalType": "bytes",
+            "name": "data",
+            "type": "bytes"
+          }
+        ],
+        "internalType": "struct MultiCall.Call[]",
+        "name": "calls",
+        "type": "tuple[]"
+      }
+    ],
+    "name": "multicall",
+    "outputs": [
+      {
+        "internalType": "bytes[]",
+        "name": "results",
+        "type": "bytes[]"
+      },
+      {
+        "internalType": "bool[]",
+        "name": "success",
+        "type": "bool[]"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  }
+]

abis/OffchainOracle.abi.json

@@ -1,10 +1,26 @@
 [
   {
     "inputs": [
-      { "internalType": "contract MultiWrapper", "name": "_multiWrapper", "type": "address" },
+      {
-      { "internalType": "contract IOracle[]", "name": "existingOracles", "type": "address[]" },
+        "internalType": "contract MultiWrapper",
-      { "internalType": "enum OffchainOracle.OracleType[]", "name": "oracleTypes", "type": "uint8[]" },
+        "name": "_multiWrapper",
-      { "internalType": "contract IERC20[]", "name": "existingConnectors", "type": "address[]" },
+        "type": "address"
+      },
+      {
+        "internalType": "contract IOracle[]",
+        "name": "existingOracles",
+        "type": "address[]"
+      },
+      {
+        "internalType": "enum OffchainOracle.OracleType[]",
+        "name": "oracleTypes",
+        "type": "uint8[]"
+      },
+      {
+        "internalType": "contract IERC20[]",
+        "name": "existingConnectors",
+        "type": "address[]"
+      },
       { "internalType": "contract IERC20", "name": "wBase", "type": "address" }
     ],
     "stateMutability": "nonpayable",
@@ -13,7 +29,12 @@
   {
     "anonymous": false,
     "inputs": [
-      { "indexed": false, "internalType": "contract IERC20", "name": "connector", "type": "address" }
+      {
+        "indexed": false,
+        "internalType": "contract IERC20",
+        "name": "connector",
+        "type": "address"
+      }
     ],
     "name": "ConnectorAdded",
     "type": "event"
@@ -21,7 +42,12 @@
   {
     "anonymous": false,
     "inputs": [
-      { "indexed": false, "internalType": "contract IERC20", "name": "connector", "type": "address" }
+      {
+        "indexed": false,
+        "internalType": "contract IERC20",
+        "name": "connector",
+        "type": "address"
+      }
     ],
     "name": "ConnectorRemoved",
     "type": "event"
@@ -29,7 +55,12 @@
   {
     "anonymous": false,
     "inputs": [
-      { "indexed": false, "internalType": "contract MultiWrapper", "name": "multiWrapper", "type": "address" }
+      {
+        "indexed": false,
+        "internalType": "contract MultiWrapper",
+        "name": "multiWrapper",
+        "type": "address"
+      }
     ],
     "name": "MultiWrapperUpdated",
     "type": "event"
@@ -37,7 +68,12 @@
   {
     "anonymous": false,
     "inputs": [
-      { "indexed": false, "internalType": "contract IOracle", "name": "oracle", "type": "address" },
+      {
+        "indexed": false,
+        "internalType": "contract IOracle",
+        "name": "oracle",
+        "type": "address"
+      },
       {
         "indexed": false,
         "internalType": "enum OffchainOracle.OracleType",
@@ -51,7 +87,12 @@
   {
     "anonymous": false,
     "inputs": [
-      { "indexed": false, "internalType": "contract IOracle", "name": "oracle", "type": "address" },
+      {
+        "indexed": false,
+        "internalType": "contract IOracle",
+        "name": "oracle",
+        "type": "address"
+      },
       {
         "indexed": false,
         "internalType": "enum OffchainOracle.OracleType",
@@ -65,14 +106,30 @@
   {
     "anonymous": false,
     "inputs": [
-      { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" },
+      {
-      { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" }
+        "indexed": true,
+        "internalType": "address",
+        "name": "previousOwner",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "newOwner",
+        "type": "address"
+      }
     ],
     "name": "OwnershipTransferred",
     "type": "event"
   },
   {
-    "inputs": [{ "internalType": "contract IERC20", "name": "connector", "type": "address" }],
+    "inputs": [
+      {
+        "internalType": "contract IERC20",
+        "name": "connector",
+        "type": "address"
+      }
+    ],
     "name": "addConnector",
     "outputs": [],
     "stateMutability": "nonpayable",
@@ -80,8 +137,16 @@
   },
   {
     "inputs": [
-      { "internalType": "contract IOracle", "name": "oracle", "type": "address" },
+      {
-      { "internalType": "enum OffchainOracle.OracleType", "name": "oracleKind", "type": "uint8" }
+        "internalType": "contract IOracle",
+        "name": "oracle",
+        "type": "address"
+      },
+      {
+        "internalType": "enum OffchainOracle.OracleType",
+        "name": "oracleKind",
+        "type": "uint8"
+      }
     ],
     "name": "addOracle",
     "outputs": [],
@@ -91,14 +156,28 @@
   {
     "inputs": [],
     "name": "connectors",
-    "outputs": [{ "internalType": "contract IERC20[]", "name": "allConnectors", "type": "address[]" }],
+    "outputs": [
+      {
+        "internalType": "contract IERC20[]",
+        "name": "allConnectors",
+        "type": "address[]"
+      }
+    ],
     "stateMutability": "view",
     "type": "function"
   },
   {
     "inputs": [
-      { "internalType": "contract IERC20", "name": "srcToken", "type": "address" },
+      {
-      { "internalType": "contract IERC20", "name": "dstToken", "type": "address" },
+        "internalType": "contract IERC20",
+        "name": "srcToken",
+        "type": "address"
+      },
+      {
+        "internalType": "contract IERC20",
+        "name": "dstToken",
+        "type": "address"
+      },
       { "internalType": "bool", "name": "useWrappers", "type": "bool" }
     ],
     "name": "getRate",
@@ -108,7 +187,11 @@
   },
   {
     "inputs": [
-      { "internalType": "contract IERC20", "name": "srcToken", "type": "address" },
+      {
+        "internalType": "contract IERC20",
+        "name": "srcToken",
+        "type": "address"
+      },
       { "internalType": "bool", "name": "useSrcWrappers", "type": "bool" }
     ],
     "name": "getRateToEth",
@@ -127,8 +210,16 @@
     "inputs": [],
     "name": "oracles",
     "outputs": [
-      { "internalType": "contract IOracle[]", "name": "allOracles", "type": "address[]" },
+      {
-      { "internalType": "enum OffchainOracle.OracleType[]", "name": "oracleTypes", "type": "uint8[]" }
+        "internalType": "contract IOracle[]",
+        "name": "allOracles",
+        "type": "address[]"
+      },
+      {
+        "internalType": "enum OffchainOracle.OracleType[]",
+        "name": "oracleTypes",
+        "type": "uint8[]"
+      }
     ],
     "stateMutability": "view",
     "type": "function"
@@ -141,7 +232,13 @@
     "type": "function"
   },
   {
-    "inputs": [{ "internalType": "contract IERC20", "name": "connector", "type": "address" }],
+    "inputs": [
+      {
+        "internalType": "contract IERC20",
+        "name": "connector",
+        "type": "address"
+      }
+    ],
     "name": "removeConnector",
     "outputs": [],
     "stateMutability": "nonpayable",
@@ -149,8 +246,16 @@
   },
   {
     "inputs": [
-      { "internalType": "contract IOracle", "name": "oracle", "type": "address" },
+      {
-      { "internalType": "enum OffchainOracle.OracleType", "name": "oracleKind", "type": "uint8" }
+        "internalType": "contract IOracle",
+        "name": "oracle",
+        "type": "address"
+      },
+      {
+        "internalType": "enum OffchainOracle.OracleType",
+        "name": "oracleKind",
+        "type": "uint8"
+      }
     ],
     "name": "removeOracle",
     "outputs": [],
@@ -165,7 +270,13 @@
     "type": "function"
   },
   {
-    "inputs": [{ "internalType": "contract MultiWrapper", "name": "_multiWrapper", "type": "address" }],
+    "inputs": [
+      {
+        "internalType": "contract MultiWrapper",
+        "name": "_multiWrapper",
+        "type": "address"
+      }
+    ],
     "name": "setMultiWrapper",
     "outputs": [],
     "stateMutability": "nonpayable",

abis/OvmGasPriceOracle.abi.json

@@ -0,0 +1,145 @@
+[
+  {
+    "inputs": [{ "internalType": "address", "name": "_owner", "type": "address" }],
+    "stateMutability": "nonpayable",
+    "type": "constructor"
+  },
+  {
+    "anonymous": false,
+    "inputs": [{ "indexed": false, "internalType": "uint256", "name": "", "type": "uint256" }],
+    "name": "DecimalsUpdated",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [{ "indexed": false, "internalType": "uint256", "name": "", "type": "uint256" }],
+    "name": "GasPriceUpdated",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [{ "indexed": false, "internalType": "uint256", "name": "", "type": "uint256" }],
+    "name": "L1BaseFeeUpdated",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [{ "indexed": false, "internalType": "uint256", "name": "", "type": "uint256" }],
+    "name": "OverheadUpdated",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" },
+      { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" }
+    ],
+    "name": "OwnershipTransferred",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [{ "indexed": false, "internalType": "uint256", "name": "", "type": "uint256" }],
+    "name": "ScalarUpdated",
+    "type": "event"
+  },
+  {
+    "inputs": [],
+    "name": "decimals",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "gasPrice",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "bytes", "name": "_data", "type": "bytes" }],
+    "name": "getL1Fee",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "bytes", "name": "_data", "type": "bytes" }],
+    "name": "getL1GasUsed",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "l1BaseFee",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "overhead",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "owner",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" },
+  {
+    "inputs": [],
+    "name": "scalar",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "uint256", "name": "_decimals", "type": "uint256" }],
+    "name": "setDecimals",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "uint256", "name": "_gasPrice", "type": "uint256" }],
+    "name": "setGasPrice",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "uint256", "name": "_baseFee", "type": "uint256" }],
+    "name": "setL1BaseFee",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "uint256", "name": "_overhead", "type": "uint256" }],
+    "name": "setOverhead",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "uint256", "name": "_scalar", "type": "uint256" }],
+    "name": "setScalar",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "newOwner", "type": "address" }],
+    "name": "transferOwnership",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  }
+]

abis/ProxyLight.abi.json

@@ -0,0 +1,105 @@
+[
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "internalType": "address",
+        "name": "sender",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "internalType": "bytes",
+        "name": "encryptedNote",
+        "type": "bytes"
+      }
+    ],
+    "name": "EncryptedNote",
+    "type": "event"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "bytes[]",
+        "name": "_encryptedNotes",
+        "type": "bytes[]"
+      }
+    ],
+    "name": "backupNotes",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "contract ITornadoInstance",
+        "name": "_tornado",
+        "type": "address"
+      },
+      {
+        "internalType": "bytes32",
+        "name": "_commitment",
+        "type": "bytes32"
+      },
+      {
+        "internalType": "bytes",
+        "name": "_encryptedNote",
+        "type": "bytes"
+      }
+    ],
+    "name": "deposit",
+    "outputs": [],
+    "stateMutability": "payable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "contract ITornadoInstance",
+        "name": "_tornado",
+        "type": "address"
+      },
+      {
+        "internalType": "bytes",
+        "name": "_proof",
+        "type": "bytes"
+      },
+      {
+        "internalType": "bytes32",
+        "name": "_root",
+        "type": "bytes32"
+      },
+      {
+        "internalType": "bytes32",
+        "name": "_nullifierHash",
+        "type": "bytes32"
+      },
+      {
+        "internalType": "address payable",
+        "name": "_recipient",
+        "type": "address"
+      },
+      {
+        "internalType": "address payable",
+        "name": "_relayer",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_fee",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_refund",
+        "type": "uint256"
+      }
+    ],
+    "name": "withdraw",
+    "outputs": [],
+    "stateMutability": "payable",
+    "type": "function"
+  }
+]

abis/RelayerRegistry.abi.json

@@ -0,0 +1,297 @@
+[
+  {
+    "inputs": [
+      { "internalType": "address", "name": "_torn", "type": "address" },
+      { "internalType": "address", "name": "_governance", "type": "address" },
+      { "internalType": "address", "name": "_ens", "type": "address" },
+      { "internalType": "address", "name": "_staking", "type": "address" },
+      { "internalType": "address", "name": "_feeManager", "type": "address" }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "constructor"
+  },
+  {
+    "anonymous": false,
+    "inputs": [{ "indexed": false, "internalType": "uint256", "name": "minStakeAmount", "type": "uint256" }],
+    "name": "MinimumStakeAmount",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [{ "indexed": false, "internalType": "address", "name": "relayer", "type": "address" }],
+    "name": "RelayerBalanceNullified",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": false, "internalType": "bytes32", "name": "relayer", "type": "bytes32" },
+      { "indexed": false, "internalType": "string", "name": "ensName", "type": "string" },
+      { "indexed": false, "internalType": "address", "name": "relayerAddress", "type": "address" },
+      { "indexed": false, "internalType": "uint256", "name": "stakedAmount", "type": "uint256" }
+    ],
+    "name": "RelayerRegistered",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [{ "indexed": false, "internalType": "address", "name": "tornadoRouter", "type": "address" }],
+    "name": "RouterRegistered",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": false, "internalType": "address", "name": "relayer", "type": "address" },
+      { "indexed": false, "internalType": "uint256", "name": "amountStakeAdded", "type": "uint256" }
+    ],
+    "name": "StakeAddedToRelayer",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": false, "internalType": "address", "name": "relayer", "type": "address" },
+      { "indexed": false, "internalType": "uint256", "name": "amountBurned", "type": "uint256" }
+    ],
+    "name": "StakeBurned",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": false, "internalType": "address", "name": "relayer", "type": "address" },
+      { "indexed": false, "internalType": "address", "name": "worker", "type": "address" }
+    ],
+    "name": "WorkerRegistered",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": false, "internalType": "address", "name": "relayer", "type": "address" },
+      { "indexed": false, "internalType": "address", "name": "worker", "type": "address" }
+    ],
+    "name": "WorkerUnregistered",
+    "type": "event"
+  },
+  {
+    "inputs": [{ "internalType": "bytes32[]", "name": "domains", "type": "bytes32[]" }],
+    "name": "bulkResolve",
+    "outputs": [{ "internalType": "address[]", "name": "result", "type": "address[]" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "sender", "type": "address" },
+      { "internalType": "address", "name": "relayer", "type": "address" },
+      { "internalType": "contract ITornadoInstance", "name": "pool", "type": "address" }
+    ],
+    "name": "burn",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "ens",
+    "outputs": [{ "internalType": "contract IENS", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "feeManager",
+    "outputs": [{ "internalType": "contract IFeeManager", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "relayer", "type": "address" }],
+    "name": "getRelayerBalance",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "relayer", "type": "address" }],
+    "name": "getRelayerEnsHash",
+    "outputs": [{ "internalType": "bytes32", "name": "", "type": "bytes32" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "governance",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "bytes32", "name": "_tornadoRouter", "type": "bytes32" }],
+    "name": "initialize",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "toResolve", "type": "address" }],
+    "name": "isRelayer",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "relayer", "type": "address" },
+      { "internalType": "address", "name": "toResolve", "type": "address" }
+    ],
+    "name": "isRelayerRegistered",
+    "outputs": [{ "internalType": "bool", "name": "", "type": "bool" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "minStakeAmount",
+    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "relayer", "type": "address" }],
+    "name": "nullifyBalance",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "string", "name": "ensName", "type": "string" },
+      { "internalType": "uint256", "name": "stake", "type": "uint256" },
+      { "internalType": "address[]", "name": "workersToRegister", "type": "address[]" }
+    ],
+    "name": "register",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "string", "name": "ensName", "type": "string" },
+      { "internalType": "uint256", "name": "stake", "type": "uint256" },
+      { "internalType": "address[]", "name": "workersToRegister", "type": "address[]" },
+      { "internalType": "address", "name": "relayer", "type": "address" },
+      { "internalType": "uint256", "name": "deadline", "type": "uint256" },
+      { "internalType": "uint8", "name": "v", "type": "uint8" },
+      { "internalType": "bytes32", "name": "r", "type": "bytes32" },
+      { "internalType": "bytes32", "name": "s", "type": "bytes32" }
+    ],
+    "name": "registerPermit",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "relayer", "type": "address" },
+      { "internalType": "address", "name": "worker", "type": "address" }
+    ],
+    "name": "registerWorker",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "name": "relayers",
+    "outputs": [
+      { "internalType": "uint256", "name": "balance", "type": "uint256" },
+      { "internalType": "bytes32", "name": "ensHash", "type": "bytes32" }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "bytes32", "name": "node", "type": "bytes32" }],
+    "name": "resolve",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "uint256", "name": "minAmount", "type": "uint256" }],
+    "name": "setMinStakeAmount",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "tornadoRouterAddress", "type": "address" }],
+    "name": "setTornadoRouter",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "relayer", "type": "address" },
+      { "internalType": "uint256", "name": "stake", "type": "uint256" }
+    ],
+    "name": "stakeToRelayer",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      { "internalType": "address", "name": "relayer", "type": "address" },
+      { "internalType": "uint256", "name": "stake", "type": "uint256" },
+      { "internalType": "address", "name": "staker", "type": "address" },
+      { "internalType": "uint256", "name": "deadline", "type": "uint256" },
+      { "internalType": "uint8", "name": "v", "type": "uint8" },
+      { "internalType": "bytes32", "name": "r", "type": "bytes32" },
+      { "internalType": "bytes32", "name": "s", "type": "bytes32" }
+    ],
+    "name": "stakeToRelayerPermit",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "staking",
+    "outputs": [{ "internalType": "contract TornadoStakingRewards", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "torn",
+    "outputs": [{ "internalType": "contract TORN", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "tornadoRouter",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "worker", "type": "address" }],
+    "name": "unregisterWorker",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "name": "workers",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "stateMutability": "view",
+    "type": "function"
+  }
+]

app.js

@@ -1 +0,0 @@
-module.exports = require('./src/index')

docker-compose.test.yml

@@ -1,62 +0,0 @@
-version: '2'
-
-# ssh-agent && ssh-add -K ~/.ssh/id_rsa
-# DOCKER_BUILDKIT=1 docker build --ssh default -t tornadocash/relayer .
-services:
-  server:
-    image: tornadocash/relayer
-    restart: always
-    command: server
-    env_file: .env
-    ports:
-      - 8000:8000
-    environment:
-      REDIS_URL: redis://redis/0
-      nginx_proxy_read_timeout: 600
-    depends_on: [redis]
-
-  treeWatcher:
-    image: tornadocash/relayer
-    restart: always
-    command: treeWatcher
-    env_file: .env
-    environment:
-      REDIS_URL: redis://redis/0
-    depends_on: [redis]
-
-  priceWatcher:
-    image: tornadocash/relayer
-    restart: always
-    command: priceWatcher
-    env_file: .env
-    environment:
-      REDIS_URL: redis://redis/0
-    depends_on: [redis]
-
-  worker1:
-    image: tornadocash/relayer
-    restart: always
-    command: worker
-    env_file: .env
-    environment:
-      REDIS_URL: redis://redis/0
-    depends_on: [redis]
-
-  #  worker2:
-  #    image: tornadocash/relayer
-  #    restart: always
-  #    command: worker
-  #    env_file: .env
-  #    environment:
-  #      PRIVATE_KEY: qwe
-  #      REDIS_URL: redis://redis/0
-
-  redis:
-    image: redis
-    restart: always
-    command: [redis-server, --appendonly, 'yes']
-    volumes:
-      - redis:/data
-
-volumes:
-  redis:

docker-compose.yml

@@ -1,59 +1,95 @@
 version: '2'
 
 services:
-  server:
+  redis:
-    image: tornadocash/relayer:mining
+    image: redis
+    restart: always
+    command: [redis-server, --appendonly, 'yes']
+    volumes:
+      - redis:/data
+    ports:
+      - '127.0.0.1:6379:6379'
+
+  nginx:
+    image: nginx:alpine
+    container_name: nginx
+    restart: always
+    ports:
+      - 80:80
+      - 443:443
+    volumes:
+      - conf:/etc/nginx/conf.d
+      - vhost:/etc/nginx/vhost.d
+      - html:/usr/share/nginx/html
+      - certs:/etc/nginx/certs
+    logging:
+      driver: none
+
+  dockergen:
+    image: poma/docker-gen
+    container_name: dockergen
+    restart: always
+    command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
+    volumes_from:
+      - nginx
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+
+  letsencrypt:
+    image: jrcs/letsencrypt-nginx-proxy-companion
+    container_name: letsencrypt
+    restart: always
+    environment:
+      NGINX_DOCKER_GEN_CONTAINER: dockergen
+    volumes_from:
+      - nginx
+      - dockergen
+
+  # ---------------------- ETH Mainnet ----------------------- #
+
+  eth-server:
+    image: tornadocash/relayer:v6
+    profiles: ['eth']
     restart: always
     command: server
-    env_file: .env
+    env_file: .env.eth
     environment:
+      NET_ID: 1
       REDIS_URL: redis://redis/0
       nginx_proxy_read_timeout: 600
     depends_on: [redis]
 
-  treeWatcher:
+  eth-healthWorker:
-    image: tornadocash/relayer:mining
+    image: tornadocash/relayer:v6
+    profiles: ['eth']
     restart: always
-    command: treeWatcher
+    command: healthWorker
-    env_file: .env
+    env_file: .env.eth
     environment:
+      NET_ID: 1
       REDIS_URL: redis://redis/0
-    depends_on: [redis]
+    depends_on: [redis, eth-server]
 
-  priceWatcher:
+  eth-txWorker1:
-    image: tornadocash/relayer:mining
+    image: tornadocash/relayer:v6
+    profiles: ['eth']
     restart: always
-    command: priceWatcher
+    command: txWorker
-    env_file: .env
+    env_file: .env.eth
     environment:
+      NET_ID: 1
       REDIS_URL: redis://redis/0
-    depends_on: [redis]
+    depends_on: [redis, eth-server]
 
-  healthWatcher:
+  # # This is additional txWorker for ethereum mainnet
-    image: tornadocash/relayer:mining
+  # # So you can process transactions from multiple addresses, but before it you need to set up those addresses as txWorkers
-    restart: always
+  #  eth-txWorker2:
-    command: healthWatcher
+  #    image: tornadocash/relayer:v6
-    env_file: .env
+  #    profiles: [ 'eth' ]
-    environment:
-      REDIS_URL: redis://redis/0
-    depends_on: [redis]
-
-  worker1:
-    image: tornadocash/relayer:mining
-    restart: always
-    command: worker
-    env_file: .env
-    environment:
-      REDIS_URL: redis://redis/0
-    depends_on: [redis]
-
-  #  worker2:
-  #    image: tornadocash/relayer:mining
   #    restart: always
-  #    command: worker
+  #    command: txWorker
-  #    env_file: .env
+  #    env_file: .env2.eth
   #    environment:
-  #      PRIVATE_KEY: qwe
   #      REDIS_URL: redis://redis/0
 
   #  # this container will proxy *.onion domain to the server container
@@ -104,47 +140,272 @@ services:
   #      RPC_URL: https://mainnet.infura.io
   #      BLOCK_EXPLORER: etherscan.io
 
-  redis:
+  # -------------------------------------------------- #
-    image: redis
-    restart: always
-    command: [redis-server, --appendonly, 'yes']
-    volumes:
-      - redis:/data
 
-  nginx:
+  # ---------------------- BSC (Binance Smart Chain) ----------------------- #
-    image: nginx:alpine
-    container_name: nginx
-    restart: always
-    ports:
-      - 80:80
-      - 443:443
-    volumes:
-      - conf:/etc/nginx/conf.d
-      - vhost:/etc/nginx/vhost.d
-      - html:/usr/share/nginx/html
-      - certs:/etc/nginx/certs
-    logging:
-      driver: none
 
-  dockergen:
+  bsc-server:
-    image: poma/docker-gen
+    image: tornadocash/relayer:v6
-    container_name: dockergen
+    profiles: ['bsc']
-    restart: always
-    command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
-    volumes_from:
-      - nginx
-    volumes:
-      - /var/run/docker.sock:/var/run/docker.sock:ro
-
-  letsencrypt:
-    image: jrcs/letsencrypt-nginx-proxy-companion
-    container_name: letsencrypt
     restart: always
+    command: server
+    env_file: .env.bsc
     environment:
-      NGINX_DOCKER_GEN_CONTAINER: dockergen
+      NET_ID: 56
-    volumes_from:
+      REDIS_URL: redis://redis/1
-      - nginx
+      nginx_proxy_read_timeout: 600
-      - dockergen
+    depends_on: [redis]
+
+  bsc-healthWorker:
+    image: tornadocash/relayer:v6
+    profiles: ['bsc']
+    restart: always
+    command: healthWorker
+    env_file: .env.bsc
+    environment:
+      NET_ID: 56
+      REDIS_URL: redis://redis/1
+    depends_on: [redis, bsc-server]
+
+  bsc-txWorker1:
+    image: tornadocash/relayer:v6
+    profiles: ['bsc']
+    restart: always
+    command: txWorker
+    env_file: .env.bsc
+    environment:
+      NET_ID: 56
+      REDIS_URL: redis://redis/1
+    depends_on: [redis, bsc-server]
+
+  # -------------------------------------------------- #
+
+  # ---------------------- Polygon (MATIC) --------------------- #
+
+  polygon-server:
+    image: tornadocash/relayer:v6
+    profiles: ['polygon']
+    restart: always
+    command: server
+    env_file: .env.polygon
+    environment:
+      NET_ID: 137
+      REDIS_URL: redis://redis/2
+      nginx_proxy_read_timeout: 600
+    depends_on: [redis]
+
+  polygon-healthWorker:
+    image: tornadocash/relayer:v6
+    profiles: ['polygon']
+    restart: always
+    command: healthWorker
+    env_file: .env.polygon
+    environment:
+      NET_ID: 137
+      REDIS_URL: redis://redis/2
+    depends_on: [redis, polygon-server]
+
+  polygon-txWorker1:
+    image: tornadocash/relayer:v6
+    profiles: ['polygon']
+    restart: always
+    command: txWorker
+    env_file: .env.polygon
+    environment:
+      NET_ID: 137
+      REDIS_URL: redis://redis/2
+    depends_on: [redis, polygon-server]
+
+  # -------------------------------------------------- #
+
+  # ---------------------- Gnosis (XDAI) ---------------------- #
+
+  gnosis-server:
+    image: tornadocash/relayer:v6
+    profiles: ['gnosis']
+    restart: always
+    command: server
+    env_file: .env.gnosis
+    environment:
+      NET_ID: 100
+      REDIS_URL: redis://redis/3
+      nginx_proxy_read_timeout: 600
+    depends_on: [redis]
+
+  gnosis-healthWorker:
+    image: tornadocash/relayer:v6
+    profiles: ['gnosis']
+    restart: always
+    command: healthWorker
+    env_file: .env.gnosis
+    environment:
+      NET_ID: 100
+      REDIS_URL: redis://redis/3
+    depends_on: [redis, gnosis-server]
+
+  gnosis-txWorker1:
+    image: tornadocash/relayer:v6
+    profiles: ['gnosis']
+    restart: always
+    command: txWorker
+    env_file: .env.gnosis
+    environment:
+      NET_ID: 100
+      REDIS_URL: redis://redis/3
+    depends_on: [redis, gnosis-server]
+
+  # -------------------------------------------------- #
+
+  # ---------------------- AVAX ---------------------- #
+
+  avax-server:
+    image: tornadocash/relayer:v6
+    profiles: ['avax']
+    restart: always
+    command: server
+    env_file: .env.avax
+    environment:
+      NET_ID: 43114
+      REDIS_URL: redis://redis/4
+      nginx_proxy_read_timeout: 600
+    depends_on: [redis]
+
+  avax-healthWorker:
+    image: tornadocash/relayer:v6
+    profiles: ['avax']
+    restart: always
+    command: healthWorker
+    env_file: .env.avax
+    environment:
+      NET_ID: 43114
+      REDIS_URL: redis://redis/4
+    depends_on: [redis, avax-server]
+
+  avax-txWorker1:
+    image: tornadocash/relayer:v6
+    profiles: ['avax']
+    restart: always
+    command: txWorker
+    env_file: .env.avax
+    environment:
+      NET_ID: 43114
+      REDIS_URL: redis://redis/4
+    depends_on: [redis, avax-server]
+
+  # -------------------------------------------------- #
+
+  # ---------------------- OP ------------------------ #
+
+  op-server:
+    image: tornadocash/relayer:v6
+    profiles: ['op']
+    restart: always
+    command: server
+    env_file: .env.op
+    environment:
+      NET_ID: 10
+      REDIS_URL: redis://redis/5
+      nginx_proxy_read_timeout: 600
+    depends_on: [redis]
+
+  op-healthWorker:
+    image: tornadocash/relayer:v6
+    profiles: ['op']
+    restart: always
+    command: healthWorker
+    env_file: .env.op
+    environment:
+      NET_ID: 10
+      REDIS_URL: redis://redis/5
+    depends_on: [redis, op-server]
+
+  op-txWorker1:
+    image: tornadocash/relayer:v6
+    profiles: ['op']
+    restart: always
+    command: txWorker
+    env_file: .env.op
+    environment:
+      NET_ID: 10
+      REDIS_URL: redis://redis/5
+    depends_on: [redis, op-server]
+
+  # -------------------------------------------------- #
+
+  # ---------------------- Arbitrum ----------------------- #
+
+  arb-server:
+    image: tornadocash/relayer:v6
+    profiles: ['arb']
+    restart: always
+    command: server
+    env_file: .env.arb
+    environment:
+      NET_ID: 42161
+      REDIS_URL: redis://redis/6
+      nginx_proxy_read_timeout: 600
+    depends_on: [redis]
+
+  arb-healthWorker:
+    image: tornadocash/relayer:v6
+    profiles: ['arb']
+    restart: always
+    command: healthWorker
+    env_file: .env.arb
+    environment:
+      NET_ID: 42161
+      REDIS_URL: redis://redis/6
+    depends_on: [redis, arb-server]
+
+  arb-txWorker1:
+    image: tornadocash/relayer:v6
+    profiles: ['arb']
+    restart: always
+    command: txWorker
+    env_file: .env.arb
+    environment:
+      NET_ID: 42161
+      REDIS_URL: redis://redis/6
+    depends_on: [redis, arb-server]
+
+  # -------------------------------------------------- #
+
+  # ---------------------- Goerli (Ethereum Testnet) ---------------------- #
+
+  goerli-server:
+    image: tornadocash/relayer:v6
+    profiles: ['geth']
+    restart: always
+    command: server
+    env_file: .env.goerli
+    environment:
+      NET_ID: 5
+      REDIS_URL: redis://redis/7
+      nginx_proxy_read_timeout: 600
+    depends_on: [redis]
+
+  goerli-healthWorker:
+    image: tornadocash/relayer:v6
+    profiles: ['goerli']
+    restart: always
+    command: healthWorker
+    env_file: .env.goerli
+    environment:
+      NET_ID: 5
+      REDIS_URL: redis://redis/7
+    depends_on: [redis, goerli-server]
+
+  goerli-txWorker1:
+    image: tornadocash/relayer:v6
+    profiles: ['goerli']
+    restart: always
+    command: txWorker
+    env_file: .env.goerli
+    environment:
+      NET_ID: 5
+      REDIS_URL: redis://redis/7
+    depends_on: [redis, goerli-server]
+  # -------------------------------------------------- #
 
 volumes:
   conf:

install.sh

@@ -0,0 +1,110 @@
+#!/bin/bash
+# Script must be running from root
+if [ "$EUID" -ne 0 ];
+  then echo "Please run as root";
+  exit 1;
+fi;
+
+relayer_soft_git_repo="https://git.tornado.ws/tornadocash/classic-relayer";
+
+user_home_dir=$(eval echo ~$USER);
+relayer_folder="$user_home_dir/tornado-relayer";
+script_log_file="/tmp/tornado-classic-relayer-installation.log"
+if [ -f $script_log_file ]; then rm $script_log_file; fi;
+
+function echo_log_err(){
+  echo $1 1>&2;
+  echo -e "$1\n" &>> $script_log_file;
+}
+
+function echo_log_err_and_exit(){
+  echo_log_err "$1";
+  exit 1;
+}
+
+function is_package_installed(){
+  if [ $(dpkg-query -W -f='${Status}' $1 2>/dev/null | grep -c "ok installed") -eq 0 ]; then return 1; else return 0; fi;
+}
+
+function install_requred_packages(){
+  apt update &>> $script_log_file;
+
+  requred_packages=("curl" "git-all" "ufw" "nginx");
+  local package;
+  for package in ${requred_packages[@]}; do
+    if ! is_package_installed $package; then
+      # Kill apache process, because Debian configuring nginx package  right during installation
+      if [ $package = "nginx" ]; then systemctl stop apache2; fi; 
+      apt install --yes --force-yes  -o DPkg::Options::="--force-confold" $package &>> $script_log_file;
+      if ! is_package_installed $package; then
+        echo_log_err_and_exit "Error: cannot install \"$package\" package";
+      fi;
+    fi;
+  done;
+
+  echo -e "\nAll required packages installed successfully";
+}
+
+function install_node(){
+  curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash;
+  . ~/.nvm/nvm.sh;
+  . ~/.profile;
+  . ~/.bashrc;
+  nvm install 20.3.0;
+}
+
+function install_relayer_repo(){
+    git clone $relayer_soft_git_repo -b v6 $relayer_folder
+}
+
+function install_docker_utilities(){
+  local kernel_name=$(uname -s);
+  local processor_type=$(uname -m);
+
+  curl -SL https://github.com/docker/compose/releases/download/v2.16.0/docker-compose-$kernel_name-$processor_type -o /usr/local/bin/docker-compose;
+  chmod +x /usr/local/bin/docker-compose;
+
+  curl -s https://get.docker.com | bash;
+}
+
+function configure_firewall(){
+  ufw allow https/tcp;
+  ufw allow http/tcp;
+  ufw insert 1 allow OpenSSH;
+  echo "y" | ufw enable;
+}
+
+function configure_nginx_reverse_proxy(){
+  systemctl stop apache2;
+
+  cp $relayer_folder/tornado.conf /etc/nginx/sites-available/default;
+  echo "stream { map_hash_bucket_size 128; map_hash_max_size 128; include /etc/nginx/conf.d/streams/*.conf; }" >> /etc/nginx/nginx.conf;
+  mkdir /etc/nginx/conf.d/streams;
+  cp $relayer_folder/tornado-stream.conf /etc/nginx/conf.d/streams/tornado-stream.conf;
+
+  systemctl restart nginx;
+  systemctl stop nginx;
+}
+
+function build_relayer_docker_container(){
+    cd $relayer_folder && npm run build:docker;
+}
+
+function prepare_environments(){
+    tee $relayer_folder/.env.bsc $relayer_folder/.env.arb $relayer_folder/.env.goerli $relayer_folder/.env.eth $relayer_folder/.env.polygon $relayer_folder/.env.op \
+        $relayer_folder/.env.avax $relayer_folder/.env.gnosis < $relayer_folder/.env.example > /dev/null;
+}
+
+function main(){
+  install_requred_packages;
+  install_node;
+  install_relayer_repo;
+  configure_firewall;
+  configure_nginx_reverse_proxy;
+  install_docker_utilities;
+  build_relayer_docker_container;
+  prepare_environments;
+  cd $relayer_folder;
+}
+
+main;

package.json

@@ -1,48 +1,67 @@
 {
-  "name": "relay",
+  "name": "classic-relay",
-  "version": "4.1.3",
+  "version": "6.0.0",
   "description": "Relayer for Tornado.cash privacy solution. https://tornado.cash",
   "scripts": {
-    "server": "node src/server.js",
+    "start": "yarn build && docker-compose up -d redis && concurrently \"yarn server\" \"yarn txWorker\" \"yarn healthWorker\"",
-    "worker": "node src/worker",
+    "server": "node build/src/app/index.js",
-    "treeWatcher": "node src/treeWatcher",
+    "txWorker": "node build/src/txWorker.js",
-    "priceWatcher": "node src/priceWatcher",
+    "healthWorker": "node build/src/healthWorker.js",
-    "healthWatcher": "node src/healthWatcher",
+    "dev": "docker-compose up -d redis && concurrently \"yarn dev:server\" \"yarn dev:txWorker\" \"yarn dev:healthWorker\"",
-    "eslint": "eslint --ext .js --ignore-path .gitignore .",
+    "dev:server": "nodemon --watch './src/**/*.ts' --exec ts-node src/app/index.ts",
-    "prettier:check": "npx prettier --check . --config .prettierrc",
+    "dev:healthWorker": "nodemon --watch './src/**/*.ts' --exec ts-node src/healthWorker.ts",
-    "prettier:fix": "npx prettier --write . --config .prettierrc",
+    "dev:txWorker": "nodemon --watch './src/**/*.ts' --exec ts-node src/txWorker.ts",
-    "lint": "yarn eslint && yarn prettier:check",
+    "build": "tsc",
-    "test": "mocha",
+    "build:abi": "yarn typechain --target ethers-v5  --out-dir src/contracts ./abis/*.abi.json",
-    "start": "yarn server & yarn priceWatcher & yarn treeWatcher & yarn worker & yarn healthWatcher"
+    "build:docker": "docker build -t tornadocash/relayer:v6 .",
+    "test": "tap --node-arg=--require=ts-node/register --no-check-coverage",
+    "eslint": "eslint --ext .ts --ignore-path .gitignore .",
+    "prettier:check": "npx prettier --check . --config .prettierrc --ignore-path .gitignore",
+    "prettier:fix": "npx prettier --write . --config .prettierrc --ignore-path .gitignore",
+    "lint": "yarn eslint && yarn prettier:check"
   },
   "author": "tornado.cash",
   "license": "MIT",
   "dependencies": {
-    "ajv": "^6.12.5",
+    "@fastify/cors": "^8.0.0",
-    "async-mutex": "^0.2.4",
+    "@fastify/helmet": "^9.1.0",
-    "bull": "^3.12.1",
+    "@fastify/sensible": "^5.1.0",
-    "circomlib": "git+https://github.com/tornadocash/circomlib.git#3b492f9801573eebcfe1b6c584afe8a3beecf2b4",
+    "@tornado/gas-price-oracle": "^0.5.3",
+    "ajv": "^8.11.0",
+    "bullmq": "^1.80.6",
+    "compare-versions": "^4.1.3",
+    "concurrently": "^8.2.0",
     "dotenv": "^8.2.0",
-    "eth-ens-namehash": "^2.0.8",
+    "ethers": "^5.6.4",
-    "express": "^4.17.1",
+    "fastify": "^4.2.0",
-    "fixed-merkle-tree": "^0.4.0",
+    "ioredis": "^5.0.6",
-    "gas-price-oracle": "^0.3.5",
+    "json-schema-to-ts": "^2.2.0",
-    "ioredis": "^4.14.1",
+    "node-fetch": "2",
-    "node-fetch": "^2.6.7",
+    "reflect-metadata": "^0.1.13",
-    "torn-token": "1.0.6",
+    "telegraf": "^4.12.3-canary.1",
-    "tornado-anonymity-mining": "^2.1.2",
+    "torn-token": "^1.0.8",
-    "tx-manager": "^0.4.1",
+    "tsyringe": "^4.8.0",
-    "uuid": "^8.3.0",
+    "tx-manager": "^0.4.9",
-    "web3": "^1.3.0",
+    "uuid": "^8.3.0"
-    "web3-core-promievent": "^1.3.0",
-    "web3-utils": "^1.2.2"
   },
   "devDependencies": {
+    "@typechain/ethers-v5": "^11.0.0",
+    "@types/ioredis": "^4.28.10",
+    "@types/node": "^20.4.1",
+    "@types/tap": "^15.0.7",
+    "@types/uuid": "^8.3.4",
+    "@typescript-eslint/eslint-plugin": "^5.20.0",
+    "@typescript-eslint/parser": "^5.20.0",
     "chai": "^4.2.0",
-    "eslint": "^6.6.0",
+    "eslint": "^8.19.0",
-    "eslint-config-prettier": "^6.12.0",
+    "eslint-config-prettier": "^8.5.0",
-    "eslint-plugin-prettier": "^3.1.4",
+    "mocha": "^10.0.0",
-    "mocha": "^8.1.3",
+    "nodemon": "^2.0.19",
-    "prettier": "^2.1.2"
+    "pino-pretty": "^8.1.0",
+    "prettier": "^2.7.1",
+    "tap": "^16.3.0",
+    "ts-node": "^10.7.0",
+    "typechain": "^8.2.0",
+    "typescript": "^4.7.4"
   }
 }

src/app/index.ts

@@ -0,0 +1,24 @@
+import 'reflect-metadata';
+import createServer from './server';
+import { utils } from 'ethers';
+import { port, relayerVersion, rewardAccount } from '../config';
+import { configService, getJobService, getNotifierService } from '../services';
+
+if (!utils.isAddress(rewardAccount)) {
+  throw new Error('No REWARD_ACCOUNT specified');
+}
+const server = createServer();
+server.listen({ port, host: '0.0.0.0' }, async (err, address) => {
+  if (err) throw err;
+  await configService.init();
+  await configService.clearRedisState();
+  await getJobService().setupRepeatableJobs();
+  await getNotifierService().subscribe();
+
+  console.log(`Relayer ${relayerVersion} started on port ${address}`);
+});
+
+process.on('uncaughtException', (e) => {
+  console.log('uncaughtException', e);
+  process.exit(1);
+});

src/app/plugins/validator.ts

@@ -0,0 +1,52 @@
+import Ajv from 'ajv';
+import fp from 'fastify-plugin';
+import { rewardAccount } from '../../config';
+import { getAddress, isAddress } from 'ethers/lib/utils';
+import { configService } from '../../services';
+import addFormats from 'ajv-formats';
+
+export default fp(async (server) => {
+  const ajv = new Ajv();
+  addFormats(ajv);
+  ajv.addKeyword({
+    keyword: 'isAddress',
+    validate: (schema, data) => {
+      try {
+        return isAddress(data);
+      } catch (e) {
+        return false;
+      }
+    },
+    errors: true,
+  });
+
+  ajv.addKeyword({
+    keyword: 'isKnownContract',
+    validate: (schema, data) => {
+      try {
+        return !!configService.getInstance(data);
+      } catch (e) {
+        return false;
+      }
+    },
+    errors: true,
+  });
+
+  ajv.addKeyword({
+    keyword: 'isFeeRecipient',
+    validate: (schema, data) => {
+      try {
+        return getAddress(rewardAccount) === getAddress(data);
+      } catch (e) {
+        return false;
+      }
+    },
+    errors: true,
+  });
+
+  server.setValidatorCompiler(({ schema }) => {
+    return ajv.compile(schema);
+  });
+  console.log('validator plugin registered');
+  return Promise.resolve();
+});

src/app/routes.ts

@@ -0,0 +1,55 @@
+import { FastifyInstance } from 'fastify';
+import { jobsSchema, statusSchema, withdrawSchema } from './schema';
+import { relayerVersion, rewardAccount, tornadoServiceFee } from '../config';
+import { configService, getHealthService, getJobService, getPriceService } from '../services';
+import { RelayerJobType } from '../types';
+import { WithdrawalData } from '../services/tx.service';
+
+export function mainHandler(server: FastifyInstance, options, next) {
+  const jobService = getJobService();
+  const priceService = getPriceService();
+  const healthService = getHealthService();
+
+  server.get('/', async (req, res) => {
+    res
+      .type('text/html')
+      .send(
+        '<h1>This is <a href=https://tornado.cash>tornado.cash</a> Relayer service.' +
+          ' Check the <a href=/v1/status>/status</a> for settings</h1>',
+      );
+  });
+
+  server.get('/status', { schema: statusSchema }, async (req, res) => {
+    const ethPrices = await priceService.getPrices();
+    const currentQueue = await jobService.getQueueCount();
+    const health = await healthService.getStatus();
+    const version = relayerVersion;
+    res.send({
+      rewardAccount,
+      instances: configService.instances,
+      netId: configService.netId,
+      ethPrices,
+      tornadoServiceFee,
+      version,
+      health,
+      currentQueue,
+    });
+  });
+  next();
+}
+
+export function relayerHandler(server: FastifyInstance, options, next) {
+  const jobService = getJobService();
+  server.get<{ Params: { id: string } }>('/jobs/:id', { schema: jobsSchema }, async (req, res) => {
+    const job = await jobService.getJob(req.params.id);
+    if (!job) return server.httpErrors.notFound();
+    res.send({ ...job.data, failedReason: job.failedReason });
+  });
+
+  server.post<{ Body: WithdrawalData }>('/tornadoWithdraw', { schema: withdrawSchema }, async (req, res) => {
+    server.log.info(`Withdrawal request: ${JSON.stringify(req.body)}`);
+    const id = await jobService.postJob(RelayerJobType.TORNADO_WITHDRAW, req.body);
+    res.send({ id });
+  });
+  next();
+}

src/app/schema.ts

@@ -0,0 +1,80 @@
+const addressType = {
+  type: 'string',
+  pattern: '^0x[a-fA-F0-9]{40}$',
+  isAddress: true,
+} as const;
+const proofType = { type: 'string', pattern: '^0x[a-fA-F0-9]{512}$' } as const;
+// const encryptedAccountType = { type: 'string', pattern: '^0x[a-fA-F0-9]{392}$' } as const;
+const bytes32Type = { type: 'string', pattern: '^0x[a-fA-F0-9]{64}$' } as const;
+const instanceType = { ...addressType, isKnownContract: true } as const;
+const relayerType = { ...addressType, isFeeRecipient: true } as const;
+
+export const idParamsSchema = {
+  type: 'object',
+  properties: {
+    id: { type: 'string', format: 'uuid' },
+  },
+  required: ['id'],
+  additionalProperties: false,
+} as const;
+
+export const withdrawBodySchema = {
+  type: 'object',
+  properties: {
+    proof: proofType,
+    contract: instanceType,
+    args: {
+      type: 'array',
+      maxItems: 6,
+      minItems: 6,
+      items: [bytes32Type, bytes32Type, addressType, relayerType, bytes32Type, bytes32Type],
+    },
+  },
+  additionalProperties: false,
+  required: ['proof', 'contract', 'args'],
+} as const;
+
+export const jobsResponseSchema = {
+  ...withdrawBodySchema,
+  properties: {
+    id: { type: 'string' },
+    status: { type: 'string' },
+    type: { type: 'string' },
+    confirmations: { type: 'integer' },
+    txHash: { type: 'string' },
+    ...withdrawBodySchema.properties,
+    failedReason: { type: 'string' },
+  },
+} as const;
+
+export const jobsSchema = {
+  params: idParamsSchema,
+  response: {
+    200: jobsResponseSchema,
+  },
+};
+export const withdrawSchema = {
+  body: withdrawBodySchema,
+  response: {
+    200: idParamsSchema,
+  },
+};
+const statusResponseSchema = {
+  type: 'object',
+  properties: {
+    rewardAccount: addressType,
+    netId: { type: 'integer' },
+    version: { type: 'string' },
+    tornadoServiceFee: { type: 'number' },
+    currentQueue: { type: 'number' },
+    ethPrices: { type: 'object', additionalProperties: true },
+    instances: { type: 'object', additionalProperties: true },
+    health: { type: 'object', additionalProperties: true },
+  },
+} as const;
+
+export const statusSchema = {
+  response: {
+    200: statusResponseSchema,
+  },
+};

src/app/server.ts

@@ -0,0 +1,35 @@
+import fastify from 'fastify';
+import cors from '@fastify/cors';
+import fastifySensible from '@fastify/sensible';
+import helmet from '@fastify/helmet';
+
+import validator from './plugins/validator';
+import { mainHandler, relayerHandler } from './routes';
+
+function createServer() {
+  const server = fastify({
+    logger: true,
+    trustProxy: true,
+    pluginTimeout: 5000,
+    bodyLimit: 1048576, // 1 mb
+  });
+  server.register(cors);
+  server.register(validator);
+  server.register(helmet, { contentSecurityPolicy: false, frameguard: true });
+  server.register(fastifySensible);
+  server.register(mainHandler);
+  server.register(mainHandler, { prefix: '/v1' });
+  server.register(relayerHandler, { prefix: '/v1' });
+
+  server.setErrorHandler((error, req, res) => {
+    req.log.error(error.toString());
+    let statusCode = 500;
+    if ('validation' in error) {
+      statusCode = 400;
+    }
+    res.code(statusCode).send({ error: error.toString() });
+  });
+  return server;
+}
+
+export default createServer;

src/config.js

@@ -1,31 +0,0 @@
-require('dotenv').config()
-
-const { jobType } = require('./constants')
-const tornConfig = require('torn-token')
-module.exports = {
-  netId: Number(process.env.NET_ID) || 1,
-  redisUrl: process.env.REDIS_URL || 'redis://127.0.0.1:6379',
-  httpRpcUrl: process.env.HTTP_RPC_URL,
-  wsRpcUrl: process.env.WS_RPC_URL,
-  oracleRpcUrl: process.env.ORACLE_RPC_URL || 'https://mainnet.infura.io/',
-  offchainOracleAddress: '0x07D91f5fb9Bf7798734C3f606dB065549F6893bb',
-  aggregatorAddress: process.env.AGGREGATOR,
-  minerMerkleTreeHeight: 20,
-  privateKey: process.env.PRIVATE_KEY,
-  instances: tornConfig.instances,
-  torn: tornConfig,
-  port: process.env.APP_PORT || 8000,
-  tornadoServiceFee: Number(process.env.REGULAR_TORNADO_WITHDRAW_FEE),
-  miningServiceFee: Number(process.env.MINING_SERVICE_FEE),
-  rewardAccount: process.env.REWARD_ACCOUNT,
-  governanceAddress: '0x5efda50f22d34F262c29268506C5Fa42cB56A1Ce',
-  tornadoGoerliProxy: '0x454d870a72e29d5E5697f635128D18077BD04C60',
-  gasLimits: {
-    [jobType.TORNADO_WITHDRAW]: 390000,
-    WITHDRAW_WITH_EXTRA: 700000,
-    [jobType.MINING_REWARD]: 455000,
-    [jobType.MINING_WITHDRAW]: 400000,
-  },
-  minimumBalance: '1000000000000000000',
-  baseFeeReserve: Number(process.env.BASE_FEE_RESERVE_PERCENTAGE),
-}

src/config.ts

@@ -0,0 +1,112 @@
+import { RelayerJobType } from './types';
+import tornConfig, { availableIds } from 'torn-token';
+import { config } from 'dotenv';
+import { version } from '../package.json';
+import { BigNumber } from 'ethers';
+
+config();
+const isProduction = process.env.NODE_ENV === 'production';
+export const relayerVersion = version;
+export const netId = <availableIds>Number(process.env.NET_ID ?? 1);
+export const redisUrl = process.env.REDIS_URL || 'redis://127.0.0.1:6379';
+export const rpcUrl = process.env.HTTP_RPC_URL;
+export const CONFIRMATIONS = Number(process.env.CONFIRMATIONS ?? 4);
+export const MAX_GAS_PRICE = Number(process.env.MAX_GAS_PRICE ?? 1000);
+export const GAS_BUMP_PERCENTAGE = Number(process.env.GAS_BUMP_PERCENTAGE ?? 5);
+export const mainnetRpcUrl = process.env.MAINNET_RPC_URL || process.env.ORACLE_RPC_URL || 'https://api.securerpc.com/v1';
+export const oracleRpcUrl = process.env.ORACLE_RPC_URL || 'https://api.securerpc.com/v1';
+export const offchainOracleAddress = '0x07D91f5fb9Bf7798734C3f606dB065549F6893bb';
+export const multiCallAddress = '0xda3c19c6fe954576707fa24695efb830d9cca1ca';
+export const privateKey = process.env.PRIVATE_KEY;
+export const instances = tornConfig.instances;
+export const torn = tornConfig;
+export const port = Number(process.env.APP_PORT) || 8000;
+export const host = isProduction ? 'https://' + process.env.VIRTUAL_HOST : `http://localhost:${port}`;
+export const tornadoServiceFee = Number(process.env.RELAYER_FEE);
+export const rewardAccount = process.env.REWARD_ACCOUNT;
+export const tornadoGoerliProxy = '0x454d870a72e29d5E5697f635128D18077BD04C60';
+export const ovmGasPriceOracleContract = '0x420000000000000000000000000000000000000F';
+export const txJobAttempts = 3;
+export const gasLimits = {
+  [RelayerJobType.TORNADO_WITHDRAW]: 390000,
+  [RelayerJobType.WITHDRAW_WITH_EXTRA]: 700000,
+  [RelayerJobType.OP_TORNADO_WITHDRAW]: 440000,
+  [RelayerJobType.ARB_TORNADO_WITHDRAW]: 1900000,
+};
+const minimumBalances: { [availableId in availableIds]: number } = {
+  1: 0.5, // 0.5 ETH on Ethereum mainnet
+  5: 10, // 10 ETH on Goerli testnet (because of high gas spikes)
+  10: 0.1, // 0.1 ETH on Optimism
+  56: 0.1, // 0.1 BNB on Binance Smart Chain
+  100: 100, // 100 XDAI on Gnosis (~ 100$)
+  137: 10, // 10 MATIC on Polygon
+  42161: 0.1, // 0.1 ETH on Arbitrum
+  43114: 10, // 10 AVAX on Avalanche C-Chain
+};
+const decimals = BigNumber.from(10).pow(18);
+export const minimumBalance = BigNumber.from(minimumBalances[netId] * 10) // BN don't accept float values
+  .mul(decimals.div(10))
+  .toString();
+export const minimumTornBalance = BigNumber.from(500).mul(decimals).toString();
+export const tornToken = {
+  tokenAddress: '0x77777FeDdddFfC19Ff86DB637967013e6C6A116C',
+  symbol: 'TORN',
+  decimals: 18,
+};
+
+export const networkConfig = {
+  netId56: {
+    gasPrices: {
+      instant: 5,
+      fast: 5,
+      standard: 5,
+      low: 5,
+    },
+    nativeCurrency: 'bnb',
+  },
+  netId10: {
+    gasPrices: {
+      instant: 0.001,
+      fast: 0.001,
+      standard: 0.001,
+      low: 0.001,
+    },
+    nativeCurrency: 'eth',
+  },
+  netId100: {
+    gasPrices: {
+      instant: 6,
+      fast: 5,
+      standard: 4,
+      low: 1,
+    },
+    nativeCurrency: 'xdai',
+  },
+  netId137: {
+    gasPrices: {
+      instant: 100,
+      fast: 75,
+      standard: 50,
+      low: 30,
+    },
+    nativeCurrency: 'matic',
+  },
+  netId42161: {
+    gasPrices: {
+      instant: 4,
+      fast: 3,
+      standard: 2.52,
+      low: 2.29,
+    },
+    nativeCurrency: 'eth',
+  },
+  netId43114: {
+    gasPrices: {
+      instant: 225,
+      fast: 35,
+      standard: 25,
+      low: 25,
+    },
+    nativeCurrency: 'avax',
+  },
+};

src/constants.js

@@ -1,20 +0,0 @@
-const jobType = Object.freeze({
-  TORNADO_WITHDRAW: 'TORNADO_WITHDRAW',
-  MINING_REWARD: 'MINING_REWARD',
-  MINING_WITHDRAW: 'MINING_WITHDRAW',
-})
-
-const status = Object.freeze({
-  QUEUED: 'QUEUED',
-  ACCEPTED: 'ACCEPTED',
-  SENT: 'SENT',
-  MINED: 'MINED',
-  RESUBMITTED: 'RESUBMITTED',
-  CONFIRMED: 'CONFIRMED',
-  FAILED: 'FAILED',
-})
-
-module.exports = {
-  jobType,
-  status,
-}

src/contracts/AggregatorAbi.ts

@@ -0,0 +1,592 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+} from "./common";
+
+export interface AggregatorAbiInterface extends utils.Interface {
+  functions: {
+    "addConnector(address)": FunctionFragment;
+    "addOracle(address,uint8)": FunctionFragment;
+    "connectors()": FunctionFragment;
+    "getRate(address,address,bool)": FunctionFragment;
+    "getRateToEth(address,bool)": FunctionFragment;
+    "multiWrapper()": FunctionFragment;
+    "oracles()": FunctionFragment;
+    "owner()": FunctionFragment;
+    "removeConnector(address)": FunctionFragment;
+    "removeOracle(address,uint8)": FunctionFragment;
+    "renounceOwnership()": FunctionFragment;
+    "setMultiWrapper(address)": FunctionFragment;
+    "transferOwnership(address)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "addConnector"
+      | "addOracle"
+      | "connectors"
+      | "getRate"
+      | "getRateToEth"
+      | "multiWrapper"
+      | "oracles"
+      | "owner"
+      | "removeConnector"
+      | "removeOracle"
+      | "renounceOwnership"
+      | "setMultiWrapper"
+      | "transferOwnership"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "addConnector",
+    values: [string]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "addOracle",
+    values: [string, BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "connectors",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "getRate",
+    values: [string, string, boolean]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "getRateToEth",
+    values: [string, boolean]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "multiWrapper",
+    values?: undefined
+  ): string;
+  encodeFunctionData(functionFragment: "oracles", values?: undefined): string;
+  encodeFunctionData(functionFragment: "owner", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "removeConnector",
+    values: [string]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "removeOracle",
+    values: [string, BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "renounceOwnership",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "setMultiWrapper",
+    values: [string]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferOwnership",
+    values: [string]
+  ): string;
+
+  decodeFunctionResult(
+    functionFragment: "addConnector",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "addOracle", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "connectors", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "getRate", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "getRateToEth",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "multiWrapper",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "oracles", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "owner", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "removeConnector",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "removeOracle",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "renounceOwnership",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "setMultiWrapper",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "transferOwnership",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "ConnectorAdded(address)": EventFragment;
+    "ConnectorRemoved(address)": EventFragment;
+    "MultiWrapperUpdated(address)": EventFragment;
+    "OracleAdded(address,uint8)": EventFragment;
+    "OracleRemoved(address,uint8)": EventFragment;
+    "OwnershipTransferred(address,address)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "ConnectorAdded"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "ConnectorRemoved"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "MultiWrapperUpdated"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OracleAdded"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OracleRemoved"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OwnershipTransferred"): EventFragment;
+}
+
+export interface ConnectorAddedEventObject {
+  connector: string;
+}
+export type ConnectorAddedEvent = TypedEvent<
+  [string],
+  ConnectorAddedEventObject
+>;
+
+export type ConnectorAddedEventFilter = TypedEventFilter<ConnectorAddedEvent>;
+
+export interface ConnectorRemovedEventObject {
+  connector: string;
+}
+export type ConnectorRemovedEvent = TypedEvent<
+  [string],
+  ConnectorRemovedEventObject
+>;
+
+export type ConnectorRemovedEventFilter =
+  TypedEventFilter<ConnectorRemovedEvent>;
+
+export interface MultiWrapperUpdatedEventObject {
+  multiWrapper: string;
+}
+export type MultiWrapperUpdatedEvent = TypedEvent<
+  [string],
+  MultiWrapperUpdatedEventObject
+>;
+
+export type MultiWrapperUpdatedEventFilter =
+  TypedEventFilter<MultiWrapperUpdatedEvent>;
+
+export interface OracleAddedEventObject {
+  oracle: string;
+  oracleType: number;
+}
+export type OracleAddedEvent = TypedEvent<
+  [string, number],
+  OracleAddedEventObject
+>;
+
+export type OracleAddedEventFilter = TypedEventFilter<OracleAddedEvent>;
+
+export interface OracleRemovedEventObject {
+  oracle: string;
+  oracleType: number;
+}
+export type OracleRemovedEvent = TypedEvent<
+  [string, number],
+  OracleRemovedEventObject
+>;
+
+export type OracleRemovedEventFilter = TypedEventFilter<OracleRemovedEvent>;
+
+export interface OwnershipTransferredEventObject {
+  previousOwner: string;
+  newOwner: string;
+}
+export type OwnershipTransferredEvent = TypedEvent<
+  [string, string],
+  OwnershipTransferredEventObject
+>;
+
+export type OwnershipTransferredEventFilter =
+  TypedEventFilter<OwnershipTransferredEvent>;
+
+export interface AggregatorAbi extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: AggregatorAbiInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    addConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    addOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    connectors(
+      overrides?: CallOverrides
+    ): Promise<[string[]] & { allConnectors: string[] }>;
+
+    getRate(
+      srcToken: string,
+      dstToken: string,
+      useWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber] & { weightedRate: BigNumber }>;
+
+    getRateToEth(
+      srcToken: string,
+      useSrcWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber] & { weightedRate: BigNumber }>;
+
+    multiWrapper(overrides?: CallOverrides): Promise<[string]>;
+
+    oracles(
+      overrides?: CallOverrides
+    ): Promise<
+      [string[], number[]] & { allOracles: string[]; oracleTypes: number[] }
+    >;
+
+    owner(overrides?: CallOverrides): Promise<[string]>;
+
+    removeConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    removeOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    setMultiWrapper(
+      _multiWrapper: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+  };
+
+  addConnector(
+    connector: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  addOracle(
+    oracle: string,
+    oracleKind: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  connectors(overrides?: CallOverrides): Promise<string[]>;
+
+  getRate(
+    srcToken: string,
+    dstToken: string,
+    useWrappers: boolean,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  getRateToEth(
+    srcToken: string,
+    useSrcWrappers: boolean,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  multiWrapper(overrides?: CallOverrides): Promise<string>;
+
+  oracles(
+    overrides?: CallOverrides
+  ): Promise<
+    [string[], number[]] & { allOracles: string[]; oracleTypes: number[] }
+  >;
+
+  owner(overrides?: CallOverrides): Promise<string>;
+
+  removeConnector(
+    connector: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  removeOracle(
+    oracle: string,
+    oracleKind: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  renounceOwnership(
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  setMultiWrapper(
+    _multiWrapper: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  transferOwnership(
+    newOwner: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    addConnector(connector: string, overrides?: CallOverrides): Promise<void>;
+
+    addOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    connectors(overrides?: CallOverrides): Promise<string[]>;
+
+    getRate(
+      srcToken: string,
+      dstToken: string,
+      useWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    getRateToEth(
+      srcToken: string,
+      useSrcWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    multiWrapper(overrides?: CallOverrides): Promise<string>;
+
+    oracles(
+      overrides?: CallOverrides
+    ): Promise<
+      [string[], number[]] & { allOracles: string[]; oracleTypes: number[] }
+    >;
+
+    owner(overrides?: CallOverrides): Promise<string>;
+
+    removeConnector(
+      connector: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    removeOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    renounceOwnership(overrides?: CallOverrides): Promise<void>;
+
+    setMultiWrapper(
+      _multiWrapper: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+  };
+
+  filters: {
+    "ConnectorAdded(address)"(connector?: null): ConnectorAddedEventFilter;
+    ConnectorAdded(connector?: null): ConnectorAddedEventFilter;
+
+    "ConnectorRemoved(address)"(connector?: null): ConnectorRemovedEventFilter;
+    ConnectorRemoved(connector?: null): ConnectorRemovedEventFilter;
+
+    "MultiWrapperUpdated(address)"(
+      multiWrapper?: null
+    ): MultiWrapperUpdatedEventFilter;
+    MultiWrapperUpdated(multiWrapper?: null): MultiWrapperUpdatedEventFilter;
+
+    "OracleAdded(address,uint8)"(
+      oracle?: null,
+      oracleType?: null
+    ): OracleAddedEventFilter;
+    OracleAdded(oracle?: null, oracleType?: null): OracleAddedEventFilter;
+
+    "OracleRemoved(address,uint8)"(
+      oracle?: null,
+      oracleType?: null
+    ): OracleRemovedEventFilter;
+    OracleRemoved(oracle?: null, oracleType?: null): OracleRemovedEventFilter;
+
+    "OwnershipTransferred(address,address)"(
+      previousOwner?: string | null,
+      newOwner?: string | null
+    ): OwnershipTransferredEventFilter;
+    OwnershipTransferred(
+      previousOwner?: string | null,
+      newOwner?: string | null
+    ): OwnershipTransferredEventFilter;
+  };
+
+  estimateGas: {
+    addConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    addOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    connectors(overrides?: CallOverrides): Promise<BigNumber>;
+
+    getRate(
+      srcToken: string,
+      dstToken: string,
+      useWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    getRateToEth(
+      srcToken: string,
+      useSrcWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    multiWrapper(overrides?: CallOverrides): Promise<BigNumber>;
+
+    oracles(overrides?: CallOverrides): Promise<BigNumber>;
+
+    owner(overrides?: CallOverrides): Promise<BigNumber>;
+
+    removeConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    removeOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    setMultiWrapper(
+      _multiWrapper: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    addConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    addOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    connectors(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    getRate(
+      srcToken: string,
+      dstToken: string,
+      useWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    getRateToEth(
+      srcToken: string,
+      useSrcWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    multiWrapper(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    oracles(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    owner(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    removeConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    removeOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    setMultiWrapper(
+      _multiWrapper: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/contracts/ERC20Abi.ts

@@ -0,0 +1,429 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+} from "./common";
+
+export interface ERC20AbiInterface extends utils.Interface {
+  functions: {
+    "totalSupply()": FunctionFragment;
+    "_totalSupply()": FunctionFragment;
+    "balanceOf(address)": FunctionFragment;
+    "transfer(address,uint256)": FunctionFragment;
+    "allowance(address,address)": FunctionFragment;
+    "transferFrom(address,address,uint256)": FunctionFragment;
+    "approve(address,uint256)": FunctionFragment;
+    "nonces(address)": FunctionFragment;
+    "permit(address,address,uint256,uint256,uint8,bytes32,bytes32)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "totalSupply"
+      | "_totalSupply"
+      | "balanceOf"
+      | "transfer"
+      | "allowance"
+      | "transferFrom"
+      | "approve"
+      | "nonces"
+      | "permit"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "totalSupply",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "_totalSupply",
+    values?: undefined
+  ): string;
+  encodeFunctionData(functionFragment: "balanceOf", values: [string]): string;
+  encodeFunctionData(
+    functionFragment: "transfer",
+    values: [string, BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "allowance",
+    values: [string, string]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferFrom",
+    values: [string, string, BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "approve",
+    values: [string, BigNumberish]
+  ): string;
+  encodeFunctionData(functionFragment: "nonces", values: [string]): string;
+  encodeFunctionData(
+    functionFragment: "permit",
+    values: [
+      string,
+      string,
+      BigNumberish,
+      BigNumberish,
+      BigNumberish,
+      BytesLike,
+      BytesLike
+    ]
+  ): string;
+
+  decodeFunctionResult(
+    functionFragment: "totalSupply",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "_totalSupply",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "balanceOf", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "transfer", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "allowance", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "transferFrom",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "approve", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "nonces", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "permit", data: BytesLike): Result;
+
+  events: {
+    "Approval(address,address,uint256)": EventFragment;
+    "Transfer(address,address,uint256)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "Approval"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "Transfer"): EventFragment;
+}
+
+export interface ApprovalEventObject {
+  owner: string;
+  spender: string;
+  value: BigNumber;
+}
+export type ApprovalEvent = TypedEvent<
+  [string, string, BigNumber],
+  ApprovalEventObject
+>;
+
+export type ApprovalEventFilter = TypedEventFilter<ApprovalEvent>;
+
+export interface TransferEventObject {
+  from: string;
+  to: string;
+  value: BigNumber;
+}
+export type TransferEvent = TypedEvent<
+  [string, string, BigNumber],
+  TransferEventObject
+>;
+
+export type TransferEventFilter = TypedEventFilter<TransferEvent>;
+
+export interface ERC20Abi extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: ERC20AbiInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    totalSupply(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    _totalSupply(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    balanceOf(who: string, overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    transfer(
+      to: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    allowance(
+      owner: string,
+      spender: string,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    transferFrom(
+      from: string,
+      to: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    approve(
+      spender: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    nonces(owner: string, overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    permit(
+      owner: string,
+      spender: string,
+      amount: BigNumberish,
+      deadline: BigNumberish,
+      v: BigNumberish,
+      r: BytesLike,
+      s: BytesLike,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+  };
+
+  totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+  _totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+  balanceOf(who: string, overrides?: CallOverrides): Promise<BigNumber>;
+
+  transfer(
+    to: string,
+    value: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  allowance(
+    owner: string,
+    spender: string,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  transferFrom(
+    from: string,
+    to: string,
+    value: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  approve(
+    spender: string,
+    value: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  nonces(owner: string, overrides?: CallOverrides): Promise<BigNumber>;
+
+  permit(
+    owner: string,
+    spender: string,
+    amount: BigNumberish,
+    deadline: BigNumberish,
+    v: BigNumberish,
+    r: BytesLike,
+    s: BytesLike,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    _totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    balanceOf(who: string, overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: string,
+      value: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    allowance(
+      owner: string,
+      spender: string,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    transferFrom(
+      from: string,
+      to: string,
+      value: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    approve(
+      spender: string,
+      value: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    nonces(owner: string, overrides?: CallOverrides): Promise<BigNumber>;
+
+    permit(
+      owner: string,
+      spender: string,
+      amount: BigNumberish,
+      deadline: BigNumberish,
+      v: BigNumberish,
+      r: BytesLike,
+      s: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<void>;
+  };
+
+  filters: {
+    "Approval(address,address,uint256)"(
+      owner?: string | null,
+      spender?: string | null,
+      value?: null
+    ): ApprovalEventFilter;
+    Approval(
+      owner?: string | null,
+      spender?: string | null,
+      value?: null
+    ): ApprovalEventFilter;
+
+    "Transfer(address,address,uint256)"(
+      from?: string | null,
+      to?: string | null,
+      value?: null
+    ): TransferEventFilter;
+    Transfer(
+      from?: string | null,
+      to?: string | null,
+      value?: null
+    ): TransferEventFilter;
+  };
+
+  estimateGas: {
+    totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    _totalSupply(overrides?: CallOverrides): Promise<BigNumber>;
+
+    balanceOf(who: string, overrides?: CallOverrides): Promise<BigNumber>;
+
+    transfer(
+      to: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    allowance(
+      owner: string,
+      spender: string,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    transferFrom(
+      from: string,
+      to: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    approve(
+      spender: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    nonces(owner: string, overrides?: CallOverrides): Promise<BigNumber>;
+
+    permit(
+      owner: string,
+      spender: string,
+      amount: BigNumberish,
+      deadline: BigNumberish,
+      v: BigNumberish,
+      r: BytesLike,
+      s: BytesLike,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    totalSupply(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    _totalSupply(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    balanceOf(
+      who: string,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    transfer(
+      to: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    allowance(
+      owner: string,
+      spender: string,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    transferFrom(
+      from: string,
+      to: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    approve(
+      spender: string,
+      value: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    nonces(
+      owner: string,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    permit(
+      owner: string,
+      spender: string,
+      amount: BigNumberish,
+      deadline: BigNumberish,
+      v: BigNumberish,
+      r: BytesLike,
+      s: BytesLike,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/contracts/MulticallAbi.ts

@@ -0,0 +1,112 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BytesLike,
+  CallOverrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type { FunctionFragment, Result } from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+} from "./common";
+
+export declare namespace MultiCall {
+  export type CallStruct = { to: string; data: BytesLike };
+
+  export type CallStructOutput = [string, string] & {
+    to: string;
+    data: string;
+  };
+}
+
+export interface MulticallAbiInterface extends utils.Interface {
+  functions: {
+    "multicall((address,bytes)[])": FunctionFragment;
+  };
+
+  getFunction(nameOrSignatureOrTopic: "multicall"): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "multicall",
+    values: [MultiCall.CallStruct[]]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "multicall", data: BytesLike): Result;
+
+  events: {};
+}
+
+export interface MulticallAbi extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: MulticallAbiInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    multicall(
+      calls: MultiCall.CallStruct[],
+      overrides?: CallOverrides
+    ): Promise<
+      [string[], boolean[]] & { results: string[]; success: boolean[] }
+    >;
+  };
+
+  multicall(
+    calls: MultiCall.CallStruct[],
+    overrides?: CallOverrides
+  ): Promise<[string[], boolean[]] & { results: string[]; success: boolean[] }>;
+
+  callStatic: {
+    multicall(
+      calls: MultiCall.CallStruct[],
+      overrides?: CallOverrides
+    ): Promise<
+      [string[], boolean[]] & { results: string[]; success: boolean[] }
+    >;
+  };
+
+  filters: {};
+
+  estimateGas: {
+    multicall(
+      calls: MultiCall.CallStruct[],
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    multicall(
+      calls: MultiCall.CallStruct[],
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/contracts/OffchainOracleAbi.ts

@@ -0,0 +1,592 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+} from "./common";
+
+export interface OffchainOracleAbiInterface extends utils.Interface {
+  functions: {
+    "addConnector(address)": FunctionFragment;
+    "addOracle(address,uint8)": FunctionFragment;
+    "connectors()": FunctionFragment;
+    "getRate(address,address,bool)": FunctionFragment;
+    "getRateToEth(address,bool)": FunctionFragment;
+    "multiWrapper()": FunctionFragment;
+    "oracles()": FunctionFragment;
+    "owner()": FunctionFragment;
+    "removeConnector(address)": FunctionFragment;
+    "removeOracle(address,uint8)": FunctionFragment;
+    "renounceOwnership()": FunctionFragment;
+    "setMultiWrapper(address)": FunctionFragment;
+    "transferOwnership(address)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "addConnector"
+      | "addOracle"
+      | "connectors"
+      | "getRate"
+      | "getRateToEth"
+      | "multiWrapper"
+      | "oracles"
+      | "owner"
+      | "removeConnector"
+      | "removeOracle"
+      | "renounceOwnership"
+      | "setMultiWrapper"
+      | "transferOwnership"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "addConnector",
+    values: [string]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "addOracle",
+    values: [string, BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "connectors",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "getRate",
+    values: [string, string, boolean]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "getRateToEth",
+    values: [string, boolean]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "multiWrapper",
+    values?: undefined
+  ): string;
+  encodeFunctionData(functionFragment: "oracles", values?: undefined): string;
+  encodeFunctionData(functionFragment: "owner", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "removeConnector",
+    values: [string]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "removeOracle",
+    values: [string, BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "renounceOwnership",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "setMultiWrapper",
+    values: [string]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferOwnership",
+    values: [string]
+  ): string;
+
+  decodeFunctionResult(
+    functionFragment: "addConnector",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "addOracle", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "connectors", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "getRate", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "getRateToEth",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "multiWrapper",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "oracles", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "owner", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "removeConnector",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "removeOracle",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "renounceOwnership",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "setMultiWrapper",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "transferOwnership",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "ConnectorAdded(address)": EventFragment;
+    "ConnectorRemoved(address)": EventFragment;
+    "MultiWrapperUpdated(address)": EventFragment;
+    "OracleAdded(address,uint8)": EventFragment;
+    "OracleRemoved(address,uint8)": EventFragment;
+    "OwnershipTransferred(address,address)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "ConnectorAdded"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "ConnectorRemoved"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "MultiWrapperUpdated"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OracleAdded"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OracleRemoved"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OwnershipTransferred"): EventFragment;
+}
+
+export interface ConnectorAddedEventObject {
+  connector: string;
+}
+export type ConnectorAddedEvent = TypedEvent<
+  [string],
+  ConnectorAddedEventObject
+>;
+
+export type ConnectorAddedEventFilter = TypedEventFilter<ConnectorAddedEvent>;
+
+export interface ConnectorRemovedEventObject {
+  connector: string;
+}
+export type ConnectorRemovedEvent = TypedEvent<
+  [string],
+  ConnectorRemovedEventObject
+>;
+
+export type ConnectorRemovedEventFilter =
+  TypedEventFilter<ConnectorRemovedEvent>;
+
+export interface MultiWrapperUpdatedEventObject {
+  multiWrapper: string;
+}
+export type MultiWrapperUpdatedEvent = TypedEvent<
+  [string],
+  MultiWrapperUpdatedEventObject
+>;
+
+export type MultiWrapperUpdatedEventFilter =
+  TypedEventFilter<MultiWrapperUpdatedEvent>;
+
+export interface OracleAddedEventObject {
+  oracle: string;
+  oracleType: number;
+}
+export type OracleAddedEvent = TypedEvent<
+  [string, number],
+  OracleAddedEventObject
+>;
+
+export type OracleAddedEventFilter = TypedEventFilter<OracleAddedEvent>;
+
+export interface OracleRemovedEventObject {
+  oracle: string;
+  oracleType: number;
+}
+export type OracleRemovedEvent = TypedEvent<
+  [string, number],
+  OracleRemovedEventObject
+>;
+
+export type OracleRemovedEventFilter = TypedEventFilter<OracleRemovedEvent>;
+
+export interface OwnershipTransferredEventObject {
+  previousOwner: string;
+  newOwner: string;
+}
+export type OwnershipTransferredEvent = TypedEvent<
+  [string, string],
+  OwnershipTransferredEventObject
+>;
+
+export type OwnershipTransferredEventFilter =
+  TypedEventFilter<OwnershipTransferredEvent>;
+
+export interface OffchainOracleAbi extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: OffchainOracleAbiInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    addConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    addOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    connectors(
+      overrides?: CallOverrides
+    ): Promise<[string[]] & { allConnectors: string[] }>;
+
+    getRate(
+      srcToken: string,
+      dstToken: string,
+      useWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber] & { weightedRate: BigNumber }>;
+
+    getRateToEth(
+      srcToken: string,
+      useSrcWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber] & { weightedRate: BigNumber }>;
+
+    multiWrapper(overrides?: CallOverrides): Promise<[string]>;
+
+    oracles(
+      overrides?: CallOverrides
+    ): Promise<
+      [string[], number[]] & { allOracles: string[]; oracleTypes: number[] }
+    >;
+
+    owner(overrides?: CallOverrides): Promise<[string]>;
+
+    removeConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    removeOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    setMultiWrapper(
+      _multiWrapper: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+  };
+
+  addConnector(
+    connector: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  addOracle(
+    oracle: string,
+    oracleKind: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  connectors(overrides?: CallOverrides): Promise<string[]>;
+
+  getRate(
+    srcToken: string,
+    dstToken: string,
+    useWrappers: boolean,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  getRateToEth(
+    srcToken: string,
+    useSrcWrappers: boolean,
+    overrides?: CallOverrides
+  ): Promise<BigNumber>;
+
+  multiWrapper(overrides?: CallOverrides): Promise<string>;
+
+  oracles(
+    overrides?: CallOverrides
+  ): Promise<
+    [string[], number[]] & { allOracles: string[]; oracleTypes: number[] }
+  >;
+
+  owner(overrides?: CallOverrides): Promise<string>;
+
+  removeConnector(
+    connector: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  removeOracle(
+    oracle: string,
+    oracleKind: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  renounceOwnership(
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  setMultiWrapper(
+    _multiWrapper: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  transferOwnership(
+    newOwner: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    addConnector(connector: string, overrides?: CallOverrides): Promise<void>;
+
+    addOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    connectors(overrides?: CallOverrides): Promise<string[]>;
+
+    getRate(
+      srcToken: string,
+      dstToken: string,
+      useWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    getRateToEth(
+      srcToken: string,
+      useSrcWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    multiWrapper(overrides?: CallOverrides): Promise<string>;
+
+    oracles(
+      overrides?: CallOverrides
+    ): Promise<
+      [string[], number[]] & { allOracles: string[]; oracleTypes: number[] }
+    >;
+
+    owner(overrides?: CallOverrides): Promise<string>;
+
+    removeConnector(
+      connector: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    removeOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    renounceOwnership(overrides?: CallOverrides): Promise<void>;
+
+    setMultiWrapper(
+      _multiWrapper: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+  };
+
+  filters: {
+    "ConnectorAdded(address)"(connector?: null): ConnectorAddedEventFilter;
+    ConnectorAdded(connector?: null): ConnectorAddedEventFilter;
+
+    "ConnectorRemoved(address)"(connector?: null): ConnectorRemovedEventFilter;
+    ConnectorRemoved(connector?: null): ConnectorRemovedEventFilter;
+
+    "MultiWrapperUpdated(address)"(
+      multiWrapper?: null
+    ): MultiWrapperUpdatedEventFilter;
+    MultiWrapperUpdated(multiWrapper?: null): MultiWrapperUpdatedEventFilter;
+
+    "OracleAdded(address,uint8)"(
+      oracle?: null,
+      oracleType?: null
+    ): OracleAddedEventFilter;
+    OracleAdded(oracle?: null, oracleType?: null): OracleAddedEventFilter;
+
+    "OracleRemoved(address,uint8)"(
+      oracle?: null,
+      oracleType?: null
+    ): OracleRemovedEventFilter;
+    OracleRemoved(oracle?: null, oracleType?: null): OracleRemovedEventFilter;
+
+    "OwnershipTransferred(address,address)"(
+      previousOwner?: string | null,
+      newOwner?: string | null
+    ): OwnershipTransferredEventFilter;
+    OwnershipTransferred(
+      previousOwner?: string | null,
+      newOwner?: string | null
+    ): OwnershipTransferredEventFilter;
+  };
+
+  estimateGas: {
+    addConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    addOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    connectors(overrides?: CallOverrides): Promise<BigNumber>;
+
+    getRate(
+      srcToken: string,
+      dstToken: string,
+      useWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    getRateToEth(
+      srcToken: string,
+      useSrcWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    multiWrapper(overrides?: CallOverrides): Promise<BigNumber>;
+
+    oracles(overrides?: CallOverrides): Promise<BigNumber>;
+
+    owner(overrides?: CallOverrides): Promise<BigNumber>;
+
+    removeConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    removeOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    setMultiWrapper(
+      _multiWrapper: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    addConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    addOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    connectors(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    getRate(
+      srcToken: string,
+      dstToken: string,
+      useWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    getRateToEth(
+      srcToken: string,
+      useSrcWrappers: boolean,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    multiWrapper(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    oracles(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    owner(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    removeConnector(
+      connector: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    removeOracle(
+      oracle: string,
+      oracleKind: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    setMultiWrapper(
+      _multiWrapper: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/contracts/OvmGasPriceOracleAbi.ts

@@ -0,0 +1,543 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+} from "./common";
+
+export interface OvmGasPriceOracleAbiInterface extends utils.Interface {
+  functions: {
+    "decimals()": FunctionFragment;
+    "gasPrice()": FunctionFragment;
+    "getL1Fee(bytes)": FunctionFragment;
+    "getL1GasUsed(bytes)": FunctionFragment;
+    "l1BaseFee()": FunctionFragment;
+    "overhead()": FunctionFragment;
+    "owner()": FunctionFragment;
+    "renounceOwnership()": FunctionFragment;
+    "scalar()": FunctionFragment;
+    "setDecimals(uint256)": FunctionFragment;
+    "setGasPrice(uint256)": FunctionFragment;
+    "setL1BaseFee(uint256)": FunctionFragment;
+    "setOverhead(uint256)": FunctionFragment;
+    "setScalar(uint256)": FunctionFragment;
+    "transferOwnership(address)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "decimals"
+      | "gasPrice"
+      | "getL1Fee"
+      | "getL1GasUsed"
+      | "l1BaseFee"
+      | "overhead"
+      | "owner"
+      | "renounceOwnership"
+      | "scalar"
+      | "setDecimals"
+      | "setGasPrice"
+      | "setL1BaseFee"
+      | "setOverhead"
+      | "setScalar"
+      | "transferOwnership"
+  ): FunctionFragment;
+
+  encodeFunctionData(functionFragment: "decimals", values?: undefined): string;
+  encodeFunctionData(functionFragment: "gasPrice", values?: undefined): string;
+  encodeFunctionData(functionFragment: "getL1Fee", values: [BytesLike]): string;
+  encodeFunctionData(
+    functionFragment: "getL1GasUsed",
+    values: [BytesLike]
+  ): string;
+  encodeFunctionData(functionFragment: "l1BaseFee", values?: undefined): string;
+  encodeFunctionData(functionFragment: "overhead", values?: undefined): string;
+  encodeFunctionData(functionFragment: "owner", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "renounceOwnership",
+    values?: undefined
+  ): string;
+  encodeFunctionData(functionFragment: "scalar", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "setDecimals",
+    values: [BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "setGasPrice",
+    values: [BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "setL1BaseFee",
+    values: [BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "setOverhead",
+    values: [BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "setScalar",
+    values: [BigNumberish]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "transferOwnership",
+    values: [string]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "decimals", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "gasPrice", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "getL1Fee", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "getL1GasUsed",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "l1BaseFee", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "overhead", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "owner", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "renounceOwnership",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "scalar", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "setDecimals",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "setGasPrice",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "setL1BaseFee",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "setOverhead",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "setScalar", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "transferOwnership",
+    data: BytesLike
+  ): Result;
+
+  events: {
+    "DecimalsUpdated(uint256)": EventFragment;
+    "GasPriceUpdated(uint256)": EventFragment;
+    "L1BaseFeeUpdated(uint256)": EventFragment;
+    "OverheadUpdated(uint256)": EventFragment;
+    "OwnershipTransferred(address,address)": EventFragment;
+    "ScalarUpdated(uint256)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "DecimalsUpdated"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "GasPriceUpdated"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "L1BaseFeeUpdated"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OverheadUpdated"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "OwnershipTransferred"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "ScalarUpdated"): EventFragment;
+}
+
+export interface DecimalsUpdatedEventObject {
+  arg0: BigNumber;
+}
+export type DecimalsUpdatedEvent = TypedEvent<
+  [BigNumber],
+  DecimalsUpdatedEventObject
+>;
+
+export type DecimalsUpdatedEventFilter = TypedEventFilter<DecimalsUpdatedEvent>;
+
+export interface GasPriceUpdatedEventObject {
+  arg0: BigNumber;
+}
+export type GasPriceUpdatedEvent = TypedEvent<
+  [BigNumber],
+  GasPriceUpdatedEventObject
+>;
+
+export type GasPriceUpdatedEventFilter = TypedEventFilter<GasPriceUpdatedEvent>;
+
+export interface L1BaseFeeUpdatedEventObject {
+  arg0: BigNumber;
+}
+export type L1BaseFeeUpdatedEvent = TypedEvent<
+  [BigNumber],
+  L1BaseFeeUpdatedEventObject
+>;
+
+export type L1BaseFeeUpdatedEventFilter =
+  TypedEventFilter<L1BaseFeeUpdatedEvent>;
+
+export interface OverheadUpdatedEventObject {
+  arg0: BigNumber;
+}
+export type OverheadUpdatedEvent = TypedEvent<
+  [BigNumber],
+  OverheadUpdatedEventObject
+>;
+
+export type OverheadUpdatedEventFilter = TypedEventFilter<OverheadUpdatedEvent>;
+
+export interface OwnershipTransferredEventObject {
+  previousOwner: string;
+  newOwner: string;
+}
+export type OwnershipTransferredEvent = TypedEvent<
+  [string, string],
+  OwnershipTransferredEventObject
+>;
+
+export type OwnershipTransferredEventFilter =
+  TypedEventFilter<OwnershipTransferredEvent>;
+
+export interface ScalarUpdatedEventObject {
+  arg0: BigNumber;
+}
+export type ScalarUpdatedEvent = TypedEvent<
+  [BigNumber],
+  ScalarUpdatedEventObject
+>;
+
+export type ScalarUpdatedEventFilter = TypedEventFilter<ScalarUpdatedEvent>;
+
+export interface OvmGasPriceOracleAbi extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: OvmGasPriceOracleAbiInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    decimals(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    gasPrice(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    getL1Fee(_data: BytesLike, overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    getL1GasUsed(
+      _data: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<[BigNumber]>;
+
+    l1BaseFee(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    overhead(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    owner(overrides?: CallOverrides): Promise<[string]>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    scalar(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    setDecimals(
+      _decimals: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    setGasPrice(
+      _gasPrice: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    setL1BaseFee(
+      _baseFee: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    setOverhead(
+      _overhead: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    setScalar(
+      _scalar: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+  };
+
+  decimals(overrides?: CallOverrides): Promise<BigNumber>;
+
+  gasPrice(overrides?: CallOverrides): Promise<BigNumber>;
+
+  getL1Fee(_data: BytesLike, overrides?: CallOverrides): Promise<BigNumber>;
+
+  getL1GasUsed(_data: BytesLike, overrides?: CallOverrides): Promise<BigNumber>;
+
+  l1BaseFee(overrides?: CallOverrides): Promise<BigNumber>;
+
+  overhead(overrides?: CallOverrides): Promise<BigNumber>;
+
+  owner(overrides?: CallOverrides): Promise<string>;
+
+  renounceOwnership(
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  scalar(overrides?: CallOverrides): Promise<BigNumber>;
+
+  setDecimals(
+    _decimals: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  setGasPrice(
+    _gasPrice: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  setL1BaseFee(
+    _baseFee: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  setOverhead(
+    _overhead: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  setScalar(
+    _scalar: BigNumberish,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  transferOwnership(
+    newOwner: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    decimals(overrides?: CallOverrides): Promise<BigNumber>;
+
+    gasPrice(overrides?: CallOverrides): Promise<BigNumber>;
+
+    getL1Fee(_data: BytesLike, overrides?: CallOverrides): Promise<BigNumber>;
+
+    getL1GasUsed(
+      _data: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    l1BaseFee(overrides?: CallOverrides): Promise<BigNumber>;
+
+    overhead(overrides?: CallOverrides): Promise<BigNumber>;
+
+    owner(overrides?: CallOverrides): Promise<string>;
+
+    renounceOwnership(overrides?: CallOverrides): Promise<void>;
+
+    scalar(overrides?: CallOverrides): Promise<BigNumber>;
+
+    setDecimals(
+      _decimals: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    setGasPrice(
+      _gasPrice: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    setL1BaseFee(
+      _baseFee: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    setOverhead(
+      _overhead: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    setScalar(_scalar: BigNumberish, overrides?: CallOverrides): Promise<void>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+  };
+
+  filters: {
+    "DecimalsUpdated(uint256)"(arg0?: null): DecimalsUpdatedEventFilter;
+    DecimalsUpdated(arg0?: null): DecimalsUpdatedEventFilter;
+
+    "GasPriceUpdated(uint256)"(arg0?: null): GasPriceUpdatedEventFilter;
+    GasPriceUpdated(arg0?: null): GasPriceUpdatedEventFilter;
+
+    "L1BaseFeeUpdated(uint256)"(arg0?: null): L1BaseFeeUpdatedEventFilter;
+    L1BaseFeeUpdated(arg0?: null): L1BaseFeeUpdatedEventFilter;
+
+    "OverheadUpdated(uint256)"(arg0?: null): OverheadUpdatedEventFilter;
+    OverheadUpdated(arg0?: null): OverheadUpdatedEventFilter;
+
+    "OwnershipTransferred(address,address)"(
+      previousOwner?: string | null,
+      newOwner?: string | null
+    ): OwnershipTransferredEventFilter;
+    OwnershipTransferred(
+      previousOwner?: string | null,
+      newOwner?: string | null
+    ): OwnershipTransferredEventFilter;
+
+    "ScalarUpdated(uint256)"(arg0?: null): ScalarUpdatedEventFilter;
+    ScalarUpdated(arg0?: null): ScalarUpdatedEventFilter;
+  };
+
+  estimateGas: {
+    decimals(overrides?: CallOverrides): Promise<BigNumber>;
+
+    gasPrice(overrides?: CallOverrides): Promise<BigNumber>;
+
+    getL1Fee(_data: BytesLike, overrides?: CallOverrides): Promise<BigNumber>;
+
+    getL1GasUsed(
+      _data: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    l1BaseFee(overrides?: CallOverrides): Promise<BigNumber>;
+
+    overhead(overrides?: CallOverrides): Promise<BigNumber>;
+
+    owner(overrides?: CallOverrides): Promise<BigNumber>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    scalar(overrides?: CallOverrides): Promise<BigNumber>;
+
+    setDecimals(
+      _decimals: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    setGasPrice(
+      _gasPrice: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    setL1BaseFee(
+      _baseFee: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    setOverhead(
+      _overhead: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    setScalar(
+      _scalar: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    decimals(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    gasPrice(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    getL1Fee(
+      _data: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    getL1GasUsed(
+      _data: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    l1BaseFee(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    overhead(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    owner(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    renounceOwnership(
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    scalar(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    setDecimals(
+      _decimals: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    setGasPrice(
+      _gasPrice: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    setL1BaseFee(
+      _baseFee: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    setOverhead(
+      _overhead: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    setScalar(
+      _scalar: BigNumberish,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    transferOwnership(
+      newOwner: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/contracts/ProxyLightAbi.ts

@@ -0,0 +1,252 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PayableOverrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+} from "./common";
+
+export interface ProxyLightAbiInterface extends utils.Interface {
+  functions: {
+    "backupNotes(bytes[])": FunctionFragment;
+    "deposit(address,bytes32,bytes)": FunctionFragment;
+    "withdraw(address,bytes,bytes32,bytes32,address,address,uint256,uint256)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic: "backupNotes" | "deposit" | "withdraw"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "backupNotes",
+    values: [BytesLike[]]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "deposit",
+    values: [string, BytesLike, BytesLike]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "withdraw",
+    values: [
+      string,
+      BytesLike,
+      BytesLike,
+      BytesLike,
+      string,
+      string,
+      BigNumberish,
+      BigNumberish
+    ]
+  ): string;
+
+  decodeFunctionResult(
+    functionFragment: "backupNotes",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "deposit", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "withdraw", data: BytesLike): Result;
+
+  events: {
+    "EncryptedNote(address,bytes)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "EncryptedNote"): EventFragment;
+}
+
+export interface EncryptedNoteEventObject {
+  sender: string;
+  encryptedNote: string;
+}
+export type EncryptedNoteEvent = TypedEvent<
+  [string, string],
+  EncryptedNoteEventObject
+>;
+
+export type EncryptedNoteEventFilter = TypedEventFilter<EncryptedNoteEvent>;
+
+export interface ProxyLightAbi extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: ProxyLightAbiInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    backupNotes(
+      _encryptedNotes: BytesLike[],
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    deposit(
+      _tornado: string,
+      _commitment: BytesLike,
+      _encryptedNote: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    withdraw(
+      _tornado: string,
+      _proof: BytesLike,
+      _root: BytesLike,
+      _nullifierHash: BytesLike,
+      _recipient: string,
+      _relayer: string,
+      _fee: BigNumberish,
+      _refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<ContractTransaction>;
+  };
+
+  backupNotes(
+    _encryptedNotes: BytesLike[],
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  deposit(
+    _tornado: string,
+    _commitment: BytesLike,
+    _encryptedNote: BytesLike,
+    overrides?: PayableOverrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  withdraw(
+    _tornado: string,
+    _proof: BytesLike,
+    _root: BytesLike,
+    _nullifierHash: BytesLike,
+    _recipient: string,
+    _relayer: string,
+    _fee: BigNumberish,
+    _refund: BigNumberish,
+    overrides?: PayableOverrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    backupNotes(
+      _encryptedNotes: BytesLike[],
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    deposit(
+      _tornado: string,
+      _commitment: BytesLike,
+      _encryptedNote: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    withdraw(
+      _tornado: string,
+      _proof: BytesLike,
+      _root: BytesLike,
+      _nullifierHash: BytesLike,
+      _recipient: string,
+      _relayer: string,
+      _fee: BigNumberish,
+      _refund: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+  };
+
+  filters: {
+    "EncryptedNote(address,bytes)"(
+      sender?: string | null,
+      encryptedNote?: null
+    ): EncryptedNoteEventFilter;
+    EncryptedNote(
+      sender?: string | null,
+      encryptedNote?: null
+    ): EncryptedNoteEventFilter;
+  };
+
+  estimateGas: {
+    backupNotes(
+      _encryptedNotes: BytesLike[],
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    deposit(
+      _tornado: string,
+      _commitment: BytesLike,
+      _encryptedNote: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    withdraw(
+      _tornado: string,
+      _proof: BytesLike,
+      _root: BytesLike,
+      _nullifierHash: BytesLike,
+      _recipient: string,
+      _relayer: string,
+      _fee: BigNumberish,
+      _refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    backupNotes(
+      _encryptedNotes: BytesLike[],
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    deposit(
+      _tornado: string,
+      _commitment: BytesLike,
+      _encryptedNote: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    withdraw(
+      _tornado: string,
+      _proof: BytesLike,
+      _root: BytesLike,
+      _nullifierHash: BytesLike,
+      _recipient: string,
+      _relayer: string,
+      _fee: BigNumberish,
+      _refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/contracts/TornadoInstanceAbi.ts

@@ -0,0 +1,691 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PayableOverrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type {
+  FunctionFragment,
+  Result,
+  EventFragment,
+} from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+} from "./common";
+
+export interface TornadoInstanceAbiInterface extends utils.Interface {
+  functions: {
+    "changeOperator(address)": FunctionFragment;
+    "nullifierHashes(bytes32)": FunctionFragment;
+    "withdraw(bytes,bytes32,bytes32,address,address,uint256,uint256)": FunctionFragment;
+    "verifier()": FunctionFragment;
+    "hashLeftRight(bytes32,bytes32)": FunctionFragment;
+    "FIELD_SIZE()": FunctionFragment;
+    "levels()": FunctionFragment;
+    "operator()": FunctionFragment;
+    "isKnownRoot(bytes32)": FunctionFragment;
+    "commitments(bytes32)": FunctionFragment;
+    "denomination()": FunctionFragment;
+    "currentRootIndex()": FunctionFragment;
+    "updateVerifier(address)": FunctionFragment;
+    "deposit(bytes32)": FunctionFragment;
+    "getLastRoot()": FunctionFragment;
+    "roots(uint256)": FunctionFragment;
+    "ROOT_HISTORY_SIZE()": FunctionFragment;
+    "isSpent(bytes32)": FunctionFragment;
+    "zeros(uint256)": FunctionFragment;
+    "ZERO_VALUE()": FunctionFragment;
+    "filledSubtrees(uint256)": FunctionFragment;
+    "nextIndex()": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "changeOperator"
+      | "nullifierHashes"
+      | "withdraw"
+      | "verifier"
+      | "hashLeftRight"
+      | "FIELD_SIZE"
+      | "levels"
+      | "operator"
+      | "isKnownRoot"
+      | "commitments"
+      | "denomination"
+      | "currentRootIndex"
+      | "updateVerifier"
+      | "deposit"
+      | "getLastRoot"
+      | "roots"
+      | "ROOT_HISTORY_SIZE"
+      | "isSpent"
+      | "zeros"
+      | "ZERO_VALUE"
+      | "filledSubtrees"
+      | "nextIndex"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "changeOperator",
+    values: [string]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "nullifierHashes",
+    values: [BytesLike]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "withdraw",
+    values: [
+      BytesLike,
+      BytesLike,
+      BytesLike,
+      string,
+      string,
+      BigNumberish,
+      BigNumberish
+    ]
+  ): string;
+  encodeFunctionData(functionFragment: "verifier", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "hashLeftRight",
+    values: [BytesLike, BytesLike]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "FIELD_SIZE",
+    values?: undefined
+  ): string;
+  encodeFunctionData(functionFragment: "levels", values?: undefined): string;
+  encodeFunctionData(functionFragment: "operator", values?: undefined): string;
+  encodeFunctionData(
+    functionFragment: "isKnownRoot",
+    values: [BytesLike]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "commitments",
+    values: [BytesLike]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "denomination",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "currentRootIndex",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "updateVerifier",
+    values: [string]
+  ): string;
+  encodeFunctionData(functionFragment: "deposit", values: [BytesLike]): string;
+  encodeFunctionData(
+    functionFragment: "getLastRoot",
+    values?: undefined
+  ): string;
+  encodeFunctionData(functionFragment: "roots", values: [BigNumberish]): string;
+  encodeFunctionData(
+    functionFragment: "ROOT_HISTORY_SIZE",
+    values?: undefined
+  ): string;
+  encodeFunctionData(functionFragment: "isSpent", values: [BytesLike]): string;
+  encodeFunctionData(functionFragment: "zeros", values: [BigNumberish]): string;
+  encodeFunctionData(
+    functionFragment: "ZERO_VALUE",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "filledSubtrees",
+    values: [BigNumberish]
+  ): string;
+  encodeFunctionData(functionFragment: "nextIndex", values?: undefined): string;
+
+  decodeFunctionResult(
+    functionFragment: "changeOperator",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "nullifierHashes",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "withdraw", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "verifier", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "hashLeftRight",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "FIELD_SIZE", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "levels", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "operator", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "isKnownRoot",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "commitments",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "denomination",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "currentRootIndex",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(
+    functionFragment: "updateVerifier",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "deposit", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "getLastRoot",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "roots", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "ROOT_HISTORY_SIZE",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "isSpent", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "zeros", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "ZERO_VALUE", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "filledSubtrees",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "nextIndex", data: BytesLike): Result;
+
+  events: {
+    "Deposit(bytes32,uint32,uint256)": EventFragment;
+    "Withdrawal(address,bytes32,address,uint256)": EventFragment;
+  };
+
+  getEvent(nameOrSignatureOrTopic: "Deposit"): EventFragment;
+  getEvent(nameOrSignatureOrTopic: "Withdrawal"): EventFragment;
+}
+
+export interface DepositEventObject {
+  commitment: string;
+  leafIndex: number;
+  timestamp: BigNumber;
+}
+export type DepositEvent = TypedEvent<
+  [string, number, BigNumber],
+  DepositEventObject
+>;
+
+export type DepositEventFilter = TypedEventFilter<DepositEvent>;
+
+export interface WithdrawalEventObject {
+  to: string;
+  nullifierHash: string;
+  relayer: string;
+  fee: BigNumber;
+}
+export type WithdrawalEvent = TypedEvent<
+  [string, string, string, BigNumber],
+  WithdrawalEventObject
+>;
+
+export type WithdrawalEventFilter = TypedEventFilter<WithdrawalEvent>;
+
+export interface TornadoInstanceAbi extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: TornadoInstanceAbiInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    changeOperator(
+      _newOperator: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    nullifierHashes(
+      arg0: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<[boolean]>;
+
+    withdraw(
+      _proof: BytesLike,
+      _root: BytesLike,
+      _nullifierHash: BytesLike,
+      _recipient: string,
+      _relayer: string,
+      _fee: BigNumberish,
+      _refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    verifier(overrides?: CallOverrides): Promise<[string]>;
+
+    hashLeftRight(
+      _left: BytesLike,
+      _right: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<[string]>;
+
+    FIELD_SIZE(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    levels(overrides?: CallOverrides): Promise<[number]>;
+
+    operator(overrides?: CallOverrides): Promise<[string]>;
+
+    isKnownRoot(
+      _root: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<[boolean]>;
+
+    commitments(arg0: BytesLike, overrides?: CallOverrides): Promise<[boolean]>;
+
+    denomination(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    currentRootIndex(overrides?: CallOverrides): Promise<[number]>;
+
+    updateVerifier(
+      _newVerifier: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    deposit(
+      _commitment: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    getLastRoot(overrides?: CallOverrides): Promise<[string]>;
+
+    roots(arg0: BigNumberish, overrides?: CallOverrides): Promise<[string]>;
+
+    ROOT_HISTORY_SIZE(overrides?: CallOverrides): Promise<[number]>;
+
+    isSpent(
+      _nullifierHash: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<[boolean]>;
+
+    zeros(arg0: BigNumberish, overrides?: CallOverrides): Promise<[string]>;
+
+    ZERO_VALUE(overrides?: CallOverrides): Promise<[BigNumber]>;
+
+    filledSubtrees(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<[string]>;
+
+    nextIndex(overrides?: CallOverrides): Promise<[number]>;
+  };
+
+  changeOperator(
+    _newOperator: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  nullifierHashes(arg0: BytesLike, overrides?: CallOverrides): Promise<boolean>;
+
+  withdraw(
+    _proof: BytesLike,
+    _root: BytesLike,
+    _nullifierHash: BytesLike,
+    _recipient: string,
+    _relayer: string,
+    _fee: BigNumberish,
+    _refund: BigNumberish,
+    overrides?: PayableOverrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  verifier(overrides?: CallOverrides): Promise<string>;
+
+  hashLeftRight(
+    _left: BytesLike,
+    _right: BytesLike,
+    overrides?: CallOverrides
+  ): Promise<string>;
+
+  FIELD_SIZE(overrides?: CallOverrides): Promise<BigNumber>;
+
+  levels(overrides?: CallOverrides): Promise<number>;
+
+  operator(overrides?: CallOverrides): Promise<string>;
+
+  isKnownRoot(_root: BytesLike, overrides?: CallOverrides): Promise<boolean>;
+
+  commitments(arg0: BytesLike, overrides?: CallOverrides): Promise<boolean>;
+
+  denomination(overrides?: CallOverrides): Promise<BigNumber>;
+
+  currentRootIndex(overrides?: CallOverrides): Promise<number>;
+
+  updateVerifier(
+    _newVerifier: string,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  deposit(
+    _commitment: BytesLike,
+    overrides?: PayableOverrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  getLastRoot(overrides?: CallOverrides): Promise<string>;
+
+  roots(arg0: BigNumberish, overrides?: CallOverrides): Promise<string>;
+
+  ROOT_HISTORY_SIZE(overrides?: CallOverrides): Promise<number>;
+
+  isSpent(
+    _nullifierHash: BytesLike,
+    overrides?: CallOverrides
+  ): Promise<boolean>;
+
+  zeros(arg0: BigNumberish, overrides?: CallOverrides): Promise<string>;
+
+  ZERO_VALUE(overrides?: CallOverrides): Promise<BigNumber>;
+
+  filledSubtrees(
+    arg0: BigNumberish,
+    overrides?: CallOverrides
+  ): Promise<string>;
+
+  nextIndex(overrides?: CallOverrides): Promise<number>;
+
+  callStatic: {
+    changeOperator(
+      _newOperator: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    nullifierHashes(
+      arg0: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    withdraw(
+      _proof: BytesLike,
+      _root: BytesLike,
+      _nullifierHash: BytesLike,
+      _recipient: string,
+      _relayer: string,
+      _fee: BigNumberish,
+      _refund: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    verifier(overrides?: CallOverrides): Promise<string>;
+
+    hashLeftRight(
+      _left: BytesLike,
+      _right: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<string>;
+
+    FIELD_SIZE(overrides?: CallOverrides): Promise<BigNumber>;
+
+    levels(overrides?: CallOverrides): Promise<number>;
+
+    operator(overrides?: CallOverrides): Promise<string>;
+
+    isKnownRoot(_root: BytesLike, overrides?: CallOverrides): Promise<boolean>;
+
+    commitments(arg0: BytesLike, overrides?: CallOverrides): Promise<boolean>;
+
+    denomination(overrides?: CallOverrides): Promise<BigNumber>;
+
+    currentRootIndex(overrides?: CallOverrides): Promise<number>;
+
+    updateVerifier(
+      _newVerifier: string,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    deposit(_commitment: BytesLike, overrides?: CallOverrides): Promise<void>;
+
+    getLastRoot(overrides?: CallOverrides): Promise<string>;
+
+    roots(arg0: BigNumberish, overrides?: CallOverrides): Promise<string>;
+
+    ROOT_HISTORY_SIZE(overrides?: CallOverrides): Promise<number>;
+
+    isSpent(
+      _nullifierHash: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<boolean>;
+
+    zeros(arg0: BigNumberish, overrides?: CallOverrides): Promise<string>;
+
+    ZERO_VALUE(overrides?: CallOverrides): Promise<BigNumber>;
+
+    filledSubtrees(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<string>;
+
+    nextIndex(overrides?: CallOverrides): Promise<number>;
+  };
+
+  filters: {
+    "Deposit(bytes32,uint32,uint256)"(
+      commitment?: BytesLike | null,
+      leafIndex?: null,
+      timestamp?: null
+    ): DepositEventFilter;
+    Deposit(
+      commitment?: BytesLike | null,
+      leafIndex?: null,
+      timestamp?: null
+    ): DepositEventFilter;
+
+    "Withdrawal(address,bytes32,address,uint256)"(
+      to?: null,
+      nullifierHash?: null,
+      relayer?: string | null,
+      fee?: null
+    ): WithdrawalEventFilter;
+    Withdrawal(
+      to?: null,
+      nullifierHash?: null,
+      relayer?: string | null,
+      fee?: null
+    ): WithdrawalEventFilter;
+  };
+
+  estimateGas: {
+    changeOperator(
+      _newOperator: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    nullifierHashes(
+      arg0: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    withdraw(
+      _proof: BytesLike,
+      _root: BytesLike,
+      _nullifierHash: BytesLike,
+      _recipient: string,
+      _relayer: string,
+      _fee: BigNumberish,
+      _refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    verifier(overrides?: CallOverrides): Promise<BigNumber>;
+
+    hashLeftRight(
+      _left: BytesLike,
+      _right: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    FIELD_SIZE(overrides?: CallOverrides): Promise<BigNumber>;
+
+    levels(overrides?: CallOverrides): Promise<BigNumber>;
+
+    operator(overrides?: CallOverrides): Promise<BigNumber>;
+
+    isKnownRoot(
+      _root: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    commitments(arg0: BytesLike, overrides?: CallOverrides): Promise<BigNumber>;
+
+    denomination(overrides?: CallOverrides): Promise<BigNumber>;
+
+    currentRootIndex(overrides?: CallOverrides): Promise<BigNumber>;
+
+    updateVerifier(
+      _newVerifier: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    deposit(
+      _commitment: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    getLastRoot(overrides?: CallOverrides): Promise<BigNumber>;
+
+    roots(arg0: BigNumberish, overrides?: CallOverrides): Promise<BigNumber>;
+
+    ROOT_HISTORY_SIZE(overrides?: CallOverrides): Promise<BigNumber>;
+
+    isSpent(
+      _nullifierHash: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    zeros(arg0: BigNumberish, overrides?: CallOverrides): Promise<BigNumber>;
+
+    ZERO_VALUE(overrides?: CallOverrides): Promise<BigNumber>;
+
+    filledSubtrees(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<BigNumber>;
+
+    nextIndex(overrides?: CallOverrides): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    changeOperator(
+      _newOperator: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    nullifierHashes(
+      arg0: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    withdraw(
+      _proof: BytesLike,
+      _root: BytesLike,
+      _nullifierHash: BytesLike,
+      _recipient: string,
+      _relayer: string,
+      _fee: BigNumberish,
+      _refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    verifier(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    hashLeftRight(
+      _left: BytesLike,
+      _right: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    FIELD_SIZE(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    levels(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    operator(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    isKnownRoot(
+      _root: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    commitments(
+      arg0: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    denomination(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    currentRootIndex(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    updateVerifier(
+      _newVerifier: string,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    deposit(
+      _commitment: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    getLastRoot(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    roots(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    ROOT_HISTORY_SIZE(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    isSpent(
+      _nullifierHash: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    zeros(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    ZERO_VALUE(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    filledSubtrees(
+      arg0: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    nextIndex(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+  };
+}

src/contracts/TornadoProxyAbi.ts

@@ -0,0 +1,298 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type {
+  BaseContract,
+  BigNumber,
+  BigNumberish,
+  BytesLike,
+  CallOverrides,
+  ContractTransaction,
+  Overrides,
+  PayableOverrides,
+  PopulatedTransaction,
+  Signer,
+  utils,
+} from "ethers";
+import type { FunctionFragment, Result } from "@ethersproject/abi";
+import type { Listener, Provider } from "@ethersproject/providers";
+import type {
+  TypedEventFilter,
+  TypedEvent,
+  TypedListener,
+  OnEvent,
+} from "./common";
+
+export interface TornadoProxyAbiInterface extends utils.Interface {
+  functions: {
+    "governance()": FunctionFragment;
+    "instances(address)": FunctionFragment;
+    "resolve(bytes32)": FunctionFragment;
+    "tornadoTrees()": FunctionFragment;
+    "deposit(address,bytes32)": FunctionFragment;
+    "updateInstances(address,bool)": FunctionFragment;
+    "withdraw(address,bytes,bytes32,bytes32,address,address,uint256,uint256)": FunctionFragment;
+  };
+
+  getFunction(
+    nameOrSignatureOrTopic:
+      | "governance"
+      | "instances"
+      | "resolve"
+      | "tornadoTrees"
+      | "deposit"
+      | "updateInstances"
+      | "withdraw"
+  ): FunctionFragment;
+
+  encodeFunctionData(
+    functionFragment: "governance",
+    values?: undefined
+  ): string;
+  encodeFunctionData(functionFragment: "instances", values: [string]): string;
+  encodeFunctionData(functionFragment: "resolve", values: [BytesLike]): string;
+  encodeFunctionData(
+    functionFragment: "tornadoTrees",
+    values?: undefined
+  ): string;
+  encodeFunctionData(
+    functionFragment: "deposit",
+    values: [string, BytesLike]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "updateInstances",
+    values: [string, boolean]
+  ): string;
+  encodeFunctionData(
+    functionFragment: "withdraw",
+    values: [
+      string,
+      BytesLike,
+      BytesLike,
+      BytesLike,
+      string,
+      string,
+      BigNumberish,
+      BigNumberish
+    ]
+  ): string;
+
+  decodeFunctionResult(functionFragment: "governance", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "instances", data: BytesLike): Result;
+  decodeFunctionResult(functionFragment: "resolve", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "tornadoTrees",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "deposit", data: BytesLike): Result;
+  decodeFunctionResult(
+    functionFragment: "updateInstances",
+    data: BytesLike
+  ): Result;
+  decodeFunctionResult(functionFragment: "withdraw", data: BytesLike): Result;
+
+  events: {};
+}
+
+export interface TornadoProxyAbi extends BaseContract {
+  connect(signerOrProvider: Signer | Provider | string): this;
+  attach(addressOrName: string): this;
+  deployed(): Promise<this>;
+
+  interface: TornadoProxyAbiInterface;
+
+  queryFilter<TEvent extends TypedEvent>(
+    event: TypedEventFilter<TEvent>,
+    fromBlockOrBlockhash?: string | number | undefined,
+    toBlock?: string | number | undefined
+  ): Promise<Array<TEvent>>;
+
+  listeners<TEvent extends TypedEvent>(
+    eventFilter?: TypedEventFilter<TEvent>
+  ): Array<TypedListener<TEvent>>;
+  listeners(eventName?: string): Array<Listener>;
+  removeAllListeners<TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>
+  ): this;
+  removeAllListeners(eventName?: string): this;
+  off: OnEvent<this>;
+  on: OnEvent<this>;
+  once: OnEvent<this>;
+  removeListener: OnEvent<this>;
+
+  functions: {
+    governance(overrides?: CallOverrides): Promise<[string]>;
+
+    instances(arg0: string, overrides?: CallOverrides): Promise<[boolean]>;
+
+    resolve(node: BytesLike, overrides?: CallOverrides): Promise<[string]>;
+
+    tornadoTrees(overrides?: CallOverrides): Promise<[string]>;
+
+    deposit(
+      tornado: string,
+      commitment: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    updateInstances(
+      instance: string,
+      update: boolean,
+      overrides?: Overrides & { from?: string }
+    ): Promise<ContractTransaction>;
+
+    withdraw(
+      tornado: string,
+      proof: BytesLike,
+      root: BytesLike,
+      nullifierHash: BytesLike,
+      recipient: string,
+      relayer: string,
+      fee: BigNumberish,
+      refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<ContractTransaction>;
+  };
+
+  governance(overrides?: CallOverrides): Promise<string>;
+
+  instances(arg0: string, overrides?: CallOverrides): Promise<boolean>;
+
+  resolve(node: BytesLike, overrides?: CallOverrides): Promise<string>;
+
+  tornadoTrees(overrides?: CallOverrides): Promise<string>;
+
+  deposit(
+    tornado: string,
+    commitment: BytesLike,
+    overrides?: PayableOverrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  updateInstances(
+    instance: string,
+    update: boolean,
+    overrides?: Overrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  withdraw(
+    tornado: string,
+    proof: BytesLike,
+    root: BytesLike,
+    nullifierHash: BytesLike,
+    recipient: string,
+    relayer: string,
+    fee: BigNumberish,
+    refund: BigNumberish,
+    overrides?: PayableOverrides & { from?: string }
+  ): Promise<ContractTransaction>;
+
+  callStatic: {
+    governance(overrides?: CallOverrides): Promise<string>;
+
+    instances(arg0: string, overrides?: CallOverrides): Promise<boolean>;
+
+    resolve(node: BytesLike, overrides?: CallOverrides): Promise<string>;
+
+    tornadoTrees(overrides?: CallOverrides): Promise<string>;
+
+    deposit(
+      tornado: string,
+      commitment: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    updateInstances(
+      instance: string,
+      update: boolean,
+      overrides?: CallOverrides
+    ): Promise<void>;
+
+    withdraw(
+      tornado: string,
+      proof: BytesLike,
+      root: BytesLike,
+      nullifierHash: BytesLike,
+      recipient: string,
+      relayer: string,
+      fee: BigNumberish,
+      refund: BigNumberish,
+      overrides?: CallOverrides
+    ): Promise<void>;
+  };
+
+  filters: {};
+
+  estimateGas: {
+    governance(overrides?: CallOverrides): Promise<BigNumber>;
+
+    instances(arg0: string, overrides?: CallOverrides): Promise<BigNumber>;
+
+    resolve(node: BytesLike, overrides?: CallOverrides): Promise<BigNumber>;
+
+    tornadoTrees(overrides?: CallOverrides): Promise<BigNumber>;
+
+    deposit(
+      tornado: string,
+      commitment: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    updateInstances(
+      instance: string,
+      update: boolean,
+      overrides?: Overrides & { from?: string }
+    ): Promise<BigNumber>;
+
+    withdraw(
+      tornado: string,
+      proof: BytesLike,
+      root: BytesLike,
+      nullifierHash: BytesLike,
+      recipient: string,
+      relayer: string,
+      fee: BigNumberish,
+      refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<BigNumber>;
+  };
+
+  populateTransaction: {
+    governance(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    instances(
+      arg0: string,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    resolve(
+      node: BytesLike,
+      overrides?: CallOverrides
+    ): Promise<PopulatedTransaction>;
+
+    tornadoTrees(overrides?: CallOverrides): Promise<PopulatedTransaction>;
+
+    deposit(
+      tornado: string,
+      commitment: BytesLike,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    updateInstances(
+      instance: string,
+      update: boolean,
+      overrides?: Overrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+
+    withdraw(
+      tornado: string,
+      proof: BytesLike,
+      root: BytesLike,
+      nullifierHash: BytesLike,
+      recipient: string,
+      relayer: string,
+      fee: BigNumberish,
+      refund: BigNumberish,
+      overrides?: PayableOverrides & { from?: string }
+    ): Promise<PopulatedTransaction>;
+  };
+}

src/contracts/common.ts

@@ -0,0 +1,44 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+import type { Listener } from "@ethersproject/providers";
+import type { Event, EventFilter } from "ethers";
+
+export interface TypedEvent<
+  TArgsArray extends Array<any> = any,
+  TArgsObject = any
+> extends Event {
+  args: TArgsArray & TArgsObject;
+}
+
+export interface TypedEventFilter<_TEvent extends TypedEvent>
+  extends EventFilter {}
+
+export interface TypedListener<TEvent extends TypedEvent> {
+  (...listenerArg: [...__TypechainArgsArray<TEvent>, TEvent]): void;
+}
+
+type __TypechainArgsArray<T> = T extends TypedEvent<infer U> ? U : never;
+
+export interface OnEvent<TRes> {
+  <TEvent extends TypedEvent>(
+    eventFilter: TypedEventFilter<TEvent>,
+    listener: TypedListener<TEvent>
+  ): TRes;
+  (eventName: string, listener: Listener): TRes;
+}
+
+export type MinEthersFactory<C, ARGS> = {
+  deploy(...a: ARGS[]): Promise<C>;
+};
+
+export type GetContractTypeFromFactory<F> = F extends MinEthersFactory<
+  infer C,
+  any
+>
+  ? C
+  : never;
+
+export type GetARGsTypeFromFactory<F> = F extends MinEthersFactory<any, any>
+  ? Parameters<F["deploy"]>
+  : never;

src/contracts/factories/AggregatorAbi__factory.ts

@@ -0,0 +1,355 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type { AggregatorAbi, AggregatorAbiInterface } from "../AggregatorAbi";
+
+const _abi = [
+  {
+    inputs: [
+      {
+        internalType: "contract MultiWrapper",
+        name: "_multiWrapper",
+        type: "address",
+      },
+      {
+        internalType: "contract IOracle[]",
+        name: "existingOracles",
+        type: "address[]",
+      },
+      {
+        internalType: "enum OffchainOracle.OracleType[]",
+        name: "oracleTypes",
+        type: "uint8[]",
+      },
+      {
+        internalType: "contract IERC20[]",
+        name: "existingConnectors",
+        type: "address[]",
+      },
+      {
+        internalType: "contract IERC20",
+        name: "wBase",
+        type: "address",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "constructor",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract IERC20",
+        name: "connector",
+        type: "address",
+      },
+    ],
+    name: "ConnectorAdded",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract IERC20",
+        name: "connector",
+        type: "address",
+      },
+    ],
+    name: "ConnectorRemoved",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract MultiWrapper",
+        name: "multiWrapper",
+        type: "address",
+      },
+    ],
+    name: "MultiWrapperUpdated",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract IOracle",
+        name: "oracle",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "enum OffchainOracle.OracleType",
+        name: "oracleType",
+        type: "uint8",
+      },
+    ],
+    name: "OracleAdded",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract IOracle",
+        name: "oracle",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "enum OffchainOracle.OracleType",
+        name: "oracleType",
+        type: "uint8",
+      },
+    ],
+    name: "OracleRemoved",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "previousOwner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "OwnershipTransferred",
+    type: "event",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IERC20",
+        name: "connector",
+        type: "address",
+      },
+    ],
+    name: "addConnector",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IOracle",
+        name: "oracle",
+        type: "address",
+      },
+      {
+        internalType: "enum OffchainOracle.OracleType",
+        name: "oracleKind",
+        type: "uint8",
+      },
+    ],
+    name: "addOracle",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "connectors",
+    outputs: [
+      {
+        internalType: "contract IERC20[]",
+        name: "allConnectors",
+        type: "address[]",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IERC20",
+        name: "srcToken",
+        type: "address",
+      },
+      {
+        internalType: "contract IERC20",
+        name: "dstToken",
+        type: "address",
+      },
+      {
+        internalType: "bool",
+        name: "useWrappers",
+        type: "bool",
+      },
+    ],
+    name: "getRate",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "weightedRate",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IERC20",
+        name: "srcToken",
+        type: "address",
+      },
+      {
+        internalType: "bool",
+        name: "useSrcWrappers",
+        type: "bool",
+      },
+    ],
+    name: "getRateToEth",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "weightedRate",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "multiWrapper",
+    outputs: [
+      {
+        internalType: "contract MultiWrapper",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "oracles",
+    outputs: [
+      {
+        internalType: "contract IOracle[]",
+        name: "allOracles",
+        type: "address[]",
+      },
+      {
+        internalType: "enum OffchainOracle.OracleType[]",
+        name: "oracleTypes",
+        type: "uint8[]",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "owner",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IERC20",
+        name: "connector",
+        type: "address",
+      },
+    ],
+    name: "removeConnector",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IOracle",
+        name: "oracle",
+        type: "address",
+      },
+      {
+        internalType: "enum OffchainOracle.OracleType",
+        name: "oracleKind",
+        type: "uint8",
+      },
+    ],
+    name: "removeOracle",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "renounceOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract MultiWrapper",
+        name: "_multiWrapper",
+        type: "address",
+      },
+    ],
+    name: "setMultiWrapper",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "transferOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+] as const;
+
+export class AggregatorAbi__factory {
+  static readonly abi = _abi;
+  static createInterface(): AggregatorAbiInterface {
+    return new utils.Interface(_abi) as AggregatorAbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): AggregatorAbi {
+    return new Contract(address, _abi, signerOrProvider) as AggregatorAbi;
+  }
+}

src/contracts/factories/ERC20Abi__factory.ts

@@ -0,0 +1,277 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type { ERC20Abi, ERC20AbiInterface } from "../ERC20Abi";
+
+const _abi = [
+  {
+    constant: true,
+    inputs: [],
+    name: "totalSupply",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "_totalSupply",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "address",
+        name: "who",
+        type: "address",
+      },
+    ],
+    name: "balanceOf",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "transfer",
+    outputs: [],
+    payable: false,
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "Approval",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "from",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "Transfer",
+    type: "event",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+    ],
+    name: "allowance",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        internalType: "address",
+        name: "from",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "transferFrom",
+    outputs: [],
+    payable: false,
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "value",
+        type: "uint256",
+      },
+    ],
+    name: "approve",
+    outputs: [],
+    payable: false,
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+    ],
+    name: "nonces",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "owner",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "spender",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "amount",
+        type: "uint256",
+      },
+      {
+        internalType: "uint256",
+        name: "deadline",
+        type: "uint256",
+      },
+      {
+        internalType: "uint8",
+        name: "v",
+        type: "uint8",
+      },
+      {
+        internalType: "bytes32",
+        name: "r",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes32",
+        name: "s",
+        type: "bytes32",
+      },
+    ],
+    name: "permit",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+] as const;
+
+export class ERC20Abi__factory {
+  static readonly abi = _abi;
+  static createInterface(): ERC20AbiInterface {
+    return new utils.Interface(_abi) as ERC20AbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): ERC20Abi {
+    return new Contract(address, _abi, signerOrProvider) as ERC20Abi;
+  }
+}

src/contracts/factories/MulticallAbi__factory.ts

@@ -0,0 +1,59 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type { MulticallAbi, MulticallAbiInterface } from "../MulticallAbi";
+
+const _abi = [
+  {
+    inputs: [
+      {
+        components: [
+          {
+            internalType: "address",
+            name: "to",
+            type: "address",
+          },
+          {
+            internalType: "bytes",
+            name: "data",
+            type: "bytes",
+          },
+        ],
+        internalType: "struct MultiCall.Call[]",
+        name: "calls",
+        type: "tuple[]",
+      },
+    ],
+    name: "multicall",
+    outputs: [
+      {
+        internalType: "bytes[]",
+        name: "results",
+        type: "bytes[]",
+      },
+      {
+        internalType: "bool[]",
+        name: "success",
+        type: "bool[]",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+] as const;
+
+export class MulticallAbi__factory {
+  static readonly abi = _abi;
+  static createInterface(): MulticallAbiInterface {
+    return new utils.Interface(_abi) as MulticallAbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): MulticallAbi {
+    return new Contract(address, _abi, signerOrProvider) as MulticallAbi;
+  }
+}

src/contracts/factories/OffchainOracleAbi__factory.ts

@@ -0,0 +1,358 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type {
+  OffchainOracleAbi,
+  OffchainOracleAbiInterface,
+} from "../OffchainOracleAbi";
+
+const _abi = [
+  {
+    inputs: [
+      {
+        internalType: "contract MultiWrapper",
+        name: "_multiWrapper",
+        type: "address",
+      },
+      {
+        internalType: "contract IOracle[]",
+        name: "existingOracles",
+        type: "address[]",
+      },
+      {
+        internalType: "enum OffchainOracle.OracleType[]",
+        name: "oracleTypes",
+        type: "uint8[]",
+      },
+      {
+        internalType: "contract IERC20[]",
+        name: "existingConnectors",
+        type: "address[]",
+      },
+      {
+        internalType: "contract IERC20",
+        name: "wBase",
+        type: "address",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "constructor",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract IERC20",
+        name: "connector",
+        type: "address",
+      },
+    ],
+    name: "ConnectorAdded",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract IERC20",
+        name: "connector",
+        type: "address",
+      },
+    ],
+    name: "ConnectorRemoved",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract MultiWrapper",
+        name: "multiWrapper",
+        type: "address",
+      },
+    ],
+    name: "MultiWrapperUpdated",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract IOracle",
+        name: "oracle",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "enum OffchainOracle.OracleType",
+        name: "oracleType",
+        type: "uint8",
+      },
+    ],
+    name: "OracleAdded",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "contract IOracle",
+        name: "oracle",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "enum OffchainOracle.OracleType",
+        name: "oracleType",
+        type: "uint8",
+      },
+    ],
+    name: "OracleRemoved",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "previousOwner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "OwnershipTransferred",
+    type: "event",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IERC20",
+        name: "connector",
+        type: "address",
+      },
+    ],
+    name: "addConnector",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IOracle",
+        name: "oracle",
+        type: "address",
+      },
+      {
+        internalType: "enum OffchainOracle.OracleType",
+        name: "oracleKind",
+        type: "uint8",
+      },
+    ],
+    name: "addOracle",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "connectors",
+    outputs: [
+      {
+        internalType: "contract IERC20[]",
+        name: "allConnectors",
+        type: "address[]",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IERC20",
+        name: "srcToken",
+        type: "address",
+      },
+      {
+        internalType: "contract IERC20",
+        name: "dstToken",
+        type: "address",
+      },
+      {
+        internalType: "bool",
+        name: "useWrappers",
+        type: "bool",
+      },
+    ],
+    name: "getRate",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "weightedRate",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IERC20",
+        name: "srcToken",
+        type: "address",
+      },
+      {
+        internalType: "bool",
+        name: "useSrcWrappers",
+        type: "bool",
+      },
+    ],
+    name: "getRateToEth",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "weightedRate",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "multiWrapper",
+    outputs: [
+      {
+        internalType: "contract MultiWrapper",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "oracles",
+    outputs: [
+      {
+        internalType: "contract IOracle[]",
+        name: "allOracles",
+        type: "address[]",
+      },
+      {
+        internalType: "enum OffchainOracle.OracleType[]",
+        name: "oracleTypes",
+        type: "uint8[]",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "owner",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IERC20",
+        name: "connector",
+        type: "address",
+      },
+    ],
+    name: "removeConnector",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IOracle",
+        name: "oracle",
+        type: "address",
+      },
+      {
+        internalType: "enum OffchainOracle.OracleType",
+        name: "oracleKind",
+        type: "uint8",
+      },
+    ],
+    name: "removeOracle",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "renounceOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract MultiWrapper",
+        name: "_multiWrapper",
+        type: "address",
+      },
+    ],
+    name: "setMultiWrapper",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "transferOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+] as const;
+
+export class OffchainOracleAbi__factory {
+  static readonly abi = _abi;
+  static createInterface(): OffchainOracleAbiInterface {
+    return new utils.Interface(_abi) as OffchainOracleAbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): OffchainOracleAbi {
+    return new Contract(address, _abi, signerOrProvider) as OffchainOracleAbi;
+  }
+}

src/contracts/factories/OvmGasPriceOracleAbi__factory.ts

@@ -0,0 +1,326 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type {
+  OvmGasPriceOracleAbi,
+  OvmGasPriceOracleAbiInterface,
+} from "../OvmGasPriceOracleAbi";
+
+const _abi = [
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "_owner",
+        type: "address",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "constructor",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "DecimalsUpdated",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "GasPriceUpdated",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "L1BaseFeeUpdated",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "OverheadUpdated",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "previousOwner",
+        type: "address",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "OwnershipTransferred",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "ScalarUpdated",
+    type: "event",
+  },
+  {
+    inputs: [],
+    name: "decimals",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "gasPrice",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "bytes",
+        name: "_data",
+        type: "bytes",
+      },
+    ],
+    name: "getL1Fee",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "bytes",
+        name: "_data",
+        type: "bytes",
+      },
+    ],
+    name: "getL1GasUsed",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "l1BaseFee",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "overhead",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "owner",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "renounceOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "scalar",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "_decimals",
+        type: "uint256",
+      },
+    ],
+    name: "setDecimals",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "_gasPrice",
+        type: "uint256",
+      },
+    ],
+    name: "setGasPrice",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "_baseFee",
+        type: "uint256",
+      },
+    ],
+    name: "setL1BaseFee",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "_overhead",
+        type: "uint256",
+      },
+    ],
+    name: "setOverhead",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "_scalar",
+        type: "uint256",
+      },
+    ],
+    name: "setScalar",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "newOwner",
+        type: "address",
+      },
+    ],
+    name: "transferOwnership",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+] as const;
+
+export class OvmGasPriceOracleAbi__factory {
+  static readonly abi = _abi;
+  static createInterface(): OvmGasPriceOracleAbiInterface {
+    return new utils.Interface(_abi) as OvmGasPriceOracleAbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): OvmGasPriceOracleAbi {
+    return new Contract(
+      address,
+      _abi,
+      signerOrProvider
+    ) as OvmGasPriceOracleAbi;
+  }
+}

src/contracts/factories/ProxyLightAbi__factory.ts

@@ -0,0 +1,126 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type { ProxyLightAbi, ProxyLightAbiInterface } from "../ProxyLightAbi";
+
+const _abi = [
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "address",
+        name: "sender",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "bytes",
+        name: "encryptedNote",
+        type: "bytes",
+      },
+    ],
+    name: "EncryptedNote",
+    type: "event",
+  },
+  {
+    inputs: [
+      {
+        internalType: "bytes[]",
+        name: "_encryptedNotes",
+        type: "bytes[]",
+      },
+    ],
+    name: "backupNotes",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract ITornadoInstance",
+        name: "_tornado",
+        type: "address",
+      },
+      {
+        internalType: "bytes32",
+        name: "_commitment",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes",
+        name: "_encryptedNote",
+        type: "bytes",
+      },
+    ],
+    name: "deposit",
+    outputs: [],
+    stateMutability: "payable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract ITornadoInstance",
+        name: "_tornado",
+        type: "address",
+      },
+      {
+        internalType: "bytes",
+        name: "_proof",
+        type: "bytes",
+      },
+      {
+        internalType: "bytes32",
+        name: "_root",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes32",
+        name: "_nullifierHash",
+        type: "bytes32",
+      },
+      {
+        internalType: "address payable",
+        name: "_recipient",
+        type: "address",
+      },
+      {
+        internalType: "address payable",
+        name: "_relayer",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "_fee",
+        type: "uint256",
+      },
+      {
+        internalType: "uint256",
+        name: "_refund",
+        type: "uint256",
+      },
+    ],
+    name: "withdraw",
+    outputs: [],
+    stateMutability: "payable",
+    type: "function",
+  },
+] as const;
+
+export class ProxyLightAbi__factory {
+  static readonly abi = _abi;
+  static createInterface(): ProxyLightAbiInterface {
+    return new utils.Interface(_abi) as ProxyLightAbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): ProxyLightAbi {
+    return new Contract(address, _abi, signerOrProvider) as ProxyLightAbi;
+  }
+}

src/contracts/factories/RelayerRegistryAbi__factory.ts

@@ -0,0 +1,694 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type {
+  RelayerRegistryAbi,
+  RelayerRegistryAbiInterface,
+} from "../RelayerRegistryAbi";
+
+const _abi = [
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "_torn",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "_governance",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "_ens",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "_staking",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "_feeManager",
+        type: "address",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "constructor",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "minStakeAmount",
+        type: "uint256",
+      },
+    ],
+    name: "MinimumStakeAmount",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+    ],
+    name: "RelayerBalanceNullified",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "bytes32",
+        name: "relayer",
+        type: "bytes32",
+      },
+      {
+        indexed: false,
+        internalType: "string",
+        name: "ensName",
+        type: "string",
+      },
+      {
+        indexed: false,
+        internalType: "address",
+        name: "relayerAddress",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "stakedAmount",
+        type: "uint256",
+      },
+    ],
+    name: "RelayerRegistered",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "address",
+        name: "tornadoRouter",
+        type: "address",
+      },
+    ],
+    name: "RouterRegistered",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "amountStakeAdded",
+        type: "uint256",
+      },
+    ],
+    name: "StakeAddedToRelayer",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "amountBurned",
+        type: "uint256",
+      },
+    ],
+    name: "StakeBurned",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "address",
+        name: "worker",
+        type: "address",
+      },
+    ],
+    name: "WorkerRegistered",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "address",
+        name: "worker",
+        type: "address",
+      },
+    ],
+    name: "WorkerUnregistered",
+    type: "event",
+  },
+  {
+    inputs: [
+      {
+        internalType: "bytes32[]",
+        name: "domains",
+        type: "bytes32[]",
+      },
+    ],
+    name: "bulkResolve",
+    outputs: [
+      {
+        internalType: "address[]",
+        name: "result",
+        type: "address[]",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "sender",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        internalType: "contract ITornadoInstance",
+        name: "pool",
+        type: "address",
+      },
+    ],
+    name: "burn",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "ens",
+    outputs: [
+      {
+        internalType: "contract IENS",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "feeManager",
+    outputs: [
+      {
+        internalType: "contract IFeeManager",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+    ],
+    name: "getRelayerBalance",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+    ],
+    name: "getRelayerEnsHash",
+    outputs: [
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "governance",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "_tornadoRouter",
+        type: "bytes32",
+      },
+    ],
+    name: "initialize",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "toResolve",
+        type: "address",
+      },
+    ],
+    name: "isRelayer",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "toResolve",
+        type: "address",
+      },
+    ],
+    name: "isRelayerRegistered",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "minStakeAmount",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+    ],
+    name: "nullifyBalance",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "string",
+        name: "ensName",
+        type: "string",
+      },
+      {
+        internalType: "uint256",
+        name: "stake",
+        type: "uint256",
+      },
+      {
+        internalType: "address[]",
+        name: "workersToRegister",
+        type: "address[]",
+      },
+    ],
+    name: "register",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "string",
+        name: "ensName",
+        type: "string",
+      },
+      {
+        internalType: "uint256",
+        name: "stake",
+        type: "uint256",
+      },
+      {
+        internalType: "address[]",
+        name: "workersToRegister",
+        type: "address[]",
+      },
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "deadline",
+        type: "uint256",
+      },
+      {
+        internalType: "uint8",
+        name: "v",
+        type: "uint8",
+      },
+      {
+        internalType: "bytes32",
+        name: "r",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes32",
+        name: "s",
+        type: "bytes32",
+      },
+    ],
+    name: "registerPermit",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        internalType: "address",
+        name: "worker",
+        type: "address",
+      },
+    ],
+    name: "registerWorker",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    name: "relayers",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "balance",
+        type: "uint256",
+      },
+      {
+        internalType: "bytes32",
+        name: "ensHash",
+        type: "bytes32",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "node",
+        type: "bytes32",
+      },
+    ],
+    name: "resolve",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "minAmount",
+        type: "uint256",
+      },
+    ],
+    name: "setMinStakeAmount",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "tornadoRouterAddress",
+        type: "address",
+      },
+    ],
+    name: "setTornadoRouter",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "stake",
+        type: "uint256",
+      },
+    ],
+    name: "stakeToRelayer",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "stake",
+        type: "uint256",
+      },
+      {
+        internalType: "address",
+        name: "staker",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "deadline",
+        type: "uint256",
+      },
+      {
+        internalType: "uint8",
+        name: "v",
+        type: "uint8",
+      },
+      {
+        internalType: "bytes32",
+        name: "r",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes32",
+        name: "s",
+        type: "bytes32",
+      },
+    ],
+    name: "stakeToRelayerPermit",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "staking",
+    outputs: [
+      {
+        internalType: "contract TornadoStakingRewards",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "torn",
+    outputs: [
+      {
+        internalType: "contract TORN",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "tornadoRouter",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "worker",
+        type: "address",
+      },
+    ],
+    name: "unregisterWorker",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    name: "workers",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+] as const;
+
+export class RelayerRegistryAbi__factory {
+  static readonly abi = _abi;
+  static createInterface(): RelayerRegistryAbiInterface {
+    return new utils.Interface(_abi) as RelayerRegistryAbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): RelayerRegistryAbi {
+    return new Contract(address, _abi, signerOrProvider) as RelayerRegistryAbi;
+  }
+}

src/contracts/factories/TornadoInstanceAbi__factory.ts

@@ -0,0 +1,522 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type {
+  TornadoInstanceAbi,
+  TornadoInstanceAbiInterface,
+} from "../TornadoInstanceAbi";
+
+const _abi = [
+  {
+    constant: false,
+    inputs: [
+      {
+        internalType: "address",
+        name: "_newOperator",
+        type: "address",
+      },
+    ],
+    name: "changeOperator",
+    outputs: [],
+    payable: false,
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+    ],
+    name: "nullifierHashes",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        internalType: "bytes",
+        name: "_proof",
+        type: "bytes",
+      },
+      {
+        internalType: "bytes32",
+        name: "_root",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes32",
+        name: "_nullifierHash",
+        type: "bytes32",
+      },
+      {
+        internalType: "address payable",
+        name: "_recipient",
+        type: "address",
+      },
+      {
+        internalType: "address payable",
+        name: "_relayer",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "_fee",
+        type: "uint256",
+      },
+      {
+        internalType: "uint256",
+        name: "_refund",
+        type: "uint256",
+      },
+    ],
+    name: "withdraw",
+    outputs: [],
+    payable: true,
+    stateMutability: "payable",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "verifier",
+    outputs: [
+      {
+        internalType: "contract IVerifier",
+        name: "",
+        type: "address",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "_left",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes32",
+        name: "_right",
+        type: "bytes32",
+      },
+    ],
+    name: "hashLeftRight",
+    outputs: [
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+    ],
+    payable: false,
+    stateMutability: "pure",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "FIELD_SIZE",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "levels",
+    outputs: [
+      {
+        internalType: "uint32",
+        name: "",
+        type: "uint32",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "operator",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "_root",
+        type: "bytes32",
+      },
+    ],
+    name: "isKnownRoot",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+    ],
+    name: "commitments",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "denomination",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "currentRootIndex",
+    outputs: [
+      {
+        internalType: "uint32",
+        name: "",
+        type: "uint32",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        internalType: "address",
+        name: "_newVerifier",
+        type: "address",
+      },
+    ],
+    name: "updateVerifier",
+    outputs: [],
+    payable: false,
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    constant: false,
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "_commitment",
+        type: "bytes32",
+      },
+    ],
+    name: "deposit",
+    outputs: [],
+    payable: true,
+    stateMutability: "payable",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "getLastRoot",
+    outputs: [
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "roots",
+    outputs: [
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "ROOT_HISTORY_SIZE",
+    outputs: [
+      {
+        internalType: "uint32",
+        name: "",
+        type: "uint32",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "_nullifierHash",
+        type: "bytes32",
+      },
+    ],
+    name: "isSpent",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "zeros",
+    outputs: [
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "ZERO_VALUE",
+    outputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [
+      {
+        internalType: "uint256",
+        name: "",
+        type: "uint256",
+      },
+    ],
+    name: "filledSubtrees",
+    outputs: [
+      {
+        internalType: "bytes32",
+        name: "",
+        type: "bytes32",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    constant: true,
+    inputs: [],
+    name: "nextIndex",
+    outputs: [
+      {
+        internalType: "uint32",
+        name: "",
+        type: "uint32",
+      },
+    ],
+    payable: false,
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract IVerifier",
+        name: "_verifier",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "_denomination",
+        type: "uint256",
+      },
+      {
+        internalType: "uint32",
+        name: "_merkleTreeHeight",
+        type: "uint32",
+      },
+      {
+        internalType: "address",
+        name: "_operator",
+        type: "address",
+      },
+    ],
+    payable: false,
+    stateMutability: "nonpayable",
+    type: "constructor",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: true,
+        internalType: "bytes32",
+        name: "commitment",
+        type: "bytes32",
+      },
+      {
+        indexed: false,
+        internalType: "uint32",
+        name: "leafIndex",
+        type: "uint32",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "timestamp",
+        type: "uint256",
+      },
+    ],
+    name: "Deposit",
+    type: "event",
+  },
+  {
+    anonymous: false,
+    inputs: [
+      {
+        indexed: false,
+        internalType: "address",
+        name: "to",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "bytes32",
+        name: "nullifierHash",
+        type: "bytes32",
+      },
+      {
+        indexed: true,
+        internalType: "address",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        indexed: false,
+        internalType: "uint256",
+        name: "fee",
+        type: "uint256",
+      },
+    ],
+    name: "Withdrawal",
+    type: "event",
+  },
+] as const;
+
+export class TornadoInstanceAbi__factory {
+  static readonly abi = _abi;
+  static createInterface(): TornadoInstanceAbiInterface {
+    return new utils.Interface(_abi) as TornadoInstanceAbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): TornadoInstanceAbi {
+    return new Contract(address, _abi, signerOrProvider) as TornadoInstanceAbi;
+  }
+}

src/contracts/factories/TornadoProxyAbi__factory.ts

@@ -0,0 +1,195 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+
+import { Contract, Signer, utils } from "ethers";
+import type { Provider } from "@ethersproject/providers";
+import type {
+  TornadoProxyAbi,
+  TornadoProxyAbiInterface,
+} from "../TornadoProxyAbi";
+
+const _abi = [
+  {
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "_tornadoTrees",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes32",
+        name: "_governance",
+        type: "bytes32",
+      },
+      {
+        internalType: "contract ITornado[]",
+        name: "_instances",
+        type: "address[]",
+      },
+    ],
+    stateMutability: "nonpayable",
+    type: "constructor",
+  },
+  {
+    inputs: [],
+    name: "governance",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract ITornado",
+        name: "",
+        type: "address",
+      },
+    ],
+    name: "instances",
+    outputs: [
+      {
+        internalType: "bool",
+        name: "",
+        type: "bool",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "bytes32",
+        name: "node",
+        type: "bytes32",
+      },
+    ],
+    name: "resolve",
+    outputs: [
+      {
+        internalType: "address",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [],
+    name: "tornadoTrees",
+    outputs: [
+      {
+        internalType: "contract ITornadoTrees",
+        name: "",
+        type: "address",
+      },
+    ],
+    stateMutability: "view",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract ITornado",
+        name: "tornado",
+        type: "address",
+      },
+      {
+        internalType: "bytes32",
+        name: "commitment",
+        type: "bytes32",
+      },
+    ],
+    name: "deposit",
+    outputs: [],
+    stateMutability: "payable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract ITornado",
+        name: "instance",
+        type: "address",
+      },
+      {
+        internalType: "bool",
+        name: "update",
+        type: "bool",
+      },
+    ],
+    name: "updateInstances",
+    outputs: [],
+    stateMutability: "nonpayable",
+    type: "function",
+  },
+  {
+    inputs: [
+      {
+        internalType: "contract ITornado",
+        name: "tornado",
+        type: "address",
+      },
+      {
+        internalType: "bytes",
+        name: "proof",
+        type: "bytes",
+      },
+      {
+        internalType: "bytes32",
+        name: "root",
+        type: "bytes32",
+      },
+      {
+        internalType: "bytes32",
+        name: "nullifierHash",
+        type: "bytes32",
+      },
+      {
+        internalType: "address payable",
+        name: "recipient",
+        type: "address",
+      },
+      {
+        internalType: "address payable",
+        name: "relayer",
+        type: "address",
+      },
+      {
+        internalType: "uint256",
+        name: "fee",
+        type: "uint256",
+      },
+      {
+        internalType: "uint256",
+        name: "refund",
+        type: "uint256",
+      },
+    ],
+    name: "withdraw",
+    outputs: [],
+    stateMutability: "payable",
+    type: "function",
+  },
+] as const;
+
+export class TornadoProxyAbi__factory {
+  static readonly abi = _abi;
+  static createInterface(): TornadoProxyAbiInterface {
+    return new utils.Interface(_abi) as TornadoProxyAbiInterface;
+  }
+  static connect(
+    address: string,
+    signerOrProvider: Signer | Provider
+  ): TornadoProxyAbi {
+    return new Contract(address, _abi, signerOrProvider) as TornadoProxyAbi;
+  }
+}

src/contracts/factories/index.ts

@@ -0,0 +1,12 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export { AggregatorAbi__factory } from "./AggregatorAbi__factory";
+export { ERC20Abi__factory } from "./ERC20Abi__factory";
+export { MulticallAbi__factory } from "./MulticallAbi__factory";
+export { OffchainOracleAbi__factory } from "./OffchainOracleAbi__factory";
+export { OvmGasPriceOracleAbi__factory } from "./OvmGasPriceOracleAbi__factory";
+export { ProxyLightAbi__factory } from "./ProxyLightAbi__factory";
+export { RelayerRegistryAbi__factory } from "./RelayerRegistryAbi__factory";
+export { TornadoInstanceAbi__factory } from "./TornadoInstanceAbi__factory";
+export { TornadoProxyAbi__factory } from "./TornadoProxyAbi__factory";

src/contracts/index.ts

@@ -0,0 +1,22 @@
+/* Autogenerated file. Do not edit manually. */
+/* tslint:disable */
+/* eslint-disable */
+export type { AggregatorAbi } from "./AggregatorAbi";
+export type { ERC20Abi } from "./ERC20Abi";
+export type { MulticallAbi } from "./MulticallAbi";
+export type { OffchainOracleAbi } from "./OffchainOracleAbi";
+export type { OvmGasPriceOracleAbi } from "./OvmGasPriceOracleAbi";
+export type { ProxyLightAbi } from "./ProxyLightAbi";
+export type { RelayerRegistryAbi } from "./RelayerRegistryAbi";
+export type { TornadoInstanceAbi } from "./TornadoInstanceAbi";
+export type { TornadoProxyAbi } from "./TornadoProxyAbi";
+export * as factories from "./factories";
+export { AggregatorAbi__factory } from "./factories/AggregatorAbi__factory";
+export { ERC20Abi__factory } from "./factories/ERC20Abi__factory";
+export { MulticallAbi__factory } from "./factories/MulticallAbi__factory";
+export { OffchainOracleAbi__factory } from "./factories/OffchainOracleAbi__factory";
+export { OvmGasPriceOracleAbi__factory } from "./factories/OvmGasPriceOracleAbi__factory";
+export { ProxyLightAbi__factory } from "./factories/ProxyLightAbi__factory";
+export { RelayerRegistryAbi__factory } from "./factories/RelayerRegistryAbi__factory";
+export { TornadoInstanceAbi__factory } from "./factories/TornadoInstanceAbi__factory";
+export { TornadoProxyAbi__factory } from "./factories/TornadoProxyAbi__factory";

src/controller.js

@@ -1,55 +0,0 @@
-const {
-  getTornadoWithdrawInputError,
-  getMiningRewardInputError,
-  getMiningWithdrawInputError,
-} = require('./validator')
-const { postJob } = require('./queue')
-const { jobType } = require('./constants')
-
-async function tornadoWithdraw(req, res) {
-  const inputError = getTornadoWithdrawInputError(req.body)
-  if (inputError) {
-    console.log('Invalid input:', inputError)
-    return res.status(400).json({ error: inputError })
-  }
-
-  const id = await postJob({
-    type: jobType.TORNADO_WITHDRAW,
-    request: req.body,
-  })
-  return res.json({ id })
-}
-
-async function miningReward(req, res) {
-  const inputError = getMiningRewardInputError(req.body)
-  if (inputError) {
-    console.log('Invalid input:', inputError)
-    return res.status(400).json({ error: inputError })
-  }
-
-  const id = await postJob({
-    type: jobType.MINING_REWARD,
-    request: req.body,
-  })
-  return res.json({ id })
-}
-
-async function miningWithdraw(req, res) {
-  const inputError = getMiningWithdrawInputError(req.body)
-  if (inputError) {
-    console.log('Invalid input:', inputError)
-    return res.status(400).json({ error: inputError })
-  }
-
-  const id = await postJob({
-    type: jobType.MINING_WITHDRAW,
-    request: req.body,
-  })
-  return res.json({ id })
-}
-
-module.exports = {
-  tornadoWithdraw,
-  miningReward,
-  miningWithdraw,
-}

src/healthWatcher.js

@@ -1,27 +0,0 @@
-const Web3 = require('web3')
-const Redis = require('ioredis')
-const { toBN, fromWei } = require('web3-utils')
-
-const { setSafeInterval } = require('./utils')
-const { redisUrl, httpRpcUrl, privateKey, minimumBalance } = require('./config')
-
-const web3 = new Web3(httpRpcUrl)
-const redis = new Redis(redisUrl)
-
-async function main() {
-  try {
-    const { address } = web3.eth.accounts.privateKeyToAccount(privateKey)
-    const balance = await web3.eth.getBalance(address)
-
-    if (toBN(balance).lt(toBN(minimumBalance))) {
-      throw new Error(`Not enough balance, less than ${fromWei(minimumBalance)} ETH`)
-    }
-
-    await redis.hset('health', { status: true, error: '' })
-  } catch (e) {
-    console.error('healthWatcher', e.message)
-    await redis.hset('health', { status: false, error: e.message })
-  }
-}
-
-setSafeInterval(main, 30 * 1000)

src/healthWorker.ts

@@ -0,0 +1,4 @@
+import { healthWorker, priceWorker } from './queue/worker';
+
+priceWorker();
+healthWorker();

src/modules/contracts.ts

@@ -0,0 +1,52 @@
+import {
+  ERC20Abi__factory,
+  MulticallAbi__factory,
+  OffchainOracleAbi__factory,
+  OvmGasPriceOracleAbi__factory,
+  ProxyLightAbi__factory,
+  RelayerRegistryAbi__factory,
+  TornadoProxyAbi__factory,
+} from '../contracts';
+import { providers } from 'ethers';
+import {
+  mainnetRpcUrl,
+  multiCallAddress,
+  netId,
+  offchainOracleAddress,
+  oracleRpcUrl,
+  ovmGasPriceOracleContract,
+  rpcUrl,
+} from '../config';
+
+export function getProvider(isStatic = true, customRpcUrl?: string, chainId = netId) {
+  const url = customRpcUrl || rpcUrl;
+  if (isStatic) return new providers.StaticJsonRpcProvider(url, chainId);
+  else return new providers.JsonRpcProvider(url, chainId);
+}
+
+export const getTornadoProxyContract = (proxyAddress: string) => {
+  return TornadoProxyAbi__factory.connect(proxyAddress, getProvider());
+};
+export const getTornadoProxyLightContract = (proxyAddress: string) => {
+  return ProxyLightAbi__factory.connect(proxyAddress, getProvider());
+};
+
+export const getOffchainOracleContract = () => {
+  return OffchainOracleAbi__factory.connect(offchainOracleAddress, getProvider(true, oracleRpcUrl));
+};
+
+export const getMultiCallContract = () => {
+  return MulticallAbi__factory.connect(multiCallAddress, getProvider(true, mainnetRpcUrl));
+};
+
+export const getTornTokenContract = (tokenAddress: string) => {
+  return ERC20Abi__factory.connect(tokenAddress, getProvider(true, mainnetRpcUrl));
+};
+
+export const getOvmGasPriceOracle = () => {
+  return OvmGasPriceOracleAbi__factory.connect(ovmGasPriceOracleContract, getProvider());
+};
+
+export const getRelayerRegistryContract = (relayerRegistryAddress: string) => {
+  return RelayerRegistryAbi__factory.connect(relayerRegistryAddress, getProvider(true, mainnetRpcUrl));
+};

src/modules/ensResolver.ts

@@ -0,0 +1,21 @@
+import { getProvider } from './contracts';
+import { mainnetRpcUrl } from '../config';
+import { ChainIds } from '../types';
+
+const addresses = new Map<string, string>();
+
+async function resolve(domain: string) {
+  try {
+    const provider = getProvider(true, mainnetRpcUrl, ChainIds.ethereum);
+    if (!addresses.has(domain)) {
+      const resolved = await provider.resolveName(domain);
+      addresses.set(domain, resolved);
+    }
+    return addresses.get(domain);
+  } catch (e) {
+    console.log(e);
+    return null;
+  }
+}
+
+export { resolve };

src/modules/index.ts

@@ -0,0 +1,2 @@
+export { default as redisStore } from './redis';
+export { resolve } from './ensResolver';

src/modules/redis.ts

@@ -0,0 +1,35 @@
+import IORedis, { Redis } from 'ioredis';
+import { redisUrl } from '../config';
+import { container, singleton } from 'tsyringe';
+
+const getNewInstance: () => Redis = () => new IORedis(redisUrl, { maxRetriesPerRequest: null });
+
+@singleton()
+export class RedisStore {
+  get publisher(): Redis {
+    if (!this._publisher) {
+      this._publisher = getNewInstance();
+    }
+    return this._publisher;
+  }
+
+  get client() {
+    if (!this._client) {
+      this._client = getNewInstance();
+    }
+    return this._client;
+  }
+
+  get subscriber() {
+    if (!this._subscriber) {
+      this._subscriber = getNewInstance();
+    }
+    return this._subscriber;
+  }
+
+  private _subscriber: Redis;
+  private _publisher: Redis;
+  private _client: Redis;
+}
+
+export default () => container.resolve(RedisStore);

src/modules/utils.ts

@@ -0,0 +1,18 @@
+import { BigNumber, BigNumberish } from 'ethers';
+
+export const parseJSON = (str: string) => {
+  let parsed = null;
+  try {
+    parsed = JSON.parse(str);
+    if (typeof parsed === 'string') parsed = parseJSON(parsed);
+    return parsed;
+  } catch (e) {
+    return parsed;
+  }
+};
+
+export const bump = (value: BigNumberish, percent: number | BigNumber): BigNumber => {
+  const hundredPercents = BigNumber.from(100);
+
+  return BigNumber.from(value).mul(hundredPercents.add(percent)).div(hundredPercents);
+};

src/priceWatcher.js

@@ -1,47 +0,0 @@
-const Redis = require('ioredis')
-const { redisUrl, offchainOracleAddress, oracleRpcUrl } = require('./config')
-const { getArgsForOracle, setSafeInterval } = require('./utils')
-const { toChecksumAddress } = require('web3-utils')
-const redis = new Redis(redisUrl)
-const Web3 = require('web3')
-const web3 = new Web3(
-  new Web3.providers.HttpProvider(oracleRpcUrl, {
-    timeout: 200000, // ms
-  }),
-)
-
-const offchainOracleABI = require('../abis/OffchainOracle.abi.json')
-
-const offchainOracle = new web3.eth.Contract(offchainOracleABI, offchainOracleAddress)
-const { tokenAddresses, oneUintAmount, currencyLookup } = getArgsForOracle()
-
-const { toBN } = require('web3-utils')
-
-async function main() {
-  try {
-    const ethPrices = {}
-    for (let i = 0; i < tokenAddresses.length; i++) {
-      try {
-        const isWrap =
-          toChecksumAddress(tokenAddresses[i]) ===
-          toChecksumAddress('0x5d3a536E4D6DbD6114cc1Ead35777bAB948E3643')
-
-        const price = await offchainOracle.methods.getRateToEth(tokenAddresses[i], isWrap).call()
-        const numerator = toBN(oneUintAmount[i])
-        const denominator = toBN(10).pow(toBN(18)) // eth decimals
-        const priceFormatted = toBN(price).mul(numerator).div(denominator)
-
-        ethPrices[currencyLookup[tokenAddresses[i]]] = priceFormatted.toString()
-      } catch (e) {
-        console.error('cant get price of ', tokenAddresses[i])
-      }
-    }
-
-    await redis.hmset('prices', ethPrices)
-    console.log('Wrote following prices to redis', ethPrices)
-  } catch (e) {
-    console.error('priceWatcher error', e)
-  }
-}
-
-setSafeInterval(main, 30 * 1000)

src/queue.js

@@ -1,57 +0,0 @@
-const { v4: uuid } = require('uuid')
-const Queue = require('bull')
-const Redis = require('ioredis')
-const { redisUrl } = require('./config')
-const { status } = require('./constants')
-const redis = new Redis(redisUrl)
-
-const queue = new Queue('proofs', redisUrl, {
-  lockDuration: 300000, // Key expiration time for job locks.
-  lockRenewTime: 30000, // Interval on which to acquire the job lock
-  stalledInterval: 30000, // How often check for stalled jobs (use 0 for never checking).
-  maxStalledCount: 3, // Max amount of times a stalled job will be re-processed.
-  guardInterval: 5000, // Poll interval for delayed jobs and added jobs.
-  retryProcessDelay: 5000, // delay before processing next job in case of internal error.
-  drainDelay: 5, // A timeout for when the queue is in drained state (empty waiting for jobs).
-})
-
-async function postJob({ type, request }) {
-  const id = uuid()
-
-  const job = await queue.add(
-    {
-      id,
-      type,
-      status: status.QUEUED,
-      ...request, // proof, args, ?contract
-    },
-    {
-      //removeOnComplete: true
-    },
-  )
-  await redis.set(`job:${id}`, job.id)
-  return id
-}
-
-async function getJob(uuid) {
-  const id = await redis.get(`job:${uuid}`)
-  return queue.getJobFromId(id)
-}
-
-async function getJobStatus(uuid) {
-  const job = await getJob(uuid)
-  if (!job) {
-    return null
-  }
-  return {
-    ...job.data,
-    failedReason: job.failedReason,
-  }
-}
-
-module.exports = {
-  postJob,
-  getJob,
-  getJobStatus,
-  queue,
-}

src/queue/health.processor.ts

@@ -0,0 +1,24 @@
+import { getHealthService } from '../services';
+import { HealthProcessor } from './index';
+
+export const healthProcessor: HealthProcessor = async (job) => {
+  const healthService = getHealthService();
+  try {
+    switch (job.name) {
+      case 'checkHealth': {
+        const status = await healthService.check();
+        await healthService.clearErrorCodes();
+        await healthService.setStatus({ status: true, error: '' });
+        return status;
+      }
+      case 'checkUpdate': {
+        const status = await healthService.checkUpdate();
+        return status;
+      }
+    }
+  } catch (e) {
+    await healthService.saveError(e);
+    await healthService.setStatus({ status: false, error: e.message });
+    return { error: e.message };
+  }
+};

src/queue/index.ts

@@ -0,0 +1,182 @@
+import { Processor, Queue, QueueScheduler, Worker } from 'bullmq';
+import { TransactionReceipt } from '@ethersproject/abstract-provider';
+import { JobStatus, RelayerJobType, Token } from '../types';
+import { WithdrawalData } from '../services/tx.service';
+import { priceProcessor } from './price.processor';
+import { autoInjectable } from 'tsyringe';
+import { RedisStore } from '../modules/redis';
+import { ConfigService } from '../services/config.service';
+import { relayerProcessor } from './relayer.processor';
+import { healthProcessor } from './health.processor';
+import { txJobAttempts } from '../config';
+
+type PriceJobData = Token[];
+type PriceJobReturn = number;
+
+type HealthStatusInfo = { level: 'OK' | 'CRITICAL' | 'WARN'; time: number; type: string; message: string };
+
+type HealthJobReturn =
+  | { tornStatus: HealthStatusInfo; mainStatus: HealthStatusInfo }
+  | { isUpToDate: boolean; lastVersion: string }
+  | { error: string };
+type HealthJobData = null;
+type HealthJobType = 'checkHealth' | 'checkUpdate';
+export type HealthProcessor = Processor<HealthJobData, HealthJobReturn, HealthJobType>;
+export type RelayerJobData = WithdrawalData & {
+  id: string;
+  status: JobStatus;
+  type: RelayerJobType;
+  txHash?: string;
+  confirmations?: number;
+};
+export type RelayerJobReturn = TransactionReceipt;
+
+export type RelayerProcessor = Processor<RelayerJobData, RelayerJobReturn, RelayerJobType>;
+export type PriceProcessor = Processor<PriceJobData, PriceJobReturn, 'updatePrice'>;
+
+@autoInjectable()
+export class PriceQueueHelper {
+  _queue: Queue<PriceJobData, PriceJobReturn, 'updatePrice'>;
+  _worker: Worker<PriceJobData, PriceJobReturn, 'updatePrice'>;
+  _scheduler: QueueScheduler;
+  interval = 30000;
+
+  constructor(private store?: RedisStore) {}
+
+  get queue() {
+    if (!this._queue) {
+      this._queue = new Queue<Token[], PriceJobReturn, 'updatePrice'>('price', {
+        connection: this.store.client,
+        defaultJobOptions: {
+          removeOnFail: 10,
+          removeOnComplete: 10,
+        },
+      });
+    }
+    return this._queue;
+  }
+
+  get worker() {
+    if (!this._worker) {
+      this._worker = new Worker<PriceJobData, PriceJobReturn, 'updatePrice'>('price', priceProcessor, {
+        connection: this.store.client,
+        concurrency: 1,
+      });
+    }
+    return this._worker;
+  }
+
+  get scheduler() {
+    if (!this._scheduler) {
+      this._scheduler = new QueueScheduler('price', {
+        connection: this.store.client,
+      });
+    }
+    return this._scheduler;
+  }
+
+  async addRepeatable(tokens: PriceJobData) {
+    await this.queue.add('updatePrice', tokens, {
+      repeat: {
+        every: this.interval,
+        immediately: true,
+      },
+    });
+  }
+}
+
+@autoInjectable()
+export class RelayerQueueHelper {
+  private _queue: Queue<RelayerJobData, RelayerJobReturn, RelayerJobType>;
+  private _worker: Worker<RelayerJobData, RelayerJobReturn, RelayerJobType>;
+  private _scheduler: QueueScheduler;
+
+  constructor(private store?: RedisStore, private config?: ConfigService) {}
+
+  get queue() {
+    if (!this._queue) {
+      this._queue = new Queue<RelayerJobData, RelayerJobReturn, RelayerJobType>(this.config.queueName, {
+        connection: this.store.client,
+        defaultJobOptions: {
+          stackTraceLimit: 100,
+          attempts: txJobAttempts,
+          backoff: 1000,
+        },
+      });
+    }
+    return this._queue;
+  }
+
+  get worker() {
+    if (!this._worker) {
+      this._worker = new Worker<RelayerJobData, RelayerJobReturn, RelayerJobType>(this.config.queueName, relayerProcessor, {
+        connection: this.store.client,
+        concurrency: 1,
+      });
+    }
+    return this._worker;
+  }
+
+  get scheduler() {
+    if (!this._scheduler) {
+      this._scheduler = new QueueScheduler(this.config.queueName, {
+        connection: this.store.client,
+      });
+    }
+    return this._scheduler;
+  }
+}
+
+@autoInjectable()
+export class HealthQueueHelper {
+  private _queue: Queue<HealthJobData, HealthJobReturn, HealthJobType>;
+  private _worker: Worker<HealthJobData, HealthJobReturn, HealthJobType>;
+  private _scheduler: QueueScheduler;
+  interval = 30000;
+
+  constructor(private store?: RedisStore) {}
+
+  get scheduler(): QueueScheduler {
+    if (!this._scheduler) {
+      this._scheduler = new QueueScheduler('health', {
+        connection: this.store.client,
+      });
+    }
+    return this._scheduler;
+  }
+
+  get worker() {
+    if (!this._worker) {
+      this._worker = new Worker<HealthJobData, HealthJobReturn, HealthJobType>('health', healthProcessor, {
+        connection: this.store.client,
+        concurrency: 1,
+      });
+    }
+    return this._worker;
+  }
+
+  get queue() {
+    if (!this._queue) {
+      this._queue = new Queue<HealthJobData, HealthJobReturn, HealthJobType>('health', {
+        connection: this.store.client,
+        defaultJobOptions: { stackTraceLimit: 100 },
+      });
+    }
+    return this._queue;
+  }
+
+  async addRepeatable() {
+    await this.queue.add('checkHealth', null, {
+      repeat: {
+        every: this.interval,
+        immediately: true,
+      },
+    });
+    await this.queue.add('checkUpdate', null, {
+      repeat: {
+        every: this.interval * 2 * 60, // once per hour
+        immediately: true,
+      },
+    });
+  }
+}

src/queue/price.processor.ts

@@ -0,0 +1,9 @@
+import { getPriceService } from '../services';
+import { PriceProcessor } from './index';
+
+export const priceProcessor: PriceProcessor = async (job) => {
+  const priceService = getPriceService();
+  const result = await priceService.fetchPrices(job.data);
+  if (result) return await priceService.savePrices(result);
+  return null;
+};

src/queue/relayer.processor.ts

@@ -0,0 +1,37 @@
+import { RelayerProcessor } from './index';
+import { getTxService } from '../services';
+import { JobStatus } from '../types';
+import { UnrecoverableError } from 'bullmq';
+import { ExecutionError } from '../services/tx.service';
+import { txJobAttempts } from '../config';
+
+class RevertError extends UnrecoverableError {
+  code: string;
+
+  constructor(message: string, code: string) {
+    super(message);
+    this.name = this.constructor.name;
+    this.code = code;
+    Object.setPrototypeOf(this, new.target.prototype);
+  }
+}
+
+export const relayerProcessor: RelayerProcessor = async (job) => {
+  try {
+    await job.update({ ...job.data, status: JobStatus.ACCEPTED });
+    console.log(`Start processing a new ${job.data.type} job ${job.id}`);
+    const txService = getTxService();
+    txService.currentJob = job;
+    const withdrawalData = job.data;
+    const txData = await txService.prepareTxData(withdrawalData);
+    await txService.checkTornadoFee(withdrawalData, txData);
+    return await txService.sendTx(txData);
+  } catch (e) {
+    if ((e instanceof ExecutionError && e.code === 'REVERTED') || job.attemptsMade === txJobAttempts) {
+      await job.update({ ...job.data, status: JobStatus.FAILED });
+      throw new RevertError(e.message, e.code);
+    }
+    await job.update({ ...job.data, status: JobStatus.RESUBMITTED });
+    throw e;
+  }
+};

src/queue/worker.ts

@@ -0,0 +1,49 @@
+import 'reflect-metadata';
+import { HealthQueueHelper, PriceQueueHelper, RelayerQueueHelper } from './';
+import { configService, getHealthService } from '../services';
+
+export const priceWorker = async () => {
+  await configService.init();
+  if (configService.isLightMode) return;
+  const healthService = getHealthService();
+
+  const price = new PriceQueueHelper();
+  console.log(price.queue.name, 'worker started');
+
+  price.scheduler.on('stalled', (jobId, prev) => console.log({ jobId, prev }));
+  price.worker.on('active', () => console.log('worker active'));
+  price.worker.on('completed', async (job, result) => {
+    console.log(`Job ${job.name} completed with result: `, result);
+  });
+  price.worker.on('failed', (job, error) => healthService.saveError(error));
+};
+
+export const relayerWorker = async () => {
+  await configService.init();
+  const relayer = new RelayerQueueHelper();
+  const healthService = getHealthService();
+  console.log(relayer.queue.name, 'worker started');
+
+  relayer.worker.on('completed', (job, result) => {
+    console.log(`Job ${job.id} completed with result: `, result);
+  });
+  relayer.worker.on('failed', (job, error) => {
+    healthService.saveError(error, job.id);
+    console.log(`Failed job ${job.id}: `, error);
+  });
+  relayer.scheduler.on('stalled', (jobId, prev) => console.log({ jobId, prev }));
+};
+
+export const healthWorker = async () => {
+  await configService.init();
+  const health = new HealthQueueHelper();
+  console.log(health.queue.name, 'worker started');
+
+  health.scheduler.on('stalled', (jobId, prev) => console.log({ jobId, prev }));
+  health.worker.on('completed', (job, result) => {
+    console.log(`Job ${job.name} completed with result: `, result);
+  });
+  health.worker.on('failed', (job, error) => {
+    console.log(`Failed job ${job.id}: `, error);
+  });
+};

src/resolver.js

@@ -1,30 +0,0 @@
-const { httpRpcUrl, aggregatorAddress } = require('./config')
-const Web3 = require('web3')
-const web3 = new Web3(httpRpcUrl)
-const aggregator = new web3.eth.Contract(require('../abis/Aggregator.abi.json'), aggregatorAddress)
-const ens = require('eth-ens-namehash')
-
-class ENSResolver {
-  constructor() {
-    this.addresses = {}
-  }
-
-  async resolve(domains) {
-    if (!Array.isArray(domains)) {
-      domains = [domains]
-    }
-
-    const unresolved = domains.filter(d => !this.addresses[d])
-    if (unresolved.length) {
-      const resolved = await aggregator.methods.bulkResolve(unresolved.map(ens.hash)).call()
-      for (let i = 0; i < resolved.length; i++) {
-        this.addresses[domains[i]] = resolved[i]
-      }
-    }
-
-    const addresses = domains.map(domain => this.addresses[domain])
-    return addresses.length === 1 ? addresses[0] : addresses
-  }
-}
-
-module.exports = ENSResolver

src/server.js

@@ -1,41 +0,0 @@
-const express = require('express')
-const status = require('./status')
-const controller = require('./controller')
-const { port, rewardAccount } = require('./config')
-const { version } = require('../package.json')
-const { isAddress } = require('web3-utils')
-
-const app = express()
-app.use(express.json())
-
-// Add CORS headers
-app.use((req, res, next) => {
-  res.header('Access-Control-Allow-Origin', '*')
-  res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept')
-  next()
-})
-
-// Log error to console but don't send it to the client to avoid leaking data
-app.use((err, req, res, next) => {
-  if (err) {
-    console.error(err)
-    return res.sendStatus(500)
-  }
-  next()
-})
-
-app.get('/', status.index)
-app.get('/v1/status', status.status)
-app.get('/v1/jobs/:id', status.getJob)
-app.post('/v1/tornadoWithdraw', controller.tornadoWithdraw)
-app.get('/status', status.status)
-app.post('/relay', controller.tornadoWithdraw)
-app.post('/v1/miningReward', controller.miningReward)
-app.post('/v1/miningWithdraw', controller.miningWithdraw)
-
-if (!isAddress(rewardAccount)) {
-  throw new Error('No REWARD_ACCOUNT specified')
-}
-
-app.listen(port)
-console.log(`Relayer ${version} started on port ${port}`)

src/services/config.service.ts

@@ -0,0 +1,192 @@
+import {
+  host,
+  instances,
+  mainnetRpcUrl,
+  minimumBalance,
+  minimumTornBalance,
+  netId,
+  networkConfig,
+  privateKey,
+  relayerVersion,
+  rpcUrl,
+  torn,
+  tornadoGoerliProxy,
+  tornToken,
+} from '../config';
+import { ChainIds, Token } from '../types';
+import {
+  getProvider,
+  getRelayerRegistryContract,
+  getTornadoProxyContract,
+  getTornadoProxyLightContract,
+  getTornTokenContract,
+} from '../modules/contracts';
+import { resolve } from '../modules';
+import { ERC20Abi, ProxyLightAbi, RelayerRegistryAbi, TornadoProxyAbi } from '../contracts';
+import { availableIds, netIds, NetInstances } from 'torn-token';
+import { getAddress } from 'ethers/lib/utils';
+import { BigNumber, providers, Wallet } from 'ethers';
+import { container, singleton } from 'tsyringe';
+import { FallbackGasPrices } from '@tornado/gas-price-oracle';
+import { RedisStore } from '../modules/redis';
+
+type relayerQueueName = `relayer_${availableIds}`;
+
+@singleton()
+export class ConfigService {
+  netIdKey: netIds;
+  queueName: relayerQueueName;
+  tokens: Token[];
+  private _proxyAddress: string;
+  private _proxyContract: TornadoProxyAbi | ProxyLightAbi;
+  addressMap = new Map<string, InstanceProps>();
+  isLightMode: boolean;
+  instances: NetInstances;
+  provider: providers.JsonRpcProvider;
+  mainnentProvider: providers.JsonRpcProvider;
+  wallet: Wallet;
+  public readonly netId: availableIds = netId;
+  public readonly privateKey = privateKey;
+  public readonly rpcUrl = rpcUrl;
+  isInit: boolean;
+  nativeCurrency: string;
+  fallbackGasPrices: FallbackGasPrices;
+  private _tokenAddress: string;
+  private _tokenContract: ERC20Abi;
+  private _relayerRegistryAddress: string;
+  private _relayerRegistryContract: RelayerRegistryAbi;
+  balances: {
+    MAIN: { warn: string; critical: string };
+    TORN: { warn: string; critical: string };
+  };
+  host: string;
+  version: string;
+
+  constructor(private store: RedisStore) {
+    this.netIdKey = `netId${this.netId}`;
+    this.queueName = `relayer_${this.netId}`;
+    this.version = relayerVersion;
+    this.isLightMode = ![ChainIds.ethereum, ChainIds.goerli].includes(netId);
+    this.host = host;
+    this.instances = instances[this.netIdKey];
+    this.provider = getProvider(false);
+    this.mainnentProvider = getProvider(false, mainnetRpcUrl, 1);
+    this.wallet = new Wallet(this.privateKey, this.provider);
+    this.balances = {
+      MAIN: {
+        warn: BigNumber.from(minimumBalance).mul(150).div(100).toString(),
+        critical: minimumBalance,
+      },
+      TORN: {
+        warn: BigNumber.from(minimumTornBalance).mul(2).toString(),
+        critical: minimumTornBalance,
+      },
+    };
+    this._fillInstanceMap();
+  }
+
+  get proxyContract(): TornadoProxyAbi | ProxyLightAbi {
+    return this._proxyContract;
+  }
+
+  get tokenContract(): ERC20Abi {
+    return this._tokenContract;
+  }
+
+  get relayerRegistryContract(): RelayerRegistryAbi {
+    return this._relayerRegistryContract;
+  }
+
+  private _fillInstanceMap() {
+    if (!this.instances) throw new Error('config mismatch, check your environment variables');
+    for (const [currency, { instanceAddress, symbol, decimals }] of Object.entries(this.instances)) {
+      for (const [amount, address] of Object.entries(instanceAddress)) {
+        if (address)
+          this.addressMap.set(getAddress(address), {
+            currency,
+            amount,
+            symbol,
+            decimals,
+          });
+      }
+    }
+  }
+
+  async checkNetwork() {
+    console.log('Checking network...');
+    await this.provider.getNetwork();
+    if (this.isLightMode) {
+      await this.mainnentProvider.getNetwork();
+    }
+  }
+
+  async init() {
+    try {
+      if (this.isInit) return;
+      await this.checkNetwork();
+      console.log('Initializing...');
+
+      this._tokenAddress = await resolve(torn.torn.address);
+      this._tokenContract = getTornTokenContract(this._tokenAddress);
+
+      this._relayerRegistryAddress = await resolve(torn.relayerRegistry.address);
+      this._relayerRegistryContract = getRelayerRegistryContract(this._relayerRegistryAddress);
+
+      if (this.isLightMode) {
+        this._proxyAddress = torn.tornadoProxyLight.address;
+        this._proxyContract = getTornadoProxyLightContract(this._proxyAddress);
+        const { gasPrices, nativeCurrency } = networkConfig[this.netIdKey];
+        this.nativeCurrency = nativeCurrency;
+        this.fallbackGasPrices = gasPrices;
+      } else {
+        this._proxyAddress = tornadoGoerliProxy;
+        this.nativeCurrency = 'eth';
+        if (this.netId === ChainIds.ethereum) {
+          this._proxyAddress = await resolve(torn.tornadoRouter.address);
+        }
+        this._proxyContract = getTornadoProxyContract(this._proxyAddress);
+        this.tokens = [tornToken, ...Object.values(torn.instances['netId1'])]
+          .map<Token>(
+            (el) =>
+              el.tokenAddress && {
+                address: getAddress(el.tokenAddress),
+                decimals: el.decimals,
+                symbol: el.symbol,
+              },
+          )
+          .filter(Boolean);
+      }
+      console.log(
+        'Configuration completed\n',
+        `-- netId: ${this.netId}\n`,
+        `-- rpcUrl: ${this.rpcUrl}\n`,
+        `-- relayer Address: ${this.wallet.address}\n`,
+      );
+      this.isInit = true;
+    } catch (e) {
+      console.error(`${this.constructor.name} Error:`, e.message);
+      process.exit(1);
+    }
+  }
+
+  async clearRedisState() {
+    const queueKeys = (await this.store.client.keys('bull:*')).filter((s) => s.indexOf('relayer') === -1);
+    const errorKeys = await this.store.client.keys('errors:*');
+    const alertKeys = await this.store.client.keys('alerts:*');
+    const keys = [...queueKeys, ...errorKeys, ...alertKeys];
+    if (keys.length) await this.store.client.del(keys);
+  }
+
+  getInstance(address: string) {
+    return this.addressMap.get(getAddress(address));
+  }
+}
+
+type InstanceProps = {
+  currency: string;
+  amount: string;
+  symbol: string;
+  decimals: number;
+};
+
+export default container.resolve(ConfigService);

src/services/health.service.ts

@@ -0,0 +1,164 @@
+import { autoInjectable, container } from 'tsyringe';
+import compareVersions from 'compare-versions';
+import fetch from 'node-fetch';
+import { ConfigService } from './config.service';
+import { RedisStore } from '../modules/redis';
+import { formatEther } from 'ethers/lib/utils';
+import { Levels } from './notifier.service';
+
+class RelayerError extends Error {
+  constructor(message: string, code: string) {
+    super(message);
+    this.code = code;
+  }
+
+  code: string;
+}
+
+@autoInjectable()
+export class HealthService {
+  constructor(private config: ConfigService, private store: RedisStore) {}
+
+  async clearErrorCodes() {
+    await this.store.client.del('errors:code');
+  }
+
+  private async _getErrors(): Promise<{
+    errorsLog: { message: string; score: number }[];
+    errorsCode: Record<string, number>;
+  }> {
+    const logSet = await this.store.client.zrevrange('errors:log', 0, -1, 'WITHSCORES');
+    const codeSet = await this.store.client.zrevrange('errors:code', 0, -1, 'WITHSCORES');
+
+    return {
+      errorsLog: HealthService._parseSet(logSet),
+      errorsCode: HealthService._parseSet(codeSet, 'object'),
+    };
+  }
+
+  private async _getStatus() {
+    const status = await this.store.client.hgetall('health:status');
+    if (Object.keys(status).length === 0) {
+      return { health: 'false', error: 'Service is not running' };
+    }
+    return status;
+  }
+
+  private static _parseSet(log, to = 'array', keys = ['message', 'score']) {
+    let out;
+    if (to === 'array') {
+      out = [];
+      while (log.length) {
+        const [a, b] = log.splice(0, 2);
+        out.push({ [keys[0]]: a, [keys[1]]: b });
+      }
+    } else {
+      out = {};
+      while (log.length) {
+        const [a, b] = log.splice(0, 2);
+        out[a] = Number(b);
+      }
+    }
+
+    return out;
+  }
+
+  async setStatus(status: { status: boolean; error: string }) {
+    await this.store.client.hset('health:status', status);
+  }
+
+  async getStatus() {
+    const { errorsLog, errorsCode } = await this._getErrors();
+    if (errorsCode['NETWORK_ERROR'] > 10) {
+      await this.setStatus({ status: false, error: 'Network error' });
+    }
+    const heathStatus = await this._getStatus();
+
+    return {
+      ...heathStatus,
+      errorsLog,
+      errorsCode,
+    };
+  }
+
+  async saveError(e, jobId?: string) {
+    await this.store.client.zadd('errors:code', 'INCR', 1, e.code || 'RUNTIME_ERROR');
+    await this.store.client.zadd('errors:log', 'INCR', 1, e.message);
+
+    if (e.code === 'REVERTED' || e.code === 'SEND_ERROR') {
+      const jobUrl = `${this.config.host}/v1/jobs/${jobId}`;
+      await this.pushAlert({
+        message: `${e.message} \n ${jobUrl}`,
+        type: 'REVERTED',
+        level: 'WARN',
+        time: new Date().getTime(),
+      });
+    }
+  }
+
+  async pushAlert(alert: Alert) {
+    const channel = `${this.config.netId}/user-notify`;
+    await this.store.publisher.publish(channel, JSON.stringify(alert));
+  }
+
+  private async _checkBalance(value, currency: 'MAIN' | 'TORN') {
+    let level: Levels = 'OK';
+    const type = 'BALANCE';
+    const time = new Date().getTime();
+    if (value.lt(this.config.balances[currency].critical)) {
+      level = 'CRITICAL';
+    } else if (value.lt(this.config.balances[currency].warn)) {
+      level = 'WARN';
+    }
+    const msg = { WARN: 'Please refill your balance', CRITICAL: 'Insufficient balance', OK: 'ok' };
+    const alert = {
+      type: `${type}_${currency}_${level}`,
+      message: `${msg[level]} ${formatEther(value)} ${currency === 'MAIN' ? this.config.nativeCurrency : 'torn'}`,
+      level,
+      time,
+    };
+    await this.pushAlert(alert);
+
+    return alert;
+  }
+
+  async checkUpdate() {
+    console.log('Checking version...');
+    const lastVersion =
+      (await fetch('https://api.github.com/repos/tornadocash/tornado-relayer/releases').then((res) => res.json()))[0]?.tag_name ||
+      this.config.version;
+    const isUpToDate = compareVersions(this.config.version, lastVersion) >= 0;
+    if (!isUpToDate) {
+      await this.pushAlert({
+        type: 'VERSION_UPDATE_WARN',
+        message: `New version available: ${lastVersion}`,
+        level: 'WARN',
+        time: new Date().getTime(),
+      });
+    }
+    return { isUpToDate, lastVersion };
+  }
+
+  async check() {
+    await this.config.checkNetwork();
+    const mainBalance = await this.config.wallet.getBalance();
+    const tornBalance = await this.config.relayerRegistryContract.getRelayerBalance(this.config.wallet.address);
+    const mainStatus = await this._checkBalance(mainBalance, 'MAIN');
+    const tornStatus = await this._checkBalance(tornBalance, 'TORN');
+    if (mainStatus.level === 'CRITICAL') {
+      throw new RelayerError(mainStatus.message, 'INSUFFICIENT_MAIN_BALANCE');
+    }
+    if (tornStatus.level === 'CRITICAL') {
+      throw new RelayerError(tornStatus.message, 'INSUFFICIENT_TORN_BALANCE');
+    }
+    return { mainStatus, tornStatus };
+  }
+}
+
+type Alert = {
+  type: string;
+  message: string;
+  level: Levels;
+  time?: number;
+};
+export default () => container.resolve(HealthService);

src/services/index.ts

@@ -0,0 +1,6 @@
+export { default as configService } from './config.service';
+export { default as getPriceService } from './price.service';
+export { default as getJobService } from './job.service';
+export { default as getTxService } from './tx.service';
+export { default as getNotifierService } from './notifier.service';
+export { default as getHealthService } from './health.service';

src/services/job.service.ts

@@ -0,0 +1,49 @@
+import { v4 } from 'uuid';
+import { JobStatus, RelayerJobType } from '../types';
+import { HealthQueueHelper, PriceQueueHelper, RelayerQueueHelper } from '../queue';
+import { WithdrawalData } from './tx.service';
+import { container, injectable } from 'tsyringe';
+import { ConfigService } from './config.service';
+
+@injectable()
+export class JobService {
+  constructor(
+    private price?: PriceQueueHelper,
+    private relayer?: RelayerQueueHelper,
+    private health?: HealthQueueHelper,
+    public config?: ConfigService,
+  ) {}
+
+  async postJob(type: RelayerJobType, data: WithdrawalData) {
+    const id = v4();
+
+    const job = await this.relayer.queue.add(
+      type,
+      {
+        id,
+        type,
+        status: JobStatus.QUEUED,
+        ...data,
+      },
+      { jobId: id },
+    );
+    return job.id;
+  }
+
+  async getJob(jobId: string) {
+    return await this.relayer.queue.getJob(jobId);
+  }
+
+  async getQueueCount() {
+    return await this.relayer.queue.getJobCountByTypes('active', 'waiting', 'delayed');
+  }
+
+  async setupRepeatableJobs() {
+    if (!this.config.isLightMode) {
+      await this.price.addRepeatable(this.config.tokens);
+    }
+    await this.health.addRepeatable();
+  }
+}
+
+export default () => container.resolve(JobService);

src/services/notifier.service.ts

@@ -0,0 +1,88 @@
+import { Telegram } from 'telegraf';
+import { autoInjectable, container } from 'tsyringe';
+import { RedisStore } from '../modules/redis';
+import { ExtraReplyMessage } from 'telegraf/typings/telegram-types';
+import { netId } from '../config';
+import { ConfigService } from './config.service';
+
+export type Levels = keyof typeof AlertLevel;
+
+export enum AlertLevel {
+  'INFO' = 'ℹ️️',
+  'WARN' = '⚠️',
+  'CRITICAL' = '‼️',
+  'ERROR' = '💩',
+  'OK' = '✅',
+}
+
+export enum AlertType {
+  'INSUFFICIENT_BALANCE',
+  'INSUFFICIENT_TORN_BALANCE',
+  'RPC',
+}
+
+class MockTelegram {
+  async sendMessage(chatId, text: string, extra?: ExtraReplyMessage) {
+    console.log(text, extra);
+  }
+
+  async getMe() {
+    return {
+      id: 1,
+      first_name: 'test',
+      is_bot: true,
+    };
+  }
+}
+
+@autoInjectable()
+export class NotifierService {
+  private telegram: Telegram | MockTelegram;
+  private readonly token: string;
+  private readonly chatId: string;
+  host: string;
+
+  constructor(private store: RedisStore, private config: ConfigService) {
+    this.token = process.env.TELEGRAM_NOTIFIER_BOT_TOKEN;
+    this.chatId = process.env.TELEGRAM_NOTIFIER_CHAT_ID;
+    this.telegram = this.token ? new Telegram(this.token) : new MockTelegram();
+    this.host = this.config.host;
+  }
+
+  async processAlert(message: string) {
+    const alert = JSON.parse(message);
+    const [a, b, c] = alert.type.split('_');
+    const isSent = await this.store.client.sismember('alerts:sent', `${a}_${b}_${c}`);
+    if (!isSent) {
+      if (alert.level === 'OK') {
+        this.store.client.srem('alerts:sent', ...['WARN', 'CRITICAL'].map((c) => `${a}_${b}_${c}`));
+      } else {
+        await this.send(alert.message, alert.level);
+        this.store.client.sadd('alerts:sent', alert.type);
+      }
+    }
+  }
+
+  async subscribe() {
+    const channel = `${netId}/user-notify`;
+    this.store.subscriber.subscribe(channel);
+    this.store.subscriber.on('message', async (channel, message) => {
+      await this.processAlert(<string>message);
+    });
+  }
+
+  send(message: string, level: Levels) {
+    const text = `${AlertLevel[level]} ${this.host}: ${message}`;
+    return this.telegram.sendMessage(this.chatId, text, { parse_mode: 'HTML' });
+  }
+
+  sendError(e: Error) {
+    return this.telegram.sendMessage(this.chatId, `Error: ${e}`);
+  }
+
+  check() {
+    return this.telegram.getMe();
+  }
+}
+
+export default () => container.resolve(NotifierService);

src/services/price.service.ts

@@ -0,0 +1,66 @@
+import { getMultiCallContract, getOffchainOracleContract } from '../modules/contracts';
+import { MulticallAbi, OffchainOracleAbi } from '../contracts';
+import { MultiCall } from '../contracts/MulticallAbi';
+import { BigNumber } from 'ethers';
+import { defaultAbiCoder } from 'ethers/lib/utils';
+import { Token } from '../types';
+import { container, injectable } from 'tsyringe';
+import { RedisStore } from '../modules/redis';
+
+@injectable()
+export class PriceService {
+  private oracle: OffchainOracleAbi;
+  private multiCall: MulticallAbi;
+
+  constructor(private store: RedisStore) {
+    this.oracle = getOffchainOracleContract();
+    this.multiCall = getMultiCallContract();
+  }
+
+  prepareCallData(tokens: Token[]): MultiCall.CallStruct[] {
+    return tokens.map((token) => ({
+      to: this.oracle.address,
+      data: this.oracle.interface.encodeFunctionData('getRateToEth', [token.address, true]),
+    }));
+  }
+
+  async fetchPrices(tokens: Token[]) {
+    try {
+      if (!tokens?.length) return;
+      const names = tokens.reduce((p, c) => {
+        p[c.address] = c.symbol.toLowerCase();
+        return p;
+      }, {});
+      const callData = this.prepareCallData(tokens);
+      const { results, success } = await this.multiCall.multicall(callData);
+      const prices: Record<string, string> = {};
+      for (let i = 0; i < results.length; i++) {
+        if (!success[i]) {
+          continue;
+        }
+        const decodedRate = defaultAbiCoder.decode(['uint256'], results[i]).toString();
+        const numerator = BigNumber.from(10).pow(tokens[i].decimals);
+        const denominator = BigNumber.from(10).pow(18); // eth decimals
+        const price = BigNumber.from(decodedRate).mul(numerator).div(denominator);
+        prices[names[tokens[i].address]] = price.toString();
+      }
+      return prices;
+    } catch (e) {
+      console.log(e);
+    }
+  }
+
+  async getPrice(currency: string) {
+    return this.store.client.hget('prices', currency);
+  }
+
+  async getPrices() {
+    return this.store.client.hgetall('prices');
+  }
+
+  async savePrices(prices: Record<string, string>) {
+    return this.store.client.hset('prices', prices);
+  }
+}
+
+export default () => container.resolve(PriceService);

src/services/tx.service.ts

@@ -0,0 +1,236 @@
+import { TransactionData, TxManager } from 'tx-manager';
+import { GasPriceOracle } from '@tornado/gas-price-oracle';
+import { Provider } from '@ethersproject/providers';
+import { serialize } from '@ethersproject/transactions';
+import { formatEther, parseUnits } from 'ethers/lib/utils';
+import { BigNumber, BigNumberish, BytesLike } from 'ethers';
+import { ProxyLightAbi, TornadoProxyAbi } from '../contracts';
+import { GAS_BUMP_PERCENTAGE, CONFIRMATIONS, gasLimits, MAX_GAS_PRICE, netId, tornadoServiceFee } from '../config';
+import { ChainIds, JobStatus, RelayerJobType } from '../types';
+import { PriceService } from './price.service';
+import { Job } from 'bullmq';
+import { RelayerJobData } from '../queue';
+import { ConfigService } from './config.service';
+import { container, injectable } from 'tsyringe';
+import { parseJSON, bump } from '../modules/utils';
+import { getOvmGasPriceOracle } from '../modules/contracts';
+
+export type WithdrawalData = {
+  contract: string;
+  proof: BytesLike;
+  args: [BytesLike, BytesLike, string, string, BigNumberish, BigNumberish];
+};
+
+export class ExecutionError extends Error {
+  constructor(message: string, code?: string) {
+    super(message);
+    this.code = code;
+  }
+
+  code: string;
+}
+
+@injectable()
+export class TxService {
+  set currentJob(value: Job) {
+    this._currentJob = value;
+  }
+
+  gasLimit: number;
+  txManager: TxManager;
+  tornadoProxy: TornadoProxyAbi | ProxyLightAbi;
+  oracle: GasPriceOracle;
+  provider: Provider;
+  private _currentJob: Job;
+
+  constructor(private config: ConfigService, private priceService: PriceService) {
+    const { privateKey, rpcUrl, netId } = this.config;
+    this.tornadoProxy = this.config.proxyContract;
+    this.provider = this.tornadoProxy.provider;
+    const gasPriceOracleConfig = {
+      defaultRpc: rpcUrl,
+      chainId: netId,
+      minPriority: netId === ChainIds.ethereum || ChainIds.goerli ? 2 : 0.05,
+      percentile: 5,
+      blocksCount: 20,
+      fallbackGasPrices: this.config?.fallbackGasPrices,
+    };
+    this.txManager = new TxManager({
+      privateKey,
+      rpcUrl,
+      config: { THROW_ON_REVERT: true, CONFIRMATIONS, MAX_GAS_PRICE, GAS_BUMP_PERCENTAGE },
+      gasPriceOracleConfig,
+      provider: this.provider,
+    });
+    this.oracle = new GasPriceOracle(gasPriceOracleConfig);
+
+    switch (netId) {
+      case ChainIds.ethereum:
+      case ChainIds.goerli:
+        this.gasLimit = gasLimits[RelayerJobType.WITHDRAW_WITH_EXTRA];
+        break;
+      case ChainIds.optimism:
+        this.gasLimit = gasLimits[RelayerJobType.OP_TORNADO_WITHDRAW];
+        break;
+      case ChainIds.arbitrum:
+        this.gasLimit = gasLimits[RelayerJobType.ARB_TORNADO_WITHDRAW];
+        break;
+      default:
+        this.gasLimit = gasLimits[RelayerJobType.TORNADO_WITHDRAW];
+    }
+  }
+
+  async updateJobData(data: Partial<RelayerJobData>) {
+    const updatedData = { ...this._currentJob.data, ...data };
+    console.log({ updatedData });
+    await this._currentJob.update(updatedData);
+  }
+
+  async sendTx(tx: TransactionData) {
+    try {
+      const currentTx = this.txManager.createTx(tx);
+
+      const receipt = await currentTx
+        .send()
+        .on('transactionHash', async (txHash) => {
+          console.log('Transaction sent, txHash: ', txHash);
+          await this.updateJobData({ txHash, status: JobStatus.SENT });
+        })
+        .on('mined', async (receipt) => {
+          console.log('Transaction mined in block', receipt.blockNumber);
+          await this.updateJobData({ status: JobStatus.MINED });
+        })
+        .on('confirmations', async (confirmations) => {
+          console.log('Transaction confirmations: ', confirmations);
+          await this.updateJobData({ confirmations });
+        });
+      if (receipt.status === 1) {
+        await this.updateJobData({ status: JobStatus.CONFIRMED });
+      } else {
+        throw new ExecutionError('Submitted transaction failed', 'REVERTED');
+      }
+      return receipt;
+    } catch (e) {
+      const regex = /body=("\{.*}}")/;
+      if (regex.test(e.message)) {
+        const { error } = parseJSON(regex.exec(e.message)[1]);
+        throw new ExecutionError(error.message, 'REVERTED');
+      } else throw new ExecutionError(e.message, 'SEND_ERROR');
+    }
+  }
+
+  async getGasPrice(): Promise<BigNumber> {
+    let bumpPercent: number;
+    switch (netId) {
+      case ChainIds.goerli:
+        bumpPercent = 50;
+        break;
+      case ChainIds.polygon:
+      case ChainIds.avalanche:
+      case ChainIds.xdai:
+        bumpPercent = 30;
+        break;
+      default:
+        bumpPercent = 10;
+    }
+
+    try {
+      const gasParams = await this.oracle.getTxGasParams({
+        legacySpeed: 'fast',
+        bumpPercent,
+      });
+
+      console.log(BigNumber.from(gasParams['maxFeePerGas']).toString());
+
+      return BigNumber.from(gasParams['maxFeePerGas'] || gasParams['gasPrice']);
+    } catch (e) {
+      const feeData = await this.provider.getFeeData();
+      return bump(feeData.maxFeePerGas, bumpPercent);
+    }
+  }
+
+  async estimateGasLimit(txData: TransactionData): Promise<BigNumber> {
+    try {
+      const fetchedGasLimit = await this.provider.estimateGas(txData);
+      const bumped = bump(fetchedGasLimit, 10);
+      console.log('Gas limit: ', bumped.toString());
+      return bumped;
+    } catch (e) {
+      console.log('Estimation error: ', e);
+      return BigNumber.from(this.gasLimit);
+    }
+  }
+
+  async prepareTxData(data: WithdrawalData): Promise<TransactionData> {
+    const { contract, proof, args } = data;
+    const calldata = this.tornadoProxy.interface.encodeFunctionData('withdraw', [contract, proof, ...args]);
+
+    const gasPrice = await this.getGasPrice();
+    const incompleteTxData: TransactionData = {
+      value: args[5],
+      to: this.tornadoProxy.address,
+      from: this.txManager.address, // Required to estimate relayerRegistry.burn for Ethereum Mainnet withdrawals
+      data: calldata,
+      gasLimit: this.gasLimit,
+      gasPrice: gasPrice,
+    };
+    const gasLimit = await this.estimateGasLimit(incompleteTxData);
+
+    return Object.assign(incompleteTxData, { gasLimit });
+  }
+
+  async getL1Fee(data: WithdrawalData, gasPrice: BigNumber) {
+    const { contract, proof, args } = data;
+    const ovmOracle = getOvmGasPriceOracle();
+    const calldata = this.tornadoProxy.interface.encodeFunctionData('withdraw', [contract, proof, ...args]);
+    const nonce = await this.config.wallet.getTransactionCount();
+    const tx = serialize({
+      nonce,
+      type: 0,
+      data: calldata,
+      chainId: netId,
+      value: data.args[5],
+      to: this.tornadoProxy.address,
+      gasLimit: this.gasLimit,
+      gasPrice: BigNumber.from(gasPrice),
+    });
+    return await ovmOracle.getL1Fee(tx);
+  }
+
+  async checkTornadoFee(data: WithdrawalData, txData: TransactionData) {
+    const { contract, args } = data;
+    const instance = this.config.getInstance(contract);
+    if (!instance) throw new Error('Instance not found');
+    const { currency, amount, decimals } = instance;
+    const [fee, refund] = [args[4], args[5]].map(BigNumber.from);
+    const gasPrice = BigNumber.from(txData.gasPrice);
+    let operationCost = gasPrice.mul(txData.gasLimit);
+
+    if (netId === ChainIds.optimism) {
+      const l1Fee = await this.getL1Fee(data, gasPrice);
+      operationCost = operationCost.add(l1Fee);
+    }
+
+    const serviceFee = parseUnits(amount, decimals)
+      .mul(`${tornadoServiceFee * 1e10}`)
+      .div(`${100 * 1e10}`);
+
+    let desiredFee = operationCost.add(serviceFee);
+
+    if (!this.config.isLightMode && currency !== 'eth') {
+      const ethPrice = await this.priceService.getPrice(currency);
+      const numerator = BigNumber.from(10).pow(decimals);
+      desiredFee = operationCost.add(refund).mul(numerator).div(ethPrice).add(serviceFee);
+    }
+    console.log({
+      sentFee: formatEther(fee),
+      desiredFee: formatEther(desiredFee),
+      serviceFee: formatEther(serviceFee),
+    });
+    if (fee.lt(desiredFee)) {
+      throw new Error('Provided fee is not enough. Probably it is a Gas Price spike, try to resubmit.');
+    }
+  }
+}
+
+export default () => container.resolve(TxService);

src/status.js

@@ -1,41 +0,0 @@
-const queue = require('./queue')
-const { netId, tornadoServiceFee, miningServiceFee, instances, redisUrl, rewardAccount } = require('./config')
-const { version } = require('../package.json')
-const Redis = require('ioredis')
-const redis = new Redis(redisUrl)
-
-async function status(req, res) {
-  const ethPrices = await redis.hgetall('prices')
-  const health = await redis.hgetall('health')
-
-  const { waiting: currentQueue } = await queue.queue.getJobCounts()
-
-  res.json({
-    rewardAccount,
-    instances: instances[`netId${netId}`],
-    netId,
-    ethPrices,
-    tornadoServiceFee,
-    miningServiceFee,
-    version,
-    health,
-    currentQueue,
-  })
-}
-
-function index(req, res) {
-  res.send(
-    'This is <a href=https://tornado.cash>tornado.cash</a> Relayer service. Check the <a href=/v1/status>/status</a> for settings',
-  )
-}
-
-async function getJob(req, res) {
-  const status = await queue.getJobStatus(req.params.id)
-  return status ? res.json(status) : res.status(400).json({ error: "The job doesn't exist" })
-}
-
-module.exports = {
-  status,
-  index,
-  getJob,
-}

src/treeWatcher.js

@@ -1,146 +0,0 @@
-const MerkleTree = require('fixed-merkle-tree')
-const { redisUrl, wsRpcUrl, minerMerkleTreeHeight, torn, netId } = require('./config')
-const { poseidonHash2 } = require('./utils')
-const { toBN } = require('web3-utils')
-const Redis = require('ioredis')
-const redis = new Redis(redisUrl)
-const ENSResolver = require('./resolver')
-const resolver = new ENSResolver()
-const Web3 = require('web3')
-const web3 = new Web3(
-  new Web3.providers.WebsocketProvider(wsRpcUrl, {
-    clientConfig: {
-      maxReceivedFrameSize: 100000000,
-      maxReceivedMessageSize: 100000000,
-    },
-  }),
-)
-const MinerABI = require('../abis/mining.abi.json')
-let contract
-
-// eslint-disable-next-line no-unused-vars
-let tree, eventSubscription, blockSubscription
-
-async function fetchEvents(fromBlock, toBlock) {
-  if (fromBlock <= toBlock) {
-    try {
-      return await contract.getPastEvents('NewAccount', {
-        fromBlock,
-        toBlock,
-      })
-    } catch (error) {
-      const midBlock = (fromBlock + toBlock) >> 1
-
-      if (midBlock - fromBlock < 2) {
-        throw new Error(`error fetching events: ${error.message}`)
-      }
-
-      const arr1 = await fetchEvents(fromBlock, midBlock)
-      const arr2 = await fetchEvents(midBlock + 1, toBlock)
-      return [...arr1, ...arr2]
-    }
-  }
-  return []
-}
-
-async function processNewEvent(err, event) {
-  if (err) {
-    throw new Error(`Event handler error: ${err}`)
-    // console.error(err)
-    // return
-  }
-
-  console.log(
-    `New account event
-    Index: ${event.returnValues.index}
-    Commitment: ${event.returnValues.commitment}
-    Nullifier: ${event.returnValues.nullifier}
-    EncAcc: ${event.returnValues.encryptedAccount}`,
-  )
-  const { commitment, index } = event.returnValues
-  if (tree.elements().length === Number(index)) {
-    tree.insert(toBN(commitment))
-    await updateRedis()
-  } else if (tree.elements().length === Number(index) + 1) {
-    console.log('Replacing element', index)
-    tree.update(index, toBN(commitment))
-    await updateRedis()
-  } else {
-    console.log(`Invalid element index ${index}, rebuilding tree`)
-    rebuild()
-  }
-}
-
-async function processNewBlock(err) {
-  if (err) {
-    throw new Error(`Event handler error: ${err}`)
-    // console.error(err)
-    // return
-  }
-  // what if updateRedis takes more than 15 sec?
-  await updateRedis()
-}
-
-async function updateRedis() {
-  const rootOnContract = await contract.methods.getLastAccountRoot().call()
-  if (!tree.root().eq(toBN(rootOnContract))) {
-    console.log(`Invalid tree root: ${tree.root()} != ${toBN(rootOnContract)}, rebuilding tree`)
-    rebuild()
-    return
-  }
-  const rootInRedis = await redis.get('tree:root')
-  if (!rootInRedis || !tree.root().eq(toBN(rootInRedis))) {
-    const serializedTree = JSON.stringify(tree.serialize())
-    await redis.set('tree:elements', serializedTree)
-    await redis.set('tree:root', tree.root().toString())
-    await redis.publish('treeUpdate', tree.root().toString())
-    console.log('Updated tree in redis, new root:', tree.root().toString())
-  } else {
-    console.log('Tree in redis is up to date, skipping update')
-  }
-}
-
-function rebuild() {
-  process.exit(1)
-  // await eventSubscription.unsubscribe()
-  // await blockSubscription.unsubscribe()
-  // setTimeout(init, 3000)
-}
-
-async function init() {
-  try {
-    console.log('Initializing')
-    const miner = await resolver.resolve(torn.miningV2.address)
-    contract = new web3.eth.Contract(MinerABI, miner)
-
-    const cachedEvents = require(`../cache/accounts_farmer_${netId}.json`)
-    const cachedCommitments = cachedEvents.map(e => toBN(e.commitment))
-
-    const toBlock = await web3.eth.getBlockNumber()
-    const [{ blockNumber: fromBlock }] = cachedEvents.slice(-1)
-
-    const newEvents = await fetchEvents(fromBlock + 1, toBlock)
-    const newCommitments = newEvents
-      .sort((a, b) => a.returnValues.index - b.returnValues.index)
-      .map(e => toBN(e.returnValues.commitment))
-      .filter((item, index, arr) => !index || item != arr[index - 1])
-
-    const commitments = cachedCommitments.concat(newCommitments)
-
-    tree = new MerkleTree(minerMerkleTreeHeight, commitments, { hashFunction: poseidonHash2 })
-    await updateRedis()
-    console.log(`Rebuilt tree with ${commitments.length} elements, root: ${tree.root()}`)
-
-    eventSubscription = contract.events.NewAccount({ fromBlock: toBlock + 1 }, processNewEvent)
-    blockSubscription = web3.eth.subscribe('newBlockHeaders', processNewBlock)
-  } catch (e) {
-    console.error('error on init treeWatcher', e.message)
-  }
-}
-
-init()
-
-process.on('unhandledRejection', error => {
-  console.error('Unhandled promise rejection', error)
-  process.exit(1)
-})

src/txWorker.ts

@@ -0,0 +1,3 @@
+import { relayerWorker } from './queue/worker';
+
+relayerWorker();

src/types.ts

@@ -0,0 +1,80 @@
+export enum RelayerJobType {
+  TORNADO_WITHDRAW = 'TORNADO_WITHDRAW',
+  WITHDRAW_WITH_EXTRA = 'WITHDRAW_WITH_EXTRA',
+  OP_TORNADO_WITHDRAW = 'OP_TORNADO_WITHDRAW',
+  ARB_TORNADO_WITHDRAW = 'ARB_TORNADO_WITHDRAW',
+}
+
+export enum JobStatus {
+  QUEUED = 'QUEUED',
+  ACCEPTED = 'ACCEPTED',
+  SENT = 'SENT',
+  MINED = 'MINED',
+  RESUBMITTED = 'RESUBMITTED',
+  CONFIRMED = 'CONFIRMED',
+  FAILED = 'FAILED',
+}
+
+export type Token = { address: string; decimals: number; symbol?: string };
+
+export enum ChainIds {
+  'kardia' = 0,
+  'ethereum' = 1,
+  'goerli' = 5,
+  'ubiq' = 8,
+  'optimism' = 10,
+  'songbird' = 19,
+  'elastos' = 20,
+  'cronos' = 25,
+  'rsk' = 30,
+  'telos' = 40,
+  'csc' = 52,
+  'zyx' = 55,
+  'binance' = 56,
+  'syscoin' = 57,
+  'gochain' = 60,
+  'ethclassic' = 61,
+  'okexchain' = 66,
+  'hoo' = 70,
+  'meter' = 82,
+  'tomochain' = 88,
+  'xdai' = 100,
+  'velas' = 106,
+  'thundercore' = 108,
+  'fuse' = 122,
+  'heco' = 128,
+  'polygon' = 137,
+  'xdaiarb' = 200,
+  'energyweb' = 246,
+  'fantom' = 250,
+  'hpb' = 269,
+  'boba' = 288,
+  'kucoin' = 321,
+  'shiden' = 336,
+  'theta' = 361,
+  'candle' = 534,
+  'astar' = 592,
+  'callisto' = 820,
+  'wanchain' = 888,
+  'metis' = 1088,
+  'moonbeam' = 1284,
+  'moonriver' = 1285,
+  'ronin' = 2020,
+  'ezchain' = 2612,
+  'iotex' = 4689,
+  'xlc' = 5050,
+  'nahmii' = 5551,
+  'klaytn' = 8217,
+  'smartbch' = 10000,
+  'fusion' = 32659,
+  'arbitrum' = 42161,
+  'celo' = 42220,
+  'oasis' = 42262,
+  'avalanche' = 43114,
+  'godwoken' = 71394,
+  'polis' = 333999,
+  'aurora' = 1313161554,
+  'harmony' = 1666600000,
+  'palm' = 11297108109,
+  'curio' = 836542336838601,
+}

src/utils.js

@@ -1,129 +0,0 @@
-const { instances, netId } = require('./config')
-const { poseidon } = require('circomlib')
-const { toBN, toChecksumAddress, BN } = require('web3-utils')
-
-const TOKENS = {
-  torn: {
-    tokenAddress: '0x77777FeDdddFfC19Ff86DB637967013e6C6A116C',
-    symbol: 'TORN',
-    decimals: 18,
-  },
-}
-
-const sleep = ms => new Promise(res => setTimeout(res, ms))
-
-function getInstance(address) {
-  address = toChecksumAddress(address)
-  const inst = instances[`netId${netId}`]
-  for (const currency of Object.keys(inst)) {
-    for (const amount of Object.keys(inst[currency].instanceAddress)) {
-      if (inst[currency].instanceAddress[amount] === address) {
-        return { currency, amount }
-      }
-    }
-  }
-  return null
-}
-
-const poseidonHash = items => toBN(poseidon(items).toString())
-const poseidonHash2 = (a, b) => poseidonHash([a, b])
-
-function setSafeInterval(func, interval) {
-  func()
-    .catch(console.error)
-    .finally(() => {
-      setTimeout(() => setSafeInterval(func, interval), interval)
-    })
-}
-
-/**
- * A promise that resolves when the source emits specified event
- */
-function when(source, event) {
-  return new Promise((resolve, reject) => {
-    source
-      .once(event, payload => {
-        resolve(payload)
-      })
-      .on('error', error => {
-        reject(error)
-      })
-  })
-}
-
-function getArgsForOracle() {
-  const tokens = {
-    ...instances.netId1,
-    ...TOKENS,
-  }
-  const tokenAddresses = []
-  const oneUintAmount = []
-  const currencyLookup = {}
-  Object.entries(tokens).map(([currency, data]) => {
-    if (currency !== 'eth') {
-      tokenAddresses.push(data.tokenAddress)
-      oneUintAmount.push(toBN('10').pow(toBN(data.decimals.toString())).toString())
-      currencyLookup[data.tokenAddress] = currency
-    }
-  })
-  return { tokenAddresses, oneUintAmount, currencyLookup }
-}
-
-function fromDecimals(value, decimals) {
-  value = value.toString()
-  let ether = value.toString()
-  const base = new BN('10').pow(new BN(decimals))
-  const baseLength = base.toString(10).length - 1 || 1
-
-  const negative = ether.substring(0, 1) === '-'
-  if (negative) {
-    ether = ether.substring(1)
-  }
-
-  if (ether === '.') {
-    throw new Error('[ethjs-unit] while converting number ' + value + ' to wei, invalid value')
-  }
-
-  // Split it into a whole and fractional part
-  const comps = ether.split('.')
-  if (comps.length > 2) {
-    throw new Error('[ethjs-unit] while converting number ' + value + ' to wei,  too many decimal points')
-  }
-
-  let whole = comps[0]
-  let fraction = comps[1]
-
-  if (!whole) {
-    whole = '0'
-  }
-  if (!fraction) {
-    fraction = '0'
-  }
-  if (fraction.length > baseLength) {
-    throw new Error('[ethjs-unit] while converting number ' + value + ' to wei, too many decimal places')
-  }
-
-  while (fraction.length < baseLength) {
-    fraction += '0'
-  }
-
-  whole = new BN(whole)
-  fraction = new BN(fraction)
-  let wei = whole.mul(base).add(fraction)
-
-  if (negative) {
-    wei = wei.mul(negative)
-  }
-
-  return new BN(wei.toString(10), 10)
-}
-
-module.exports = {
-  getInstance,
-  setSafeInterval,
-  poseidonHash2,
-  sleep,
-  when,
-  getArgsForOracle,
-  fromDecimals,
-}

src/validator.js

@@ -1,200 +0,0 @@
-const { isAddress, toChecksumAddress } = require('web3-utils')
-const { getInstance } = require('./utils')
-const { rewardAccount } = require('./config')
-
-const Ajv = require('ajv')
-const ajv = new Ajv({ format: 'fast' })
-
-ajv.addKeyword('isAddress', {
-  validate: (schema, data) => {
-    try {
-      return isAddress(data)
-    } catch (e) {
-      return false
-    }
-  },
-  errors: true,
-})
-
-ajv.addKeyword('isKnownContract', {
-  validate: (schema, data) => {
-    try {
-      return getInstance(data) !== null
-    } catch (e) {
-      return false
-    }
-  },
-  errors: true,
-})
-
-ajv.addKeyword('isFeeRecipient', {
-  validate: (schema, data) => {
-    try {
-      return toChecksumAddress(rewardAccount) === toChecksumAddress(data)
-    } catch (e) {
-      return false
-    }
-  },
-  errors: true,
-})
-
-const addressType = { type: 'string', pattern: '^0x[a-fA-F0-9]{40}$', isAddress: true }
-const proofType = { type: 'string', pattern: '^0x[a-fA-F0-9]{512}$' }
-const encryptedAccountType = { type: 'string', pattern: '^0x[a-fA-F0-9]{392}$' }
-const bytes32Type = { type: 'string', pattern: '^0x[a-fA-F0-9]{64}$' }
-const instanceType = { ...addressType, isKnownContract: true }
-const relayerType = { ...addressType, isFeeRecipient: true }
-
-const tornadoWithdrawSchema = {
-  type: 'object',
-  properties: {
-    proof: proofType,
-    contract: instanceType,
-    args: {
-      type: 'array',
-      maxItems: 6,
-      minItems: 6,
-      items: [bytes32Type, bytes32Type, addressType, relayerType, bytes32Type, bytes32Type],
-    },
-  },
-  additionalProperties: false,
-  required: ['proof', 'contract', 'args'],
-}
-
-const miningRewardSchema = {
-  type: 'object',
-  properties: {
-    proof: proofType,
-    args: {
-      type: 'object',
-      properties: {
-        rate: bytes32Type,
-        fee: bytes32Type,
-        instance: instanceType,
-        rewardNullifier: bytes32Type,
-        extDataHash: bytes32Type,
-        depositRoot: bytes32Type,
-        withdrawalRoot: bytes32Type,
-        extData: {
-          type: 'object',
-          properties: {
-            relayer: relayerType,
-            encryptedAccount: encryptedAccountType,
-          },
-          additionalProperties: false,
-          required: ['relayer', 'encryptedAccount'],
-        },
-        account: {
-          type: 'object',
-          properties: {
-            inputRoot: bytes32Type,
-            inputNullifierHash: bytes32Type,
-            outputRoot: bytes32Type,
-            outputPathIndices: bytes32Type,
-            outputCommitment: bytes32Type,
-          },
-          additionalProperties: false,
-          required: [
-            'inputRoot',
-            'inputNullifierHash',
-            'outputRoot',
-            'outputPathIndices',
-            'outputCommitment',
-          ],
-        },
-      },
-      additionalProperties: false,
-      required: [
-        'rate',
-        'fee',
-        'instance',
-        'rewardNullifier',
-        'extDataHash',
-        'depositRoot',
-        'withdrawalRoot',
-        'extData',
-        'account',
-      ],
-    },
-  },
-  additionalProperties: false,
-  required: ['proof', 'args'],
-}
-
-const miningWithdrawSchema = {
-  type: 'object',
-  properties: {
-    proof: proofType,
-    args: {
-      type: 'object',
-      properties: {
-        amount: bytes32Type,
-        extDataHash: bytes32Type,
-        extData: {
-          type: 'object',
-          properties: {
-            fee: bytes32Type,
-            recipient: addressType,
-            relayer: relayerType,
-            encryptedAccount: encryptedAccountType,
-          },
-          additionalProperties: false,
-          required: ['fee', 'relayer', 'encryptedAccount', 'recipient'],
-        },
-        account: {
-          type: 'object',
-          properties: {
-            inputRoot: bytes32Type,
-            inputNullifierHash: bytes32Type,
-            outputRoot: bytes32Type,
-            outputPathIndices: bytes32Type,
-            outputCommitment: bytes32Type,
-          },
-          additionalProperties: false,
-          required: [
-            'inputRoot',
-            'inputNullifierHash',
-            'outputRoot',
-            'outputPathIndices',
-            'outputCommitment',
-          ],
-        },
-      },
-      additionalProperties: false,
-      required: ['amount', 'extDataHash', 'extData', 'account'],
-    },
-  },
-  additionalProperties: false,
-  required: ['proof', 'args'],
-}
-
-const validateTornadoWithdraw = ajv.compile(tornadoWithdrawSchema)
-const validateMiningReward = ajv.compile(miningRewardSchema)
-const validateMiningWithdraw = ajv.compile(miningWithdrawSchema)
-
-function getInputError(validator, data) {
-  validator(data)
-  if (validator.errors) {
-    const error = validator.errors[0]
-    return `${error.dataPath} ${error.message}`
-  }
-  return null
-}
-
-function getTornadoWithdrawInputError(data) {
-  return getInputError(validateTornadoWithdraw, data)
-}
-
-function getMiningRewardInputError(data) {
-  return getInputError(validateMiningReward, data)
-}
-
-function getMiningWithdrawInputError(data) {
-  return getInputError(validateMiningWithdraw, data)
-}
-
-module.exports = {
-  getTornadoWithdrawInputError,
-  getMiningRewardInputError,
-  getMiningWithdrawInputError,
-}

src/worker.js

@@ -1,370 +0,0 @@
-const fs = require('fs')
-const Web3 = require('web3')
-const { toBN, toWei, fromWei, toChecksumAddress } = require('web3-utils')
-const MerkleTree = require('fixed-merkle-tree')
-const Redis = require('ioredis')
-const { GasPriceOracle } = require('gas-price-oracle')
-const { Utils, Controller } = require('tornado-anonymity-mining')
-
-const swapABI = require('../abis/swap.abi.json')
-const miningABI = require('../abis/mining.abi.json')
-const tornadoABI = require('../abis/tornadoABI.json')
-const tornadoProxyABI = require('../abis/tornadoProxyABI.json')
-const aggregatorAbi = require('../abis/Aggregator.abi.json')
-const { queue } = require('./queue')
-const { poseidonHash2, getInstance, fromDecimals, sleep } = require('./utils')
-const { jobType, status } = require('./constants')
-const {
-  torn,
-  netId,
-  redisUrl,
-  gasLimits,
-  instances,
-  privateKey,
-  httpRpcUrl,
-  oracleRpcUrl,
-  baseFeeReserve,
-  miningServiceFee,
-  tornadoServiceFee,
-  tornadoGoerliProxy,
-  governanceAddress,
-  aggregatorAddress,
-} = require('./config')
-const ENSResolver = require('./resolver')
-const resolver = new ENSResolver()
-const { TxManager } = require('tx-manager')
-
-let web3
-let currentTx
-let currentJob
-let tree
-let txManager
-let controller
-let swap
-let minerContract
-const redis = new Redis(redisUrl)
-const redisSubscribe = new Redis(redisUrl)
-const gasPriceOracle = new GasPriceOracle({ defaultRpc: oracleRpcUrl })
-
-async function fetchTree() {
-  const elements = await redis.get('tree:elements')
-  const convert = (_, val) => (typeof val === 'string' ? toBN(val) : val)
-  tree = MerkleTree.deserialize(JSON.parse(elements, convert), poseidonHash2)
-
-  if (currentTx && currentJob && ['MINING_REWARD', 'MINING_WITHDRAW'].includes(currentJob.data.type)) {
-    const { proof, args } = currentJob.data
-    if (toBN(args.account.inputRoot).eq(toBN(tree.root()))) {
-      console.log('Account root is up to date. Skipping Root Update operation...')
-      return
-    } else {
-      console.log('Account root is outdated. Starting Root Update operation...')
-    }
-
-    const update = await controller.treeUpdate(args.account.outputCommitment, tree)
-
-    const minerAddress = await resolver.resolve(torn.miningV2.address)
-    const instance = new web3.eth.Contract(miningABI, minerAddress)
-    const data =
-      currentJob.data.type === 'MINING_REWARD'
-        ? instance.methods.reward(proof, args, update.proof, update.args).encodeABI()
-        : instance.methods.withdraw(proof, args, update.proof, update.args).encodeABI()
-    await currentTx.replace({
-      to: minerAddress,
-      data,
-    })
-    console.log('replaced pending tx')
-  }
-}
-
-async function start() {
-  try {
-    web3 = new Web3(httpRpcUrl)
-    const { CONFIRMATIONS, MAX_GAS_PRICE } = process.env
-    txManager = new TxManager({
-      privateKey,
-      rpcUrl: httpRpcUrl,
-      config: {
-        CONFIRMATIONS,
-        MAX_GAS_PRICE,
-        THROW_ON_REVERT: false,
-        BASE_FEE_RESERVE_PERCENTAGE: baseFeeReserve,
-      },
-    })
-    swap = new web3.eth.Contract(swapABI, await resolver.resolve(torn.rewardSwap.address))
-    minerContract = new web3.eth.Contract(miningABI, await resolver.resolve(torn.miningV2.address))
-    redisSubscribe.subscribe('treeUpdate', fetchTree)
-    await fetchTree()
-    const provingKeys = {
-      treeUpdateCircuit: require('../keys/TreeUpdate.json'),
-      treeUpdateProvingKey: fs.readFileSync('./keys/TreeUpdate_proving_key.bin').buffer,
-    }
-    controller = new Controller({ provingKeys })
-    await controller.init()
-    queue.process(processJob)
-    console.log('Worker started')
-  } catch (e) {
-    console.error('error on start worker', e.message)
-  }
-}
-
-function checkFee({ data }) {
-  if (data.type === jobType.TORNADO_WITHDRAW) {
-    return checkTornadoFee(data)
-  }
-  return checkMiningFee(data)
-}
-
-async function getGasPrice() {
-  const block = await web3.eth.getBlock('latest')
-
-  if (block && block.baseFeePerGas) {
-    const baseFeePerGas = toBN(block.baseFeePerGas)
-    return baseFeePerGas
-  }
-
-  const { fast } = await gasPriceOracle.gasPrices()
-  const gasPrice = toBN(toWei(fast.toString(), 'gwei'))
-  return gasPrice
-}
-
-async function checkTornadoFee({ args, contract }) {
-  const { currency, amount } = getInstance(contract)
-  const { decimals } = instances[`netId${netId}`][currency]
-  const [fee, refund] = [args[4], args[5]].map(toBN)
-  const gasPrice = await getGasPrice()
-
-  const ethPrice = await redis.hget('prices', currency)
-  const expense = gasPrice.mul(toBN(gasLimits[jobType.TORNADO_WITHDRAW]))
-
-  const feePercent = toBN(fromDecimals(amount, decimals))
-    .mul(toBN(parseInt(tornadoServiceFee * 1e10)))
-    .div(toBN(1e10 * 100))
-
-  let desiredFee
-  switch (currency) {
-    case 'eth': {
-      desiredFee = expense.add(feePercent)
-      break
-    }
-    default: {
-      desiredFee = expense
-        .add(refund)
-        .mul(toBN(10 ** decimals))
-        .div(toBN(ethPrice))
-      desiredFee = desiredFee.add(feePercent)
-      break
-    }
-  }
-  console.log(
-    'sent fee, desired fee, feePercent',
-    fromWei(fee.toString()),
-    fromWei(desiredFee.toString()),
-    fromWei(feePercent.toString()),
-  )
-  if (fee.lt(desiredFee)) {
-    throw new Error('Provided fee is not enough. Probably it is a Gas Price spike, try to resubmit.')
-  }
-}
-
-async function checkMiningFee({ args }) {
-  const gasPrice = await getGasPrice()
-  const ethPrice = await redis.hget('prices', 'torn')
-  const isMiningReward = currentJob.data.type === jobType.MINING_REWARD
-  const providedFee = isMiningReward ? toBN(args.fee) : toBN(args.extData.fee)
-
-  const expense = gasPrice.mul(toBN(gasLimits[currentJob.data.type]))
-  const expenseInTorn = expense.mul(toBN(1e18)).div(toBN(ethPrice))
-  // todo make aggregator for ethPrices and rewardSwap data
-  const balance = await swap.methods.tornVirtualBalance().call()
-  const poolWeight = await swap.methods.poolWeight().call()
-  const expenseInPoints = Utils.reverseTornadoFormula({ balance, tokens: expenseInTorn, poolWeight })
-  /* eslint-disable */
-  const serviceFeePercent = isMiningReward
-    ? toBN(0)
-    : toBN(args.amount)
-        .sub(providedFee) // args.amount includes fee
-        .mul(toBN(parseInt(miningServiceFee * 1e10)))
-        .div(toBN(1e10 * 100))
-  /* eslint-enable */
-  const desiredFee = expenseInPoints.add(serviceFeePercent) // in points
-  console.log(
-    'user provided fee, desired fee, serviceFeePercent',
-    providedFee.toString(),
-    desiredFee.toString(),
-    serviceFeePercent.toString(),
-  )
-  if (toBN(providedFee).lt(desiredFee)) {
-    throw new Error('Provided fee is not enough. Probably it is a Gas Price spike, try to resubmit.')
-  }
-}
-
-async function isLatestProposalExecuted() {
-  const PROPOSAL_EXECUTED_STATUS = 5
-  const expectedProposalId = 10
-  try {
-    const aggregator = new web3.eth.Contract(aggregatorAbi, aggregatorAddress)
-    const proposals = await aggregator.methods.getAllProposals(governanceAddress).call()
-    const expectedProposal = proposals[expectedProposalId - 1]
-    return expectedProposal && Number(expectedProposal['state']) === PROPOSAL_EXECUTED_STATUS
-  } catch (e) {
-    console.error(e.message)
-    return false
-  }
-}
-
-async function getProxyContract() {
-  let proxyAddress
-  if (netId === 5) {
-    proxyAddress = tornadoGoerliProxy
-  } else {
-    const latestProposalExecuted = await isLatestProposalExecuted()
-    proxyAddress = latestProposalExecuted
-      ? await resolver.resolve(torn.tornadoRouter.address)
-      : await resolver.resolve(torn.tornadoProxy.address)
-  }
-  const contract = new web3.eth.Contract(tornadoProxyABI, proxyAddress)
-
-  return {
-    contract,
-    isOldProxy: checkOldProxy(proxyAddress),
-  }
-}
-
-function checkOldProxy(address) {
-  const OLD_PROXY = '0x905b63Fff465B9fFBF41DeA908CEb12478ec7601'
-  return toChecksumAddress(address) === toChecksumAddress(OLD_PROXY)
-}
-
-async function getTxObject({ data }) {
-  if (data.type === jobType.TORNADO_WITHDRAW) {
-    let { contract, isOldProxy } = await getProxyContract()
-
-    let calldata = contract.methods.withdraw(data.contract, data.proof, ...data.args).encodeABI()
-
-    if (isOldProxy && getInstance(data.contract).currency !== 'eth') {
-      contract = new web3.eth.Contract(tornadoABI, data.contract)
-      calldata = contract.methods.withdraw(data.proof, ...data.args).encodeABI()
-    }
-
-    return {
-      value: data.args[5],
-      to: contract._address,
-      data: calldata,
-      gasLimit: gasLimits['WITHDRAW_WITH_EXTRA'],
-    }
-  } else {
-    const method = data.type === jobType.MINING_REWARD ? 'reward' : 'withdraw'
-    const calldata = minerContract.methods[method](data.proof, data.args).encodeABI()
-    return {
-      to: minerContract._address,
-      data: calldata,
-      gasLimit: gasLimits[data.type],
-    }
-  }
-}
-
-async function isOutdatedTreeRevert(receipt, currentTx) {
-  try {
-    await web3.eth.call(currentTx.tx, receipt.blockNumber)
-    console.log('Simulated call successful')
-    return false
-  } catch (e) {
-    console.log('Decoded revert reason:', e.message)
-    return (
-      e.message.indexOf('Outdated account merkle root') !== -1 ||
-      e.message.indexOf('Outdated tree update merkle root') !== -1
-    )
-  }
-}
-
-async function processJob(job) {
-  try {
-    if (!jobType[job.data.type]) {
-      throw new Error(`Unknown job type: ${job.data.type}`)
-    }
-    currentJob = job
-    await updateStatus(status.ACCEPTED)
-    console.log(`Start processing a new ${job.data.type} job #${job.id}`)
-    await submitTx(job)
-  } catch (e) {
-    console.error('processJob', e.message)
-    await updateStatus(status.FAILED)
-    throw e
-  }
-}
-
-async function submitTx(job, retry = 0) {
-  await checkFee(job)
-  currentTx = await txManager.createTx(await getTxObject(job))
-
-  if (job.data.type !== jobType.TORNADO_WITHDRAW) {
-    await fetchTree()
-  }
-
-  try {
-    const receipt = await currentTx
-      .send()
-      .on('transactionHash', txHash => {
-        updateTxHash(txHash)
-        updateStatus(status.SENT)
-      })
-      .on('mined', receipt => {
-        console.log('Mined in block', receipt.blockNumber)
-        updateStatus(status.MINED)
-      })
-      .on('confirmations', updateConfirmations)
-
-    if (receipt.status === 1) {
-      await updateStatus(status.CONFIRMED)
-    } else {
-      if (job.data.type !== jobType.TORNADO_WITHDRAW && (await isOutdatedTreeRevert(receipt, currentTx))) {
-        if (retry < 3) {
-          await updateStatus(status.RESUBMITTED)
-          await submitTx(job, retry + 1)
-        } else {
-          throw new Error('Tree update retry limit exceeded')
-        }
-      } else {
-        throw new Error('Submitted transaction failed')
-      }
-    }
-  } catch (e) {
-    // todo this could result in duplicated error logs
-    // todo handle a case where account tree is still not up to date (wait and retry)?
-    if (
-      job.data.type !== jobType.TORNADO_WITHDRAW &&
-      (e.message.indexOf('Outdated account merkle root') !== -1 ||
-        e.message.indexOf('Outdated tree update merkle root') !== -1)
-    ) {
-      if (retry < 5) {
-        await sleep(3000)
-        console.log('Tree is still not up to date, resubmitting')
-        await submitTx(job, retry + 1)
-      } else {
-        throw new Error('Tree update retry limit exceeded')
-      }
-    } else {
-      throw new Error(`Revert by smart contract ${e.message}`)
-    }
-  }
-}
-
-async function updateTxHash(txHash) {
-  console.log(`A new successfully sent tx ${txHash}`)
-  currentJob.data.txHash = txHash
-  await currentJob.update(currentJob.data)
-}
-
-async function updateConfirmations(confirmations) {
-  console.log(`Confirmations count ${confirmations}`)
-  currentJob.data.confirmations = confirmations
-  await currentJob.update(currentJob.data)
-}
-
-async function updateStatus(status) {
-  console.log(`Job status updated ${status}`)
-  currentJob.data.status = status
-  await currentJob.update(currentJob.data)
-}
-
-start()

test/app.test.ts

@@ -0,0 +1,48 @@
+import 'reflect-metadata';
+import { test } from 'tap';
+import createServer from '../src/app/server';
+
+const withdrawData = {
+  proof:
+    '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',
+  args: [
+    '0x1579d41e5290ab5bcec9a7df16705e49b5c0b869095299196c19c5e14462c9e3',
+    '0x0cf7f49c5b35c48b9e1d43713e0b46a75977e3d10521e9ac1e4c3cd5e3da1c5d',
+    '0xbd4369dc854c5d5b79fe25492e3a3cfcb5d02da5',
+    '0x090D03d9f18e9336416A515EfC1E47dB68bC270E',
+    '0x000000000000000000000000000000000000000000000000058d15e176280000',
+    '0x0000000000000000000000000000000000000000000000000000000000000000',
+  ],
+  contract: '0x47CE0C6eD5B0Ce3d3A51fdb1C52DC66a7c3c2936',
+};
+(async () => {
+  await test('requests the "/v1/status" route', async (t) => {
+    const fastify = await createServer();
+    t.teardown(() => fastify.close());
+    await fastify.ready();
+    const response = await fastify.inject({
+      method: 'GET',
+      url: '/v1/status',
+    });
+    t.equal(response.statusCode, 200, 'returns a status code of 200');
+    t.equal(response.headers['content-type'], 'application/json; charset=utf-8');
+    t.same(response.json().health.status, 'false');
+    t.end();
+  });
+
+  await test('requests the "/v1/tornadoWithdraw" route', async (t) => {
+    const fastify = await createServer();
+    t.teardown(() => fastify.close());
+    await fastify.ready();
+    const response = await fastify.inject({
+      method: 'POST',
+      url: '/v1/tornadoWithdraw',
+      headers: { 'Content-Type': 'application/json' },
+      payload: withdrawData,
+    });
+    t.equal(response.statusCode, 200, 'returns a status code of 200');
+    t.equal(response.headers['content-type'], 'application/json; charset=utf-8');
+    t.end();
+  });
+  process.exit(0);
+})();

test/validator.js

@@ -1,151 +0,0 @@
-require('chai').should()
-
-const {
-  getTornadoWithdrawInputError,
-  getMiningRewardInputError,
-  getMiningWithdrawInputError,
-} = require('../src/validator')
-
-describe('Validator', () => {
-  describe('#getTornadoWithdrawInputError', () => {
-    it('should work', () => {
-      getTornadoWithdrawInputError(withdrawData)
-    })
-
-    it('should throw for incorrect proof', () => {
-      const malformedData = { ...withdrawData }
-      malformedData.proof = '0xbeef'
-      getTornadoWithdrawInputError(malformedData).should.be.equal(
-        '.proof should match pattern "^0x[a-fA-F0-9]{512}$"',
-      )
-    })
-
-    it('should throw something is missing', () => {
-      const malformedData = { ...withdrawData }
-      delete malformedData.proof
-      getTornadoWithdrawInputError(malformedData).should.be.equal(" should have required property 'proof'")
-      malformedData.proof = withdrawData.proof
-
-      delete malformedData.args
-      getTornadoWithdrawInputError(malformedData).should.be.equal(" should have required property 'args'")
-      malformedData.args = withdrawData.args
-
-      delete malformedData.contract
-      getTornadoWithdrawInputError(malformedData).should.be.equal(" should have required property 'contract'")
-      malformedData.contract = withdrawData.contract
-    })
-  })
-
-  describe('#getMiningRewardInputError', () => {
-    it('should work', () => {
-      getMiningRewardInputError(rewardData)
-    })
-
-    it('should throw for incorrect proof', () => {
-      const malformedData = { ...rewardData }
-      malformedData.proof = '0xbeef'
-      getMiningRewardInputError(malformedData).should.be.equal(
-        '.proof should match pattern "^0x[a-fA-F0-9]{512}$"',
-      )
-    })
-
-    it('should throw something is missing', () => {
-      const malformedData = { ...rewardData }
-      delete malformedData.proof
-      getMiningRewardInputError(malformedData).should.be.equal(" should have required property 'proof'")
-      malformedData.proof = rewardData.proof
-
-      delete malformedData.args
-      getMiningRewardInputError(malformedData).should.be.equal(" should have required property 'args'")
-      malformedData.args = rewardData.args
-    })
-  })
-
-  describe('#getMiningWithdrawInputError', () => {
-    it('should work', () => {
-      getMiningWithdrawInputError(miningWithdrawData)
-    })
-
-    it('should throw for incorrect proof', () => {
-      const malformedData = { ...miningWithdrawData }
-      malformedData.proof = '0xbeef'
-      getMiningWithdrawInputError(malformedData).should.be.equal(
-        '.proof should match pattern "^0x[a-fA-F0-9]{512}$"',
-      )
-    })
-
-    it('should throw something is missing', () => {
-      const malformedData = { ...miningWithdrawData }
-      delete malformedData.proof
-      getMiningWithdrawInputError(malformedData).should.be.equal(" should have required property 'proof'")
-      malformedData.proof = miningWithdrawData.proof
-
-      delete malformedData.args
-      getMiningWithdrawInputError(malformedData).should.be.equal(" should have required property 'args'")
-      malformedData.args = miningWithdrawData.args
-    })
-  })
-})
-
-const withdrawData = {
-  proof:
-    '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',
-  args: [
-    '0x1579d41e5290ab5bcec9a7df16705e49b5c0b869095299196c19c5e14462c9e3',
-    '0x0cf7f49c5b35c48b9e1d43713e0b46a75977e3d10521e9ac1e4c3cd5e3da1c5d',
-    '0xbd4369dc854c5d5b79fe25492e3a3cfcb5d02da5',
-    '0x0000000000000000000000000000000000000000',
-    '0x000000000000000000000000000000000000000000000000058d15e176280000',
-    '0x0000000000000000000000000000000000000000000000000000000000000000',
-  ],
-  contract: '0x47CE0C6eD5B0Ce3d3A51fdb1C52DC66a7c3c2936',
-}
-
-const rewardData = {
-  proof:
-    '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',
-  args: {
-    rate: '0x000000000000000000000000000000000000000000000000000000000000000a',
-    fee: '0x0000000000000000000000000000000000000000000000000000000000000000',
-    instance: '0x8b3f5393bA08c24cc7ff5A66a832562aAB7bC95f',
-    rewardNullifier: '0x08fdc416b85c76d246925994ae0c0df539789fd1669c45b57104907c7ef8b0b5',
-    extDataHash: '0x006c5f12c20933beab10cfffab31ea0c9d736cf9aa868ee29eed3047d4ea4c2e',
-    depositRoot: '0x0405962838a47fb25ffd75d80d53b268654a06bc1bdde7e5ad94c675c2f2f0ff',
-    withdrawalRoot: '0x1cd83f5df5dbc826fecbf6be87f05db9c9dc617a3f1b1f3a421b1335c1ff7dbf',
-    extData: {
-      relayer: '0x0000000000000000000000000000000000000000',
-      encryptedAccount:
-        '0x6a8494fca4c433ef323d03f0db3fede90c3d2c6f216d73345ffc77ceec79622f327a83c4254063a3027620c262835e335fa32c33600a70547a53b2aa311d3ff35cf943e8f9e8f321f60d4266f680e0606a5837d78deb4d74c8b4fa3e9b67414513c71b73e38995cd8d57fd08aa9e135b342cecaf4128d4cfbb26148022e7a87da8b2423440b62034be202a6a48b45baa9736def6455771b442baaf2358fc52aa6c1d14a9a452b064d280fafd69f2a3ba416c10c1d8276f1c3810c664b24e0f1eefc75d63',
-    },
-    account: {
-      inputRoot: '0x22e875e5e54d8569fb40d0c568984e87b4c97da6383d8d8a334a79e22b48fd54',
-      inputNullifierHash: '0x24be972a00e3938a58f44ea6f8ead271ecdd6ab2cab42d1910fb7190b5816188',
-      outputRoot: '0x04a3cd1e37487dcee5da51cbce4245742903262a5824aef77fb7aff84a3cb053',
-      outputPathIndices: '0x0000000000000000000000000000000000000000000000000000000000000000',
-      outputCommitment: '0x0ae58c1605312bd42fffdfc41d5e0f9a364ad458717c522bf9338068ab258601',
-    },
-  },
-}
-
-const miningWithdrawData = {
-  proof:
-    '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',
-  args: {
-    amount: '0x000000000000000000000000000000000000000000000000000000000000000f',
-    fee: '0x0000000000000000000000000000000000000000000000000000000000000000',
-    extDataHash: '0x00d95a201b89061613b5bc539bcf8fdee63a400ea80f1f5e813d6aacfee3ec67',
-    extData: {
-      recipient: '0xf17f52151ebef6c7334fad080c5704d77216b732',
-      relayer: '0x0000000000000000000000000000000000000000',
-      encryptedAccount:
-        '0x4bd7f84edab796b390181d8b1dd850c418c8b3fe41d63b9677b7b99a2fadc505dcc70df336a42847dc00fa39175d16ddfec0d80dc166282e024b5371f561467651ed94e71524fa2e365a8330b053d5cff7c3bcc3564b335fb9e74fb805a3a6e760b811db60e5d6b4e154376196c3cb61457bac6d5ea804f63208a389555cde72f40ab1b94705e728f692e699fc441504b9df34390b3992a1a1eac160dcf0df0b5c5a9ec9cd6c0c8f5f8aa11627fdf2b3bedece5836e9ca38b09d70ff7ba06702971d245d',
-    },
-    account: {
-      inputRoot: '0x1a756aeee7f7d05f276b20c8ca83150e110e1a436c2d959e501ab306420ab536',
-      inputNullifierHash: '0x0dc8ea0330171a1f868ef5f3f9f92e919d7be754846f6145c5e7819e87738e65',
-      outputRoot: '0x0d9d85371bd8c941400ae54815491799e98d1f335a9d263e41f0b81f22b55aa8',
-      outputPathIndices: '0x0000000000000000000000000000000000000000000000000000000000000001',
-      outputCommitment: '0x1ebd38a8bc53f47386687386397c8b5cefd33d55341b62a2a576b39d9bcec57c',
-    },
-  },
-}

tornado-stream.conf

@@ -0,0 +1,15 @@
+map $ssl_preread_server_name $name {
+    yourdomain.com tornado_mainnet;
+
+    default tornado_mainnet;
+}
+
+upstream tornado_mainnet {
+    server 127.0.0.1:4380;
+}
+
+server {
+    listen 0.0.0.0:443;
+    proxy_pass $name;
+    ssl_preread on;
+}

tornado.conf

@@ -0,0 +1,87 @@
+# If we receive X-Forwarded-Proto, pass it through; otherwise, pass along the
+# scheme used to connect to this server
+map $http_x_forwarded_proto $proxy_x_forwarded_proto {
+  default $http_x_forwarded_proto;
+  ''      $scheme;
+}
+# If we receive X-Forwarded-Port, pass it through; otherwise, pass along the
+# server port the client connected to
+map $http_x_forwarded_port $proxy_x_forwarded_port {
+  default $http_x_forwarded_port;
+  ''      $server_port;
+}
+# If we receive Upgrade, set Connection to "upgrade"; otherwise, delete any
+# Connection header that may have been passed to this server
+map $http_upgrade $proxy_connection {
+  default upgrade;
+  '' close;
+}
+# Apply fix for very long server names
+server_names_hash_bucket_size 128;
+# Default dhparam
+# Set appropriate X-Forwarded-Ssl header based on $proxy_x_forwarded_proto
+map $proxy_x_forwarded_proto $proxy_x_forwarded_ssl {
+  default off;
+  https on;
+}
+gzip_types text/plain text/css application/javascript application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
+log_format vhost '$host $remote_addr - $remote_user [$time_local] '
+                 '"$request" $status $body_bytes_sent '
+                 '"$http_referer" "$http_user_agent" '
+                 '"$upstream_addr"';
+# HTTP 1.1 support
+proxy_http_version 1.1;
+proxy_buffering off;
+proxy_set_header Host $http_host;
+proxy_set_header Upgrade $http_upgrade;
+proxy_set_header Connection $proxy_connection;
+proxy_set_header X-Real-IP $remote_addr;
+proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+proxy_set_header X-Forwarded-Proto $proxy_x_forwarded_proto;
+proxy_set_header X-Forwarded-Ssl $proxy_x_forwarded_ssl;
+proxy_set_header X-Forwarded-Port $proxy_x_forwarded_port;
+proxy_set_header X-Original-URI $request_uri;
+# Mitigate httpoxy attack (see README for details)
+proxy_set_header Proxy "";
+
+# Request rate limiting per second, 2Mb zone @ 5 requests per second
+limit_req_zone $binary_remote_addr zone=one:2m rate=5r/s;
+# Connections per IP limited to 2 
+limit_conn_zone $binary_remote_addr zone=two:2m;
+
+server {
+	server_name _; # This is just an invalid value which will never trigger on a real hostname.
+	server_tokens off;
+	listen 80;
+	access_log /var/log/nginx/access.log vhost;
+	return 503;
+}
+
+server {
+	server_name yourdomain.com;
+
+	# Connection timeouts
+	client_body_timeout 10s;
+  client_header_timeout 10s;
+
+	listen 80;
+	access_log /var/log/nginx/access.log vhost;
+
+	# Do not HTTPS redirect LetsEncrypt ACME challenge
+	location ^~ /.well-known/acme-challenge/ {
+    limit_req zone=one;
+    limit_conn two 1;
+
+    proxy_pass http://127.0.0.1:8000;
+
+		break;
+	}
+
+	location / {
+	  limit_req zone=one;
+    limit_conn two 1;
+
+		return 301 https://$host$request_uri;
+	}
+
+}

tsconfig.json

@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "lib": ["es6", "es2020"],
+    "target": "es2020",
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "outDir": "./build",
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "allowSyntheticDefaultImports": true,
+    "esModuleInterop": true,
+    "resolveJsonModule": true
+  },
+  "include": ["src/**/*"]
+}