temporary workaround for tokens that have transfer methods that succeed but do not transfer tokens

* support new FoT-capable methods

short-circuit modal footer rendering if no trade

improve clarity of tx modal flow

* update router address + ABI

.env

@@ -1,2 +1,2 @@
 REACT_APP_CHAIN_ID="1"
-REACT_APP_NETWORK_URL="https://mainnet.infura.io/v3/b8800ce81b8c451698081d269b86692b"
+REACT_APP_NETWORK_URL="https://mainnet.infura.io/v3/acb7e55995d04c49bfb52b7141599467"

.env.production

@@ -1,5 +1,5 @@
 REACT_APP_CHAIN_ID="1"
-REACT_APP_NETWORK_URL="https://mainnet.infura.io/v3/2acb2baa4c06402792e0c701a3697d10"
+REACT_APP_NETWORK_URL="https://mainnet.infura.io/v3/febcb10ca2754433a61e0805bc6c047d"
 REACT_APP_PORTIS_ID="c0e2bf01-4b08-4fd5-ac7b-8e26b58cd236"
 REACT_APP_FORTMATIC_KEY="pk_live_F937DF033A1666BF"
 REACT_APP_GOOGLE_ANALYTICS_ID="UA-128182339-4"

.github/workflows/release.yaml

@@ -6,6 +6,8 @@ on:
 
   # releases are triggered on changes to this file
   push:
+    branches:
+      - v2
     paths:
       - '.github/workflows/release.yaml'
 
@@ -22,7 +24,7 @@ jobs:
 
       - name: Bump version and push tag
         id: github_tag_action
-        uses: mathieudutour/github-tag-action@v4
+        uses: mathieudutour/github-tag-action@v4.5
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           release_branches: .*
@@ -55,13 +57,19 @@ jobs:
           pinata-api-key: ${{ secrets.PINATA_API_KEY }}
           pinata-secret-api-key: ${{ secrets.PINATA_API_SECRET_KEY }}
 
+      - name: Convert CIDv0 to CIDv1
+        id: convert_cidv0
+        uses: uniswap/convert-cidv0-cidv1@v1.0.0
+        with:
+          cidv0: ${{ steps.upload.outputs.hash }}
+
       - name: Update DNS with new IPFS hash
         uses: uniswap/replace-vercel-dns-records@v1.0.0
         with:
           domain: 'uniswap.org'
           subdomain: '_dnslink.app'
           record-type: 'TXT'
-          value: /ipfs/${{ steps.upload.outputs.hash }}
+          value: dnslink=/ipfs/${{ steps.upload.outputs.hash }}
           token: ${{ secrets.VERCEL_TOKEN }}
           team-name: 'uniswap'
 
@@ -74,17 +82,20 @@ jobs:
           tag_name: ${{ needs.bump_version.outputs.new_tag }}
           release_name: Release ${{ needs.bump_version.outputs.new_tag }}
           body: |
-            Release built from commit
-            [`${{ github.sha }}`](https://github.com/Uniswap/uniswap-frontend/tree/${{ github.sha }})
+            Release built from commit [`${{ github.sha }}`](https://github.com/Uniswap/uniswap-frontend/tree/${{ github.sha }})
 
-            The IPFS hash of the bundle is `${{ steps.upload.outputs.hash }}`
+            The IPFS hash of the bundle is:
+            - CIDv0: `${{ steps.upload.outputs.hash }}`
+            - CIDv1: `${{ steps.convert_cidv0.outputs.cidv1 }}`
 
             Uniswap uses [`localStorage`](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage) to store your settings.
             **Beware** that other sites you access via the _same_ IPFS gateway can read and modify your settings on Uniswap without your permission.
+            You can avoid this issue by using a subdomain IPFS gateway. The preferred gateway URLs below utilize the CIDv1 of the release in the subdomain, and are relatively safer.
 
             Preferred URLs:
+            - https://${{ steps.convert_cidv0.outputs.cidv1 }}.ipfs.dweb.link/
+            - https://${{ steps.convert_cidv0.outputs.cidv1 }}.cf-ipfs.com/
             - [ipfs://${{ steps.upload.outputs.hash }}/](ipfs://${{ steps.upload.outputs.hash }}/)
-            - https://dweb.link/ipfs/${{ steps.upload.outputs.hash }}/
 
             Other IPFS gateways:
             - https://cloudflare-ipfs.com/ipfs/${{ steps.upload.outputs.hash }}/

README.md

@@ -1,9 +1,7 @@
 # Uniswap Frontend
 
-[![Netlify Status](https://api.netlify.com/api/v1/badges/fa110555-b3c7-4eeb-b840-88a835009c62/deploy-status)](https://app.netlify.com/sites/uniswap/deploys)
 [![Tests](https://github.com/Uniswap/uniswap-frontend/workflows/Tests/badge.svg)](https://github.com/Uniswap/uniswap-frontend/actions?query=workflow%3ATests)
 [![Styled With Prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg)](https://prettier.io/)
-[![Release](https://github.com/Uniswap/uniswap-frontend/workflows/Release/badge.svg)](https://github.com/Uniswap/uniswap-frontend/actions?query=workflow%3ARelease)
 
 An open source interface for Uniswap -- a protocol for decentralized exchange of Ethereum tokens.
 
@@ -17,10 +15,9 @@ An open source interface for Uniswap -- a protocol for decentralized exchange of
 
 ## Accessing the frontend
 
-The front end is deployed to IPFS as well as to [uniswap.exchange](https://uniswap.exchange).
-
-To access the front end via IPFS, use a link from the
-[latest release](https://github.com/Uniswap/uniswap-frontend/releases/latest).
+To access the front end, use an IPFS gateway link from the
+[latest release](https://github.com/Uniswap/uniswap-frontend/releases/latest)
+or visit [uniswap.exchange](https://uniswap.exchange).
 
 ## Development
 
@@ -46,10 +43,15 @@ change `REACT_APP_NETWORK_ID` to `"{yourNetworkId}"`, and change `REACT_APP_NETW
 
 Note that the front end only works properly on testnets where both 
 [Uniswap V2](https://uniswap.org/docs/v2/smart-contracts/factory/) and 
-[eth-scan](https://github.com/MyCryptoHQ/eth-scan) are deployed.
+[multicall](https://github.com/makerdao/multicall) are deployed.
 The frontend will not work on other networks.
 
 ## Contributions
 
 **Please open all pull requests against the `v2` branch.** 
 CI checks will run against all PRs. 
+
+## Accessing Uniswap V1 interface
+
+The Uniswap V1 interface for mainnet and testnets is accessible via IPFS gateways linked 
+from the [v1.0.0 release](https://github.com/Uniswap/uniswap-frontend/releases/tag/v1.0.0).

cypress/integration/add-liquidity.test.ts

@@ -1,19 +1,19 @@
 describe('Add Liquidity', () => {
   it('loads the two correct tokens', () => {
     cy.visit('/add/0xF9bA5210F91D0474bd1e1DcDAeC4C58E359AaD85-0xc778417E063141139Fce010982780140Aa0cD5Ab')
-    cy.get('#add-liquidity-input-token0 .token-symbol-container').should('contain.text', 'MKR')
-    cy.get('#add-liquidity-input-token1 .token-symbol-container').should('contain.text', 'ETH')
+    cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'MKR')
+    cy.get('#add-liquidity-input-tokenb .token-symbol-container').should('contain.text', 'ETH')
   })
 
   it('does not crash if ETH is duplicated', () => {
     cy.visit('/add/0xc778417E063141139Fce010982780140Aa0cD5Ab-0xc778417E063141139Fce010982780140Aa0cD5Ab')
-    cy.get('#add-liquidity-input-token0 .token-symbol-container').should('contain.text', 'ETH')
-    cy.get('#add-liquidity-input-token1 .token-symbol-container').should('not.contain.text', 'ETH')
+    cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'ETH')
+    cy.get('#add-liquidity-input-tokenb .token-symbol-container').should('not.contain.text', 'ETH')
   })
 
   it('token not in storage is loaded', () => {
     cy.visit('/add/0xb290b2f9f8f108d03ff2af3ac5c8de6de31cdf6d-0xF9bA5210F91D0474bd1e1DcDAeC4C58E359AaD85')
-    cy.get('#add-liquidity-input-token0 .token-symbol-container').should('contain.text', 'SKL')
-    cy.get('#add-liquidity-input-token1 .token-symbol-container').should('contain.text', 'MKR')
+    cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'SKL')
+    cy.get('#add-liquidity-input-tokenb .token-symbol-container').should('contain.text', 'MKR')
   })
 })

cypress/integration/landing.test.ts

@@ -1,4 +1,4 @@
-import { TEST_ADDRESS_NEVER_USE } from '../support/commands'
+import { TEST_ADDRESS_NEVER_USE_SHORTENED } from '../support/commands'
 
 describe('Landing Page', () => {
   beforeEach(() => cy.visit('/'))
@@ -22,6 +22,6 @@ describe('Landing Page', () => {
 
   it('is connected', () => {
     cy.get('#web3-status-connected').click()
-    cy.get('#web3-account-identifier-row').contains(TEST_ADDRESS_NEVER_USE)
+    cy.get('#web3-account-identifier-row').contains(TEST_ADDRESS_NEVER_USE_SHORTENED)
   })
 })

cypress/integration/remove-liquidity.test.ts

@@ -1,19 +1,19 @@
 describe('Remove Liquidity', () => {
   it('loads the two correct tokens', () => {
     cy.visit('/remove/0xc778417E063141139Fce010982780140Aa0cD5Ab-0xF9bA5210F91D0474bd1e1DcDAeC4C58E359AaD85')
-    cy.get('#remove-liquidity-token0-symbol').should('contain.text', 'ETH')
-    cy.get('#remove-liquidity-token1-symbol').should('contain.text', 'MKR')
+    cy.get('#remove-liquidity-tokena-symbol').should('contain.text', 'ETH')
+    cy.get('#remove-liquidity-tokenb-symbol').should('contain.text', 'MKR')
   })
 
   it('does not crash if ETH is duplicated', () => {
     cy.visit('/remove/0xc778417E063141139Fce010982780140Aa0cD5Ab-0xc778417E063141139Fce010982780140Aa0cD5Ab')
-    cy.get('#remove-liquidity-token0-symbol').should('contain.text', 'ETH')
-    cy.get('#remove-liquidity-token1-symbol').should('not.contain.text', 'ETH')
+    cy.get('#remove-liquidity-tokena-symbol').should('contain.text', 'ETH')
+    cy.get('#remove-liquidity-tokenb-symbol').should('not.contain.text', 'ETH')
   })
 
   it('token not in storage is loaded', () => {
     cy.visit('/remove/0xb290b2f9f8f108d03ff2af3ac5c8de6de31cdf6d-0xF9bA5210F91D0474bd1e1DcDAeC4C58E359AaD85')
-    cy.get('#remove-liquidity-token0-symbol').should('contain.text', 'SKL')
-    cy.get('#remove-liquidity-token1-symbol').should('contain.text', 'MKR')
+    cy.get('#remove-liquidity-tokena-symbol').should('contain.text', 'SKL')
+    cy.get('#remove-liquidity-tokenb-symbol').should('contain.text', 'MKR')
   })
 })

cypress/support/commands.d.ts

@@ -1,5 +1,7 @@
 export const TEST_ADDRESS_NEVER_USE: string
 
+export const TEST_ADDRESS_NEVER_USE_SHORTENED: string
+
 // declare namespace Cypress {
 //   // eslint-disable-next-line @typescript-eslint/class-name-casing
 //   interface cy {

cypress/support/commands.js

@@ -14,6 +14,8 @@ const PRIVATE_KEY_TEST_NEVER_USE = '0xad20c82497421e9784f18460ad2fe84f73569068e9
 // address of the above key
 export const TEST_ADDRESS_NEVER_USE = '0x0fF2D1eFd7A57B7562b2bf27F3f37899dB27F4a5'
 
+export const TEST_ADDRESS_NEVER_USE_SHORTENED = '0x0fF2...F4a5'
+
 class CustomizedBridge extends _Eip1193Bridge {
   async sendAsync(...args) {
     console.debug('sendAsync called', ...args)
@@ -71,10 +73,9 @@ Cypress.Commands.overwrite('visit', (original, url, options) => {
     ...options,
     onBeforeLoad(win) {
       options && options.onBeforeLoad && options.onBeforeLoad(win)
-      const provider = new JsonRpcProvider('https://rinkeby.infura.io/v3/b8800ce81b8c451698081d269b86692b', 4)
+      const provider = new JsonRpcProvider('https://rinkeby.infura.io/v3/acb7e55995d04c49bfb52b7141599467', 4)
       const signer = new Wallet(PRIVATE_KEY_TEST_NEVER_USE, provider)
-      const bridge = new CustomizedBridge(signer, provider)
-      win.ethereum = bridge
+      win.ethereum = new CustomizedBridge(signer, provider)
     }
   })
 })

netlify.toml

@@ -7,6 +7,13 @@
   conditions = {Country=["BY","CU","IR","IQ","CI","LR","KP","SD","SY","ZW"]}
   headers = {Link="<https://uniswap.exchange>"}
 
+# forward migrate
+[[redirects]]
+  from = "https://migrate.uniswap.exchange/*"
+  to = "https://uniswap.exchange/migrate/v1"
+  status = 301
+  force = true
+
 # forward v2 subdomain to apex
 [[redirects]]
   from = "https://v2.uniswap.exchange/*"

package.json

@@ -13,13 +13,12 @@
     "@ethersproject/strings": "^5.0.0-beta.136",
     "@ethersproject/units": "^5.0.0-beta.132",
     "@ethersproject/wallet": "^5.0.0-beta.141",
-    "@material-ui/core": "^4.9.5",
-    "@mycrypto/eth-scan": "^2.1.0",
     "@popperjs/core": "^2.4.0",
     "@reach/dialog": "^0.10.3",
     "@reach/portal": "^0.10.3",
     "@reduxjs/toolkit": "^1.3.5",
     "@types/jest": "^25.2.1",
+    "@types/lodash.flatmap": "^4.5.6",
     "@types/node": "^13.13.5",
     "@types/qs": "^6.9.2",
     "@types/react": "^16.9.34",
@@ -34,11 +33,10 @@
     "@typescript-eslint/parser": "^2.31.0",
     "@uniswap/sdk": "^2.0.5",
     "@uniswap/v2-core": "1.0.0",
-    "@uniswap/v2-periphery": "1.0.0-beta.0",
+    "@uniswap/v2-periphery": "^1.1.0-beta.0",
     "@web3-react/core": "^6.0.9",
     "@web3-react/fortmatic-connector": "^6.0.9",
     "@web3-react/injected-connector": "^6.0.7",
-    "@web3-react/network-connector": "^6.0.9",
     "@web3-react/portis-connector": "^6.0.9",
     "@web3-react/walletconnect-connector": "^6.0.9",
     "@web3-react/walletlink-connector": "^6.0.9",
@@ -50,11 +48,11 @@
     "eslint-plugin-prettier": "^3.1.3",
     "eslint-plugin-react": "^7.19.0",
     "eslint-plugin-react-hooks": "^4.0.0",
-    "history": "^4.9.0",
     "i18next": "^15.0.9",
     "i18next-browser-languagedetector": "^3.0.1",
     "i18next-xhr-backend": "^2.0.1",
     "jazzicon": "^1.5.0",
+    "lodash.flatmap": "^4.5.0",
     "polished": "^3.3.2",
     "prettier": "^1.17.0",
     "qrcode.react": "^0.9.3",
@@ -77,7 +75,6 @@
     "serve": "^11.3.0",
     "start-server-and-test": "^1.11.0",
     "styled-components": "^4.2.0",
-    "swr": "0.1.18",
     "typescript": "^3.8.3",
     "use-media": "^1.4.0"
   },

public/locales/he.json

@@ -0,0 +1,75 @@
+{
+  "noWallet": "לא נמצא ארנק",
+  "wrongNetwork": "נבחרה רשת לא נכונה",
+  "switchNetwork": "{{ correctNetwork }} יש צורך לשנות את הרשת ל",
+  "installWeb3MobileBrowser": "יש צורך בארנק ווב3.0, תתקין מטאמאסק או ארנק דומה",
+  "installMetamask": " Metamask יש צורך להתקין תוסף מטאמאסק לדפדפן, חפשו בגוגל ",
+  "disconnected": "מנותק",
+  "swap": "המרה",
+  "send": "שליחה",
+  "pool": "להפקיד",
+  "betaWarning": "הפרויקט נמצא בשלב בטא, השתמשו באחריות",
+  "input": "מוכר",
+  "output": "אקבל",
+  "estimated": "הערכה",
+  "balance": "בארנק שלי {{ balanceInput }}",
+  "unlock": "שחרור נעילת ארנק",
+  "pending": "ממתין לאישור",
+  "selectToken": "בחרו את הטוקן להמרה",
+  "searchOrPaste": "הכניסו שם או כתובת של טוקן לחיפוש",
+  "noExchange": "לא מתאפשרת המרה",
+  "exchangeRate": "שער המרה",
+  "enterValueCont": "כדי להמשיך {{ missingCurrencyValue }} הזינו ",
+  "selectTokenCont": "בחרו טוקן כדי להמשיך",
+  "noLiquidity": "אין נזילות",
+  "unlockTokenCont": "יש צורך לאשר את הטוקן למסחר",
+  "transactionDetails": "פרטי הטרנזקציה",
+  "hideDetails": "הסתר פרטים נוספים",
+  "youAreSelling": "למכירה",
+  "orTransFail": "או שהטרנזקציה תיכשל",
+  "youWillReceive": "תוצר המרה מינימלי",
+  "youAreBuying": "קונה",
+  "itWillCost": "זה יעלה",
+  "insufficientBalance": "אין בחשבון מספיק מטבעות",
+  "inputNotValid": "קלט לא תקין",
+  "differentToken": "יש צורך בטוקנים שונים",
+  "noRecipient": "לא הוכנסה כתובת ארנק יעד",
+  "invalidRecipient": "לא הוכנסה כתובת תקינה",
+  "recipientAddress": "כתובת יעד",
+  "youAreSending": "כמות לשליחה",
+  "willReceive": "יתקבל לכל הפחות",
+  "to": "אל",
+  "addLiquidity": "להוספת נזילות למאגר",
+  "deposit": "הפקדה",
+  "currentPoolSize": "גודל מאגר הנזילות הכולל",
+  "yourPoolShare": "חלקך במאגר הנזילות",
+  "noZero": "אפס אינו ערך תקין",
+  "mustBeETH": "ETH חייב להופיע באחד מהצדדים",
+  "enterCurrencyOrLabelCont": "כדי להמשיך {{ inputCurrency }} או {{ label }} הכנס",
+  "youAreAdding": "מתווספים למאגר",
+  "and": "וגם",
+  "intoPool": "לתוך הנזילות",
+  "outPool": "מתוך",
+  "youWillMint": "יונפקו לכם",
+  "liquidityTokens": "טוקנים של נזילות",
+  "totalSupplyIs": "חלקך במאגר הנזילות",
+  "youAreSettingExRate": "שער ההמרה יקבע על ידך",
+  "totalSupplyIs0": "אין לך טוקנים של נזילות",
+  "tokenWorth": "שווי כל טוקן נזילות הינו",
+  "firstLiquidity": "את\ה הראשון\ה שמזרים נזילות למאגר",
+  "initialExchangeRate": "ושל האית'ר הינן בערך שווה {{ label }} תוודאו שההפקדה של הטוקן",
+  "removeLiquidity": "הוצאה של נזילות",
+  "poolTokens": "טוקנים של מאגר הנזילות",
+  "enterLabelCont": "כדי להמשיך {{ label }} הכנס ",
+  "youAreRemoving": "יוסרו",
+  "youWillRemove": "יוסרו",
+  "createExchange": "ליצירת זוג מסחר",
+  "invalidTokenAddress": "כתובת טוקן לא נכונה",
+  "exchangeExists": "{{ label }} כבר קיים זוג המרה עבור",
+  "invalidSymbol": "תו שגוי",
+  "invalidDecimals": "ספרות עשרוניות שגויות",
+  "tokenAddress": "כתובת הטוקן",
+  "label": "שם",
+  "decimals": "ספרות עשרויות",
+  "enterTokenCont": "הכניסו כתובת טוקן כדי להמשיך"
+}

src/assets/images/ethereum-logo.svg

@@ -1,9 +0,0 @@
-<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-<rect width="20" height="20" fill="url(#pattern0)"/>
-<defs>
-<pattern id="pattern0" patternContentUnits="objectBoundingBox" width="1" height="1">
-<use xlink:href="#image0" transform="scale(0.0078125)"/>
-</pattern>
-<image id="image0" width="128" height="128" xlink:href="data:image/png;base64,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"/>
-</defs>
-</svg>

src/components/AccountDetails/Copy.tsx

@@ -1,26 +1,26 @@
 import React from 'react'
 import styled from 'styled-components'
-import { useCopyClipboard } from '../../hooks'
+import useCopyClipboard from '../../hooks/useCopyClipboard'
 
-import { Link } from '../../theme'
+import { LinkStyledButton } from '../../theme'
 import { CheckCircle, Copy } from 'react-feather'
 
-const CopyIcon = styled(Link)`
-  color: ${({ theme }) => theme.text4};
+const CopyIcon = styled(LinkStyledButton)`
+  color: ${({ theme }) => theme.text3};
   flex-shrink: 0;
   display: flex;
-  margin-right: 1rem;
-  margin-left: 0.5rem;
   text-decoration: none;
+  font-size: 0.825rem;
   :hover,
   :active,
   :focus {
     text-decoration: none;
-    color: ${({ theme }) => theme.text3};
+    color: ${({ theme }) => theme.text2};
   }
 `
 const TransactionStatusText = styled.span`
   margin-left: 0.25rem;
+  font-size: 0.825rem;
   ${({ theme }) => theme.flexRowNoWrap};
   align-items: center;
 `
@@ -30,7 +30,6 @@ export default function CopyHelper(props: { toCopy: string; children?: React.Rea
 
   return (
     <CopyIcon onClick={() => setCopied(props.toCopy)}>
-      {props.children}
       {isCopied ? (
         <TransactionStatusText>
           <CheckCircle size={'16'} />
@@ -41,6 +40,7 @@ export default function CopyHelper(props: { toCopy: string; children?: React.Rea
           <Copy size={'16'} />
         </TransactionStatusText>
       )}
+      {isCopied ? '' : props.children}
     </CopyIcon>
   )
 }

src/components/AccountDetails/Transaction.tsx

@@ -1,55 +1,39 @@
 import React from 'react'
 import styled from 'styled-components'
-import { Check, Triangle } from 'react-feather'
+import { CheckCircle, Triangle, ExternalLink as LinkIcon } from 'react-feather'
 
 import { useActiveWeb3React } from '../../hooks'
 import { getEtherscanLink } from '../../utils'
-import { Link, Spinner } from '../../theme'
-import Circle from '../../assets/images/circle.svg'
-
-import { transparentize } from 'polished'
+import { ExternalLink } from '../../theme'
 import { useAllTransactions } from '../../state/transactions/hooks'
+import { RowFixed } from '../Row'
+import Loader from '../Loader'
 
-const TransactionWrapper = styled.div`
-  margin-top: 0.75rem;
-`
+const TransactionWrapper = styled.div``
 
 const TransactionStatusText = styled.div`
   margin-right: 0.5rem;
-`
-
-const TransactionState = styled(Link)<{ pending: boolean; success?: boolean }>`
   display: flex;
-  justify-content: space-between;
-  text-decoration: none !important;
-
-  border-radius: 0.5rem;
-  padding: 0.5rem 0.75rem;
-  font-weight: 500;
-  font-size: 0.75rem;
-  border: 1px solid;
-
-  color: ${({ pending, success, theme }) => (pending ? theme.primary1 : success ? theme.green1 : theme.red1)};
-
-  border-color: ${({ pending, success, theme }) =>
-    pending
-      ? transparentize(0.75, theme.primary1)
-      : success
-      ? transparentize(0.75, theme.green1)
-      : transparentize(0.75, theme.red1)};
-
+  align-items: center;
   :hover {
-    border-color: ${({ pending, success, theme }) =>
-      pending
-        ? transparentize(0, theme.primary1)
-        : success
-        ? transparentize(0, theme.green1)
-        : transparentize(0, theme.red1)};
+    text-decoration: underline;
   }
 `
 
-const IconWrapper = styled.div`
-  flex-shrink: 0;
+const TransactionState = styled(ExternalLink)<{ pending: boolean; success?: boolean }>`
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  text-decoration: none !important;
+  border-radius: 0.5rem;
+  padding: 0.25rem 0rem;
+  font-weight: 500;
+  font-size: 0.825rem;
+  color: ${({ theme }) => theme.primary1};
+`
+
+const IconWrapper = styled.div<{ pending: boolean; success?: boolean }>`
+  color: ${({ pending, success, theme }) => (pending ? theme.primary1 : success ? theme.green1 : theme.red1)};
 `
 
 export default function Transaction({ hash }: { hash: string }) {
@@ -65,9 +49,12 @@ export default function Transaction({ hash }: { hash: string }) {
   return (
     <TransactionWrapper>
       <TransactionState href={getEtherscanLink(chainId, hash, 'transaction')} pending={pending} success={success}>
-        <TransactionStatusText>{summary ? summary : hash}</TransactionStatusText>
-        <IconWrapper>
-          {pending ? <Spinner src={Circle} /> : success ? <Check size="16" /> : <Triangle size="16" />}
+        <RowFixed>
+          <TransactionStatusText>{summary ? summary : hash}</TransactionStatusText>
+          <LinkIcon size={16} />
+        </RowFixed>
+        <IconWrapper pending={pending} success={success}>
+          {pending ? <Loader /> : success ? <CheckCircle size="16" /> : <Triangle size="16" />}
         </IconWrapper>
       </TransactionState>
     </TransactionWrapper>

src/components/AccountDetails/index.tsx

@@ -2,9 +2,9 @@ import React, { useCallback, useContext } from 'react'
 import { useDispatch } from 'react-redux'
 import styled, { ThemeContext } from 'styled-components'
 import { useActiveWeb3React } from '../../hooks'
-import { isMobile } from 'react-device-detect'
 import { AppDispatch } from '../../state'
 import { clearAllTransactions } from '../../state/transactions/actions'
+import { shortenAddress } from '../../utils'
 import { AutoRow } from '../Row'
 import Copy from './Copy'
 import Transaction from './Transaction'
@@ -18,10 +18,9 @@ import WalletConnectIcon from '../../assets/images/walletConnectIcon.svg'
 import FortmaticIcon from '../../assets/images/fortmaticIcon.png'
 import PortisIcon from '../../assets/images/portisIcon.png'
 import Identicon from '../Identicon'
-
-import { ButtonEmpty } from '../Button'
-
-import { Link, TYPE } from '../../theme'
+import { ButtonSecondary } from '../Button'
+import { ExternalLink as LinkIcon } from 'react-feather'
+import { ExternalLink, LinkStyledButton, TYPE } from '../../theme'
 
 const HeaderRow = styled.div`
   ${({ theme }) => theme.flexRowNoWrap};
@@ -55,31 +54,31 @@ const UpperSection = styled.div`
 
 const InfoCard = styled.div`
   padding: 1rem;
-  background-color: ${({ theme }) => theme.bg2};
+  border: 1px solid ${({ theme }) => theme.bg3};
   border-radius: 20px;
+  position: relative;
+  display: grid;
+  grid-row-gap: 12px;
+  margin-bottom: 20px;
 `
 
 const AccountGroupingRow = styled.div`
   ${({ theme }) => theme.flexRowNoWrap};
   justify-content: space-between;
   align-items: center;
-  font-weight: 500;
+  font-weight: 400;
   color: ${({ theme }) => theme.text1};
 
   div {
     ${({ theme }) => theme.flexRowNoWrap}
     align-items: center;
   }
-
-  &:first-of-type {
-    margin-bottom: 8px;
-  }
 `
 
 const AccountSection = styled.div`
   background-color: ${({ theme }) => theme.bg1};
   padding: 0rem 1rem;
-  ${({ theme }) => theme.mediaWidth.upToMedium`padding: 0rem 1rem 1rem 1rem;`};
+  ${({ theme }) => theme.mediaWidth.upToMedium`padding: 0rem 1rem 1.5rem 1rem;`};
 `
 
 const YourAccount = styled.div`
@@ -94,28 +93,6 @@ const YourAccount = styled.div`
   }
 `
 
-const GreenCircle = styled.div`
-  ${({ theme }) => theme.flexRowNoWrap}
-  justify-content: center;
-  align-items: center;
-
-  &:first-child {
-    height: 8px;
-    width: 8px;
-    margin-left: 12px;
-    margin-right: 2px;
-    background-color: ${({ theme }) => theme.green1};
-    border-radius: 50%;
-  }
-`
-
-const CircleWrapper = styled.div`
-  color: ${({ theme }) => theme.green1};
-  display: flex;
-  justify-content: center;
-  align-items: center;
-`
-
 const LowerSection = styled.div`
   ${({ theme }) => theme.flexColumnNoWrap}
   padding: 1.5rem;
@@ -132,13 +109,14 @@ const LowerSection = styled.div`
   }
 `
 
-const AccountControl = styled.div<{ hasENS: boolean; isENS: boolean }>`
-  ${({ theme }) => theme.flexRowNoWrap};
-  align-items: center;
+const AccountControl = styled.div`
+  display: flex;
+  justify-content: space-between;
   min-width: 0;
+  width: 100%;
 
-  font-weight: ${({ hasENS, isENS }) => (hasENS ? (isENS ? 500 : 400) : 500)};
-  font-size: ${({ hasENS, isENS }) => (hasENS ? (isENS ? '1rem' : '0.8rem') : '1rem')};
+  font-weight: 500;
+  font-size: 1.25rem;
 
   a:hover {
     text-decoration: underline;
@@ -146,22 +124,22 @@ const AccountControl = styled.div<{ hasENS: boolean; isENS: boolean }>`
 
   p {
     min-width: 0;
-    margin: 0.5rem 0;
+    margin: 0;
     overflow: hidden;
     text-overflow: ellipsis;
     white-space: nowrap;
   }
 `
 
-const ConnectButtonRow = styled.div`
-  ${({ theme }) => theme.flexRowNoWrap}
-  align-items: center;
-  justify-content: center;
-  margin: 10px 0;
-`
-
-const StyledLink = styled(Link)<{ hasENS: boolean; isENS: boolean }>`
-  color: ${({ hasENS, isENS, theme }) => (hasENS ? (isENS ? theme.primary1 : theme.text3) : theme.primary1)};
+const AddressLink = styled(ExternalLink)<{ hasENS: boolean; isENS: boolean }>`
+  font-size: 0.825rem;
+  color: ${({ theme }) => theme.text3};
+  margin-left: 1rem;
+  font-size: 0.825rem;
+  display: flex;
+  :hover {
+    color: ${({ theme }) => theme.text2};
+  }
 `
 
 const CloseIcon = styled.div`
@@ -181,14 +159,17 @@ const CloseColor = styled(Close)`
 `
 
 const WalletName = styled.div`
-  padding-left: 0.5rem;
   width: initial;
+  font-size: 0.825rem;
+  font-weight: 500;
+  color: ${({ theme }) => theme.text3};
 `
 
 const IconWrapper = styled.div<{ size?: number }>`
   ${({ theme }) => theme.flexColumnNoWrap};
   align-items: center;
   justify-content: center;
+  margin-right: 8px;
   & > img,
   span {
     height: ${({ size }) => (size ? size + 'px' : '32px')};
@@ -203,10 +184,12 @@ const TransactionListWrapper = styled.div`
   ${({ theme }) => theme.flexColumnNoWrap};
 `
 
-const WalletAction = styled.div`
-  color: ${({ theme }) => theme.text4};
-  margin-left: 16px;
+const WalletAction = styled(ButtonSecondary)`
+  width: fit-content;
   font-weight: 400;
+  margin-left: 8px;
+  font-size: 0.825rem;
+  padding: 4px 6px;
   :hover {
     cursor: pointer;
     text-decoration: underline;
@@ -255,39 +238,39 @@ export default function AccountDetails({
           SUPPORTED_WALLETS[k].connector === connector && (connector !== injected || isMetaMask === (k === 'METAMASK'))
       )
       .map(k => SUPPORTED_WALLETS[k].name)[0]
-    return <WalletName>{name}</WalletName>
+    return <WalletName>Connected with {name}</WalletName>
   }
 
   function getStatusIcon() {
     if (connector === injected) {
       return (
         <IconWrapper size={16}>
-          <Identicon /> {formatConnectorName()}
+          <Identicon />
         </IconWrapper>
       )
     } else if (connector === walletconnect) {
       return (
         <IconWrapper size={16}>
-          <img src={WalletConnectIcon} alt={''} /> {formatConnectorName()}
+          <img src={WalletConnectIcon} alt={''} />
         </IconWrapper>
       )
     } else if (connector === walletlink) {
       return (
         <IconWrapper size={16}>
-          <img src={CoinbaseWalletIcon} alt={''} /> {formatConnectorName()}
+          <img src={CoinbaseWalletIcon} alt={''} />
         </IconWrapper>
       )
     } else if (connector === fortmatic) {
       return (
         <IconWrapper size={16}>
-          <img src={FortmaticIcon} alt={''} /> {formatConnectorName()}
+          <img src={FortmaticIcon} alt={''} />
         </IconWrapper>
       )
     } else if (connector === portis) {
       return (
         <>
           <IconWrapper size={16}>
-            <img src={PortisIcon} alt={''} /> {formatConnectorName()}
+            <img src={PortisIcon} alt={''} />
             <MainWalletAction
               onClick={() => {
                 portis.portis.showPortis()
@@ -320,10 +303,11 @@ export default function AccountDetails({
           <YourAccount>
             <InfoCard>
               <AccountGroupingRow>
-                {getStatusIcon()}
+                {formatConnectorName()}
                 <div>
                   {connector !== injected && connector !== walletlink && (
                     <WalletAction
+                      style={{ fontSize: '.825rem', fontWeight: 400, marginRight: '8px' }}
                       onClick={() => {
                         ;(connector as any).close()
                       }}
@@ -331,71 +315,84 @@ export default function AccountDetails({
                       Disconnect
                     </WalletAction>
                   )}
-                  <CircleWrapper>
-                    <GreenCircle>
-                      <div />
-                    </GreenCircle>
-                  </CircleWrapper>
+                  <WalletAction
+                    style={{ fontSize: '.825rem', fontWeight: 400 }}
+                    onClick={() => {
+                      openOptions()
+                    }}
+                  >
+                    Change
+                  </WalletAction>
                 </div>
               </AccountGroupingRow>
               <AccountGroupingRow id="web3-account-identifier-row">
-                {ENSName ? (
-                  <>
-                    <AccountControl hasENS={!!ENSName} isENS={true}>
-                      <p>{ENSName}</p> <Copy toCopy={account} />
-                    </AccountControl>
-                  </>
-                ) : (
-                  <>
-                    <AccountControl hasENS={!!ENSName} isENS={false}>
-                      <p>{account}</p> <Copy toCopy={account} />
-                    </AccountControl>
-                  </>
-                )}
+                <AccountControl>
+                  {ENSName ? (
+                    <>
+                      <div>
+                        {getStatusIcon()}
+                        <p> {ENSName}</p>
+                      </div>
+                    </>
+                  ) : (
+                    <>
+                      <div>
+                        {getStatusIcon()}
+                        <p> {shortenAddress(account)}</p>
+                      </div>
+                    </>
+                  )}
+                </AccountControl>
               </AccountGroupingRow>
               <AccountGroupingRow>
                 {ENSName ? (
                   <>
-                    <AccountControl hasENS={!!ENSName} isENS={false}>
-                      <StyledLink hasENS={!!ENSName} isENS={true} href={getEtherscanLink(chainId, ENSName, 'address')}>
-                        View on Etherscan ↗
-                      </StyledLink>
+                    <AccountControl>
+                      <div>
+                        <Copy toCopy={account}>
+                          <span style={{ marginLeft: '4px' }}>Copy Address</span>
+                        </Copy>
+                        <AddressLink
+                          hasENS={!!ENSName}
+                          isENS={true}
+                          href={getEtherscanLink(chainId, ENSName, 'address')}
+                        >
+                          <LinkIcon size={16} />
+                          <span style={{ marginLeft: '4px' }}>View on Etherscan</span>
+                        </AddressLink>
+                      </div>
                     </AccountControl>
                   </>
                 ) : (
                   <>
-                    <AccountControl hasENS={!!ENSName} isENS={false}>
-                      <StyledLink hasENS={!!ENSName} isENS={false} href={getEtherscanLink(chainId, account, 'address')}>
-                        View on Etherscan ↗
-                      </StyledLink>
+                    <AccountControl>
+                      <div>
+                        <Copy toCopy={account}>
+                          <span style={{ marginLeft: '4px' }}>Copy Address</span>
+                        </Copy>
+                        <AddressLink
+                          hasENS={!!ENSName}
+                          isENS={false}
+                          href={getEtherscanLink(chainId, account, 'address')}
+                        >
+                          <LinkIcon size={16} />
+                          <span style={{ marginLeft: '4px' }}>View on Etherscan</span>
+                        </AddressLink>
+                      </div>
                     </AccountControl>
                   </>
                 )}
+                {/* {formatConnectorName()} */}
               </AccountGroupingRow>
             </InfoCard>
           </YourAccount>
-
-          {!(isMobile && (window.web3 || window.ethereum)) && (
-            <ConnectButtonRow>
-              <ButtonEmpty
-                style={{ fontWeight: 400 }}
-                padding={'12px'}
-                width={'260px'}
-                onClick={() => {
-                  openOptions()
-                }}
-              >
-                Connect to a different wallet
-              </ButtonEmpty>
-            </ConnectButtonRow>
-          )}
         </AccountSection>
       </UpperSection>
       {!!pendingTransactions.length || !!confirmedTransactions.length ? (
         <LowerSection>
-          <AutoRow style={{ justifyContent: 'space-between' }}>
+          <AutoRow mb={'1rem'} style={{ justifyContent: 'space-between' }}>
             <TYPE.body>Recent Transactions</TYPE.body>
-            <Link onClick={clearAllTransactionsCallback}>(clear all)</Link>
+            <LinkStyledButton onClick={clearAllTransactionsCallback}>(clear all)</LinkStyledButton>
           </AutoRow>
           {renderTransactions(pendingTransactions)}
           {renderTransactions(confirmedTransactions)}

src/components/AddressInputPanel/index.tsx

@@ -1,9 +1,10 @@
 import React, { useState, useEffect, useContext } from 'react'
 import styled, { ThemeContext } from 'styled-components'
+import useDebounce from '../../hooks/useDebounce'
 
 import { isAddress } from '../../utils'
-import { useActiveWeb3React, useDebounce } from '../../hooks'
-import { Link, TYPE } from '../../theme'
+import { useActiveWeb3React } from '../../hooks'
+import { ExternalLink, TYPE } from '../../theme'
 import { AutoColumn } from '../Column'
 import { RowBetween } from '../Row'
 import { getEtherscanLink } from '../../utils'
@@ -159,12 +160,12 @@ export default function AddressInputPanel({
                 Recipient
               </TYPE.black>
               {data.address && (
-                <Link
+                <ExternalLink
                   href={getEtherscanLink(chainId, data.name || data.address, 'address')}
                   style={{ fontSize: '14px' }}
                 >
                   (View on Etherscan)
-                </Link>
+                </ExternalLink>
               )}
             </RowBetween>
             <Input

src/components/Button/index.tsx

@@ -6,7 +6,12 @@ import { RowBetween } from '../Row'
 import { ChevronDown } from 'react-feather'
 import { Button as RebassButton, ButtonProps } from 'rebass/styled-components'
 
-const Base = styled(RebassButton)<{ padding?: string; width?: string; borderRadius?: string }>`
+const Base = styled(RebassButton)<{
+  padding?: string
+  width?: string
+  borderRadius?: string
+  altDisbaledStyle?: boolean
+}>`
   padding: ${({ padding }) => (padding ? padding : '18px')};
   width: ${({ width }) => (width ? width : '100%')};
   font-weight: 500;
@@ -45,10 +50,12 @@ export const ButtonPrimary = styled(Base)`
     background-color: ${({ theme }) => darken(0.1, theme.primary1)};
   }
   &:disabled {
-    background-color: ${({ theme }) => theme.bg3};
-    color: ${({ theme }) => theme.text3}
+    background-color: ${({ theme, altDisbaledStyle }) => (altDisbaledStyle ? theme.primary1 : theme.bg3)};
+    color: ${({ theme, altDisbaledStyle }) => (altDisbaledStyle ? 'white' : theme.text3)}
     cursor: auto;
     box-shadow: none;
+    border: 1px solid transparent;;
+    outline: none;
   }
 `
 
@@ -68,6 +75,16 @@ export const ButtonLight = styled(Base)`
     box-shadow: 0 0 0 1pt ${({ theme, disabled }) => !disabled && darken(0.05, theme.primary5)};
     background-color: ${({ theme, disabled }) => !disabled && darken(0.05, theme.primary5)};
   }
+  :disabled {
+    opacity: 0.4;
+    :hover {
+      cursor: auto;
+      background-color: ${({ theme }) => theme.primary5};
+      box-shadow: none;
+      border: 1px solid transparent;
+      outline: none;
+    }
+  }
 `
 
 export const ButtonGray = styled(Base)`

src/components/ConfirmationModal/index.tsx

@@ -1,19 +1,17 @@
-import React, { useCallback, useContext } from 'react'
+import React, { useContext } from 'react'
 import styled, { ThemeContext } from 'styled-components'
-import { RouteComponentProps, withRouter } from 'react-router-dom'
-
 import Modal from '../Modal'
-import Loader from '../Loader'
-import { Link } from '../../theme'
+import { ExternalLink } from '../../theme'
 import { Text } from 'rebass'
-import { CloseIcon } from '../../theme/components'
+import { CloseIcon, Spinner } from '../../theme/components'
 import { RowBetween } from '../Row'
 import { ArrowUpCircle } from 'react-feather'
 import { ButtonPrimary } from '../Button'
 import { AutoColumn, ColumnCenter } from '../Column'
+import Circle from '../../assets/images/blue-loader.svg'
 
-import { useActiveWeb3React } from '../../hooks'
 import { getEtherscanLink } from '../../utils'
+import { useActiveWeb3React } from '../../hooks'
 
 const Wrapper = styled.div`
   width: 100%;
@@ -32,56 +30,41 @@ const ConfirmedIcon = styled(ColumnCenter)`
   padding: 60px 0;
 `
 
-interface ConfirmationModalProps extends RouteComponentProps<{}> {
+const CustomLightSpinner = styled(Spinner)<{ size: string }>`
+  height: ${({ size }) => size};
+  width: ${({ size }) => size};
+`
+
+interface ConfirmationModalProps {
   isOpen: boolean
   onDismiss: () => void
   hash: string
   topContent: () => React.ReactChild
   bottomContent: () => React.ReactChild
   attemptingTxn: boolean
-  pendingConfirmation: boolean
   pendingText: string
   title?: string
 }
 
-function ConfirmationModal({
-  history,
+export default function ConfirmationModal({
   isOpen,
   onDismiss,
-  hash,
   topContent,
   bottomContent,
   attemptingTxn,
-  pendingConfirmation,
+  hash,
   pendingText,
   title = ''
 }: ConfirmationModalProps) {
   const { chainId } = useActiveWeb3React()
   const theme = useContext(ThemeContext)
 
-  const dismissAndReturn = useCallback(() => {
-    if (history.location.pathname.match('/add') || history.location.pathname.match('/remove')) {
-      history.push('/pool')
-    }
-    onDismiss()
-  }, [onDismiss, history])
+  const transactionBroadcast = !!hash
 
-  return (
-    <Modal isOpen={isOpen} onDismiss={onDismiss} maxHeight={90}>
-      {!attemptingTxn ? (
-        <Wrapper>
-          <Section>
-            <RowBetween>
-              <Text fontWeight={500} fontSize={20}>
-                {title}
-              </Text>
-              <CloseIcon onClick={onDismiss} />
-            </RowBetween>
-            {topContent()}
-          </Section>
-          <BottomSection gap="12px">{bottomContent()}</BottomSection>
-        </Wrapper>
-      ) : (
+  // waiting for user to confirm/reject tx _or_ showing info on a tx that has been broadcast
+  if (attemptingTxn || transactionBroadcast) {
+    return (
+      <Modal isOpen={isOpen} onDismiss={onDismiss} maxHeight={90}>
         <Wrapper>
           <Section>
             <RowBetween>
@@ -89,37 +72,36 @@ function ConfirmationModal({
               <CloseIcon onClick={onDismiss} />
             </RowBetween>
             <ConfirmedIcon>
-              {pendingConfirmation ? (
-                <Loader size="90px" />
-              ) : (
+              {transactionBroadcast ? (
                 <ArrowUpCircle strokeWidth={0.5} size={90} color={theme.primary1} />
+              ) : (
+                <CustomLightSpinner src={Circle} alt="loader" size={'90px'} />
               )}
             </ConfirmedIcon>
             <AutoColumn gap="12px" justify={'center'}>
               <Text fontWeight={500} fontSize={20}>
-                {!pendingConfirmation ? 'Transaction Submitted' : 'Waiting For Confirmation'}
+                {transactionBroadcast ? 'Transaction Submitted' : 'Waiting For Confirmation'}
               </Text>
               <AutoColumn gap="12px" justify={'center'}>
                 <Text fontWeight={600} fontSize={14} color="" textAlign="center">
                   {pendingText}
                 </Text>
               </AutoColumn>
-              {!pendingConfirmation && (
+
+              {transactionBroadcast ? (
                 <>
-                  <Link href={getEtherscanLink(chainId, hash, 'transaction')}>
+                  <ExternalLink href={getEtherscanLink(chainId, hash, 'transaction')}>
                     <Text fontWeight={500} fontSize={14} color={theme.primary1}>
                       View on Etherscan
                     </Text>
-                  </Link>
-                  <ButtonPrimary onClick={dismissAndReturn} style={{ margin: '20px 0 0 0' }}>
+                  </ExternalLink>
+                  <ButtonPrimary onClick={onDismiss} style={{ margin: '20px 0 0 0' }}>
                     <Text fontWeight={500} fontSize={20}>
                       Close
                     </Text>
                   </ButtonPrimary>
                 </>
-              )}
-
-              {pendingConfirmation && (
+              ) : (
                 <Text fontSize={12} color="#565A69" textAlign="center">
                   Confirm this transaction in your wallet
                 </Text>
@@ -127,9 +109,25 @@ function ConfirmationModal({
             </AutoColumn>
           </Section>
         </Wrapper>
-      )}
+      </Modal>
+    )
+  }
+
+  // confirmation screen
+  return (
+    <Modal isOpen={isOpen} onDismiss={onDismiss} maxHeight={90}>
+      <Wrapper>
+        <Section>
+          <RowBetween>
+            <Text fontWeight={500} fontSize={20}>
+              {title}
+            </Text>
+            <CloseIcon onClick={onDismiss} />
+          </RowBetween>
+          {topContent()}
+        </Section>
+        <BottomSection gap="12px">{bottomContent()}</BottomSection>
+      </Wrapper>
     </Modal>
   )
 }
-
-export default withRouter(ConfirmationModal)

src/components/CurrencyInputPanel/index.tsx

@@ -49,7 +49,6 @@ const LabelRow = styled.div`
   font-size: 0.75rem;
   line-height: 1rem;
   padding: 0.75rem 1rem 0 1rem;
-  height: 20px;
   span:hover {
     cursor: pointer;
     color: ${({ theme }) => darken(0.2, theme.text2)};

src/components/Header/index.tsx

@@ -8,7 +8,7 @@ import Row from '../Row'
 import Menu from '../Menu'
 import Web3Status from '../Web3Status'
 
-import { Link } from '../../theme'
+import { ExternalLink, StyledInternalLink } from '../../theme'
 import { Text } from 'rebass'
 import { WETH, ChainId } from '@uniswap/sdk'
 import { isMobile } from 'react-device-detect'
@@ -138,7 +138,8 @@ const VersionLabel = styled.span<{ isV2?: boolean }>`
 
 const VersionToggle = styled.a`
   border-radius: 16px;
-  border: 1px solid ${({ theme }) => theme.primary1};
+  background: ${({ theme }) => theme.primary5};
+  border: 1px solid ${({ theme }) => theme.primary4};
   color: ${({ theme }) => theme.primary1};
   display: flex;
   width: fit-content;
@@ -159,13 +160,13 @@ export default function Header() {
     <HeaderFrame>
       <MigrateBanner>
         Uniswap V2 is live! Read the&nbsp;
-        <Link href="https://uniswap.org/blog/launch-uniswap-v2/">
+        <ExternalLink href="https://uniswap.org/blog/launch-uniswap-v2/">
           <b>blog post ↗</b>
-        </Link>
+        </ExternalLink>
         &nbsp;or&nbsp;
-        <Link href="https://migrate.uniswap.exchange/">
+        <StyledInternalLink to="/migrate/v1">
           <b>migrate your liquidity ↗</b>
-        </Link>
+        </StyledInternalLink>
         .
       </MigrateBanner>
       <RowBetween padding="1rem">
@@ -204,7 +205,7 @@ export default function Header() {
           </TestnetWrapper>
           <AccountElement active={!!account} style={{ pointerEvents: 'auto' }}>
             {account && userEthBalance ? (
-              <Text style={{ flexShrink: 0 }} px="0.5rem" fontWeight={500}>
+              <Text style={{ flexShrink: 0 }} pl="0.75rem" pr="0.5rem" fontWeight={500}>
                 {userEthBalance?.toSignificant(4)} ETH
               </Text>
             ) : null}

src/components/Loader/index.tsx

@@ -1,15 +1,38 @@
 import React from 'react'
 
-import styled from 'styled-components'
+import styled, { keyframes } from 'styled-components'
 
-import { Spinner } from '../../theme'
-import Circle from '../../assets/images/blue-loader.svg'
-
-const SpinnerWrapper = styled(Spinner)<{ size: string }>`
-  height: ${({ size }) => size};
-  width: ${({ size }) => size};
+const rotate = keyframes`
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
 `
 
-export default function Loader({ size }: { size: string }) {
-  return <SpinnerWrapper src={Circle} alt="loader" size={size} />
+const StyledSVG = styled.svg<{ size: string; stroke?: string }>`
+  animation: 2s ${rotate} linear infinite;
+  height: ${({ size }) => size};
+  width: ${({ size }) => size};
+  path {
+    stroke: ${({ stroke, theme }) => stroke ?? theme.primary1};
+  }
+`
+
+/**
+ * Takes in custom size and stroke for circle color, default to primary color as fill,
+ * need ...rest for layered styles on top
+ */
+export default function Loader({ size = '16px', stroke = null, ...rest }: { size?: string; stroke?: string }) {
+  return (
+    <StyledSVG viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" size={size} stroke={stroke} {...rest}>
+      <path
+        d="M12 2C6.47715 2 2 6.47715 2 12C2 17.5228 6.47715 22 12 22C17.5228 22 22 17.5228 22 12C22 9.27455 20.9097 6.80375 19.1414 5"
+        strokeWidth="2.5"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+      />
+    </StyledSVG>
+  )
 }

src/components/Menu/index.tsx

@@ -2,9 +2,9 @@ import React, { useRef, useEffect } from 'react'
 import { Info, BookOpen, Code, PieChart, MessageCircle } from 'react-feather'
 import styled from 'styled-components'
 import { ReactComponent as MenuIcon } from '../../assets/images/menu.svg'
+import useToggle from '../../hooks/useToggle'
 
-import { Link } from '../../theme'
-import { useToggle } from '../../hooks'
+import { ExternalLink } from '../../theme'
 
 const StyledMenuIcon = styled(MenuIcon)`
   path {
@@ -63,7 +63,7 @@ const MenuFlyout = styled.span`
   z-index: 100;
 `
 
-const MenuItem = styled(Link)`
+const MenuItem = styled(ExternalLink)`
   flex: 1;
   padding: 0.5rem 0.5rem;
   color: ${({ theme }) => theme.text2};

src/components/Modal/index.tsx

@@ -9,9 +9,9 @@ import '@reach/dialog/styles.css'
 import { transparentize } from 'polished'
 import { useGesture } from 'react-use-gesture'
 
-// errors emitted, fix with https://github.com/styled-components/styled-components/pull/3006
 const AnimatedDialogOverlay = animated(DialogOverlay)
-const StyledDialogOverlay = styled(AnimatedDialogOverlay)<{ mobile: boolean }>`
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+const StyledDialogOverlay = styled(({ mobile, ...rest }) => <AnimatedDialogOverlay {...rest} />)<{ mobile: boolean }>`
   &[data-reach-dialog-overlay] {
     z-index: 2;
     display: flex;
@@ -41,7 +41,11 @@ const StyledDialogOverlay = styled(AnimatedDialogOverlay)<{ mobile: boolean }>`
 
 // destructure to not pass custom props to Dialog DOM element
 // eslint-disable-next-line @typescript-eslint/no-unused-vars
-const StyledDialogContent = styled(({ minHeight, maxHeight, mobile, isOpen, ...rest }) => <DialogContent {...rest} />)`
+const StyledDialogContent = styled(({ minHeight, maxHeight, mobile, isOpen, ...rest }) => (
+  <DialogContent {...rest} />
+)).attrs({
+  'aria-label': 'dialog'
+})`
   &[data-reach-dialog-content] {
     margin: 0 0 2rem 0;
     border: 1px solid ${({ theme }) => theme.bg1};
@@ -163,11 +167,12 @@ export default function Modal({
                       }}
                     >
                       <StyledDialogContent
+                        ariaLabel="test"
                         style={props}
                         hidden={true}
                         minHeight={minHeight}
                         maxHeight={maxHeight}
-                        mobile={isMobile}
+                        mobile={isMobile ?? undefined}
                       >
                         <HiddenCloseButton onClick={onDismiss} />
                         {children}
@@ -186,13 +191,7 @@ export default function Modal({
         {transitions.map(
           ({ item, key, props }) =>
             item && (
-              <StyledDialogOverlay
-                key={key}
-                style={props}
-                onDismiss={onDismiss}
-                initialFocusRef={initialFocusRef}
-                mobile={false}
-              >
+              <StyledDialogOverlay key={key} style={props} onDismiss={onDismiss} initialFocusRef={initialFocusRef}>
                 <StyledDialogContent hidden={true} minHeight={minHeight} maxHeight={maxHeight} isOpen={isOpen}>
                   <HiddenCloseButton onClick={onDismiss} />
                   {children}

src/components/NavigationTabs/index.tsx

@@ -3,14 +3,13 @@ import styled from 'styled-components'
 import { darken } from 'polished'
 import { useTranslation } from 'react-i18next'
 import { withRouter, NavLink, Link as HistoryLink, RouteComponentProps } from 'react-router-dom'
+import useBodyKeyDown from '../../hooks/useBodyKeyDown'
 
 import { CursorPointer } from '../../theme'
 import { ArrowLeft } from 'react-feather'
 import { RowBetween } from '../Row'
 import QuestionHelper from '../QuestionHelper'
 
-import { useBodyKeyDown } from '../../hooks'
-
 const tabOrder = [
   {
     path: '/swap',
@@ -110,8 +109,8 @@ function NavigationTabs({ location: { pathname }, history }: RouteComponentProps
             <QuestionHelper
               text={
                 adding
-                  ? 'When you add liquidity, you are given pool tokens that represent your position in this pool. These tokens automatically earn fees proportional to your pool share and can be redeemed at any time.'
-                  : 'Your liquidity is represented by a pool token (ERC20). Removing will convert your position back into tokens at the current rate and proportional to the amount of each token in the pool. Any fees you accrued are included in the token amounts you receive.'
+                  ? 'When you add liquidity, you are given pool tokens representing your position. These tokens automatically earn fees proportional to your share of the pool, and can be redeemed at any time.'
+                  : 'Removing pool tokens converts your position back into underlying tokens at the current rate, proportional to your share of the pool. Accrued fees are included in the amounts you receive.'
               }
             />
           </RowBetween>

src/components/Popups/index.tsx

@@ -1,11 +1,12 @@
-import React, { useContext } from 'react'
+import { ChainId, Pair, Token } from '@uniswap/sdk'
+import React, { useContext, useMemo } from 'react'
 import styled, { ThemeContext } from 'styled-components'
 import { useMediaLayout } from 'use-media'
 
 import { X } from 'react-feather'
 import { PopupContent } from '../../state/application/actions'
 import { useActivePopups, useRemovePopup } from '../../state/application/hooks'
-import { Link } from '../../theme'
+import { ExternalLink } from '../../theme'
 import { AutoColumn } from '../Column'
 import DoubleTokenLogo from '../DoubleLogo'
 import Row from '../Row'
@@ -71,6 +72,40 @@ const Popup = styled.div`
   `}
 `
 
+function PoolPopup({
+  token0,
+  token1
+}: {
+  token0: { address?: string; symbol?: string }
+  token1: { address?: string; symbol?: string }
+}) {
+  const pairAddress: string | null = useMemo(() => {
+    if (!token0 || !token1) return null
+    // just mock it out
+    return Pair.getAddress(
+      new Token(ChainId.MAINNET, token0.address, 18),
+      new Token(ChainId.MAINNET, token1.address, 18)
+    )
+  }, [token0, token1])
+
+  return (
+    <AutoColumn gap={'10px'}>
+      <Text fontSize={20} fontWeight={500}>
+        Pool Imported
+      </Text>
+      <Row>
+        <DoubleTokenLogo a0={token0?.address ?? ''} a1={token1?.address ?? ''} margin={true} />
+        <Text fontSize={16} fontWeight={500}>
+          UNI {token0?.symbol} / {token1?.symbol}
+        </Text>
+      </Row>
+      {pairAddress ? (
+        <ExternalLink href={`https://uniswap.info/pair/${pairAddress}`}>View on Uniswap Info.</ExternalLink>
+      ) : null}
+    </AutoColumn>
+  )
+}
+
 function PopupItem({ content, popKey }: { content: PopupContent; popKey: string }) {
   if ('txn' in content) {
     const {
@@ -81,24 +116,12 @@ function PopupItem({ content, popKey }: { content: PopupContent; popKey: string
     const {
       poolAdded: { token0, token1 }
     } = content
-    return (
-      <AutoColumn gap={'10px'}>
-        <Text fontSize={20} fontWeight={500}>
-          Pool Imported
-        </Text>
-        <Row>
-          <DoubleTokenLogo a0={token0?.address ?? ''} a1={token1?.address ?? ''} margin={true} />
-          <Text fontSize={16} fontWeight={500}>
-            UNI {token0?.symbol} / {token1?.symbol}
-          </Text>
-        </Row>
-        <Link>View on Uniswap Info.</Link>
-      </AutoColumn>
-    )
+
+    return <PoolPopup token0={token0} token1={token1} />
   }
 }
 
-export default function App() {
+export default function Popups() {
   const theme = useContext(ThemeContext)
   // get all popups
   const activePopups = useActivePopups()

src/components/PositionCard/index.tsx

@@ -12,7 +12,7 @@ import Card, { GreyCard } from '../Card'
 import TokenLogo from '../TokenLogo'
 import DoubleLogo from '../DoubleLogo'
 import { Text } from 'rebass'
-import { Link } from '../../theme/components'
+import { ExternalLink } from '../../theme/components'
 import { AutoColumn } from '../Column'
 import { ChevronDown, ChevronUp } from 'react-feather'
 import { ButtonSecondary } from '../Button'
@@ -204,7 +204,9 @@ function PositionCard({ pair, history, border, minimal = false }: PositionCardPr
               )}
 
               <AutoRow justify="center" marginTop={'10px'}>
-                <Link href={`https://uniswap.info/pair/${pair?.liquidityToken.address}`}>View pool information ↗</Link>
+                <ExternalLink href={`https://uniswap.info/pair/${pair?.liquidityToken.address}`}>
+                  View pool information ↗
+                </ExternalLink>
               </AutoRow>
               <RowBetween marginTop="10px">
                 <ButtonSecondary

src/components/SearchModal/CommonBases.tsx

@@ -1,6 +1,8 @@
 import React from 'react'
 import { Text } from 'rebass'
-import { COMMON_BASES } from '../../constants'
+import { Token } from '@uniswap/sdk'
+
+import { SUGGESTED_BASES } from '../../constants'
 import { AutoColumn } from '../Column'
 import QuestionHelper from '../QuestionHelper'
 import { AutoRow } from '../Row'
@@ -25,7 +27,7 @@ export default function CommonBases({
         <QuestionHelper text="These tokens are commonly used in pairs." />
       </AutoRow>
       <AutoRow gap="10px">
-        {COMMON_BASES[chainId]?.map(token => {
+        {(SUGGESTED_BASES[chainId] ?? []).map((token: Token) => {
           return (
             <BaseWrapper
               gap="6px"

src/components/SearchModal/TokenList.tsx

@@ -4,16 +4,16 @@ import { useTranslation } from 'react-i18next'
 import { FixedSizeList } from 'react-window'
 import { Text } from 'rebass'
 import { ThemeContext } from 'styled-components'
-import Circle from '../../assets/images/circle.svg'
 import { ALL_TOKENS } from '../../constants/tokens'
 import { useActiveWeb3React } from '../../hooks'
-import { Link as StyledLink, TYPE } from '../../theme'
+import { LinkStyledButton, TYPE } from '../../theme'
 import { isAddress } from '../../utils'
 import { ButtonSecondary } from '../Button'
 import Column, { AutoColumn } from '../Column'
 import { RowFixed } from '../Row'
 import TokenLogo from '../TokenLogo'
-import { FadedSpan, GreySpan, MenuItem, SpinnerWrapper, ModalInfo } from './styleds'
+import { FadedSpan, GreySpan, MenuItem, ModalInfo } from './styleds'
+import Loader from '../Loader'
 
 function isDefaultToken(tokenAddress: string, chainId?: number): boolean {
   const address = isAddress(tokenAddress)
@@ -28,7 +28,8 @@ export default function TokenList({
   otherToken,
   showSendWithSwap,
   onRemoveAddedToken,
-  otherSelectedText
+  otherSelectedText,
+  hideRemove
 }: {
   tokens: Token[]
   selectedToken: string
@@ -38,6 +39,7 @@ export default function TokenList({
   otherToken: string
   showSendWithSwap?: boolean
   otherSelectedText: string
+  hideRemove?: boolean
 }) {
   const { t } = useTranslation()
   const { account, chainId } = useActiveWeb3React()
@@ -80,15 +82,16 @@ export default function TokenList({
                 </Text>
                 <FadedSpan>
                   <TYPE.main fontWeight={500}>{customAdded && 'Added by user'}</TYPE.main>
-                  {customAdded && (
-                    <div
+                  {customAdded && !hideRemove && (
+                    <LinkStyledButton
                       onClick={event => {
                         event.stopPropagation()
                         onRemoveAddedToken(chainId, address)
                       }}
+                      style={{ marginLeft: '4px', fontWeight: 400 }}
                     >
-                      <StyledLink style={{ marginLeft: '4px', fontWeight: 400 }}>(Remove)</StyledLink>
-                    </div>
+                      (Remove)
+                    </LinkStyledButton>
                   )}
                 </FadedSpan>
               </Column>
@@ -109,7 +112,7 @@ export default function TokenList({
                   )}
                 </Text>
               ) : account ? (
-                <SpinnerWrapper src={Circle} alt="loader" />
+                <Loader />
               ) : (
                 '-'
               )}

src/components/SearchModal/filtering.ts

@@ -10,12 +10,22 @@ export function filterTokens(tokens: Token[], search: string): Token[] {
     return tokens.filter(token => token.address === searchingAddress)
   }
 
-  const lowerSearchParts = searchingAddress ? [] : search.toLowerCase().split(/\s+/)
+  const lowerSearchParts = search
+    .toLowerCase()
+    .split(/\s+/)
+    .filter(s => s.length > 0)
+
+  if (lowerSearchParts.length === 0) {
+    return tokens
+  }
 
   const matchesSearch = (s: string): boolean => {
-    const sParts = s.toLowerCase().split(/\s+/)
+    const sParts = s
+      .toLowerCase()
+      .split(/\s+/)
+      .filter(s => s.length > 0)
 
-    return lowerSearchParts.every(p => p.length === 0 || sParts.some(sp => sp.startsWith(p)))
+    return lowerSearchParts.every(p => p.length === 0 || sParts.some(sp => sp.startsWith(p) || sp.endsWith(p)))
   }
 
   return tokens.filter(token => {

src/components/SearchModal/index.tsx

@@ -10,7 +10,7 @@ import { useActiveWeb3React } from '../../hooks'
 import { useAllTokens, useTokenByAddressAndAutomaticallyAdd } from '../../hooks/Tokens'
 import { useAllDummyPairs, useRemoveUserAddedToken } from '../../state/user/hooks'
 import { useAllTokenBalancesTreatingWETHasETH, useTokenBalances } from '../../state/wallet/hooks'
-import { CloseIcon, Link as StyledLink } from '../../theme/components'
+import { CloseIcon, LinkStyledButton, StyledInternalLink } from '../../theme/components'
 import { isAddress } from '../../utils'
 import Column from '../Column'
 import Modal from '../Modal'
@@ -20,7 +20,7 @@ import Tooltip from '../Tooltip'
 import CommonBases from './CommonBases'
 import { filterPairs, filterTokens } from './filtering'
 import PairList from './PairList'
-import { balanceComparator, useTokenComparator } from './sorting'
+import { useTokenComparator, pairComparator } from './sorting'
 import { PaddedColumn, SearchInput } from './styleds'
 import TokenList from './TokenList'
 import SortButton from './SortButton'
@@ -57,7 +57,7 @@ function SearchModal({
 
   const allTokens = useAllTokens()
   const allPairs = useAllDummyPairs()
-  const allTokenBalances = useAllTokenBalancesTreatingWETHasETH()[account] ?? {}
+  const allTokenBalances = useAllTokenBalancesTreatingWETHasETH() ?? {}
   const allPairBalances = useTokenBalances(
     account,
     allPairs.map(p => p.liquidityToken)
@@ -74,15 +74,26 @@ function SearchModal({
 
   const tokenComparator = useTokenComparator(invertSearchOrder)
 
-  const sortedTokens: Token[] = useMemo(() => {
-    if (!isTokenView) return []
-    return Object.values(allTokens).sort(tokenComparator)
-  }, [allTokens, isTokenView, tokenComparator])
-
   const filteredTokens: Token[] = useMemo(() => {
     if (!isTokenView) return []
-    return filterTokens(sortedTokens, searchQuery)
-  }, [isTokenView, sortedTokens, searchQuery])
+    return filterTokens(Object.values(allTokens), searchQuery)
+  }, [isTokenView, allTokens, searchQuery])
+
+  const filteredSortedTokens: Token[] = useMemo(() => {
+    if (!isTokenView) return []
+    const sorted = filteredTokens.sort(tokenComparator)
+    const symbolMatch = searchQuery
+      .toLowerCase()
+      .split(/\s+/)
+      .filter(s => s.length > 0)
+    if (symbolMatch.length > 1) return sorted
+
+    return [
+      // sort any exact symbol matches first
+      ...sorted.filter(token => token.symbol.toLowerCase() === symbolMatch[0]),
+      ...sorted.filter(token => token.symbol.toLowerCase() !== symbolMatch[0])
+    ]
+  }, [filteredTokens, isTokenView, searchQuery, tokenComparator])
 
   function _onTokenSelect(address: string) {
     onTokenSelect(address)
@@ -105,11 +116,9 @@ function SearchModal({
   const sortedPairList = useMemo(() => {
     if (isTokenView) return []
     return allPairs.sort((a, b): number => {
-      // sort by balance
       const balanceA = allPairBalances[a.liquidityToken.address]
       const balanceB = allPairBalances[b.liquidityToken.address]
-
-      return balanceComparator(balanceA, balanceB)
+      return pairComparator(a, b, balanceA, balanceB)
     })
   }, [isTokenView, allPairs, allPairBalances])
 
@@ -159,7 +168,7 @@ function SearchModal({
             placement="bottom"
           >
             <SearchInput
-              type={'text'}
+              type="text"
               id="token-search-input"
               placeholder={t('tokenSearchPlaceholder')}
               value={searchQuery}
@@ -183,7 +192,7 @@ function SearchModal({
         <div style={{ width: '100%', height: '1px', backgroundColor: theme.bg2 }} />
         {isTokenView ? (
           <TokenList
-            tokens={filteredTokens}
+            tokens={filteredSortedTokens}
             allTokenBalances={allTokenBalances}
             onRemoveAddedToken={removeTokenByAddress}
             onTokenSelect={_onTokenSelect}
@@ -191,6 +200,7 @@ function SearchModal({
             otherToken={otherSelectedTokenAddress}
             selectedToken={hiddenToken}
             showSendWithSwap={showSendWithSwap}
+            hideRemove={Boolean(isAddress(searchQuery))}
           />
         ) : (
           <PairList
@@ -206,19 +216,13 @@ function SearchModal({
           <AutoRow justify={'center'}>
             <div>
               {isTokenView ? (
-                <Text fontWeight={500} color={theme.text2} fontSize={14}>
-                  <StyledLink onClick={openTooltip}>Having trouble finding a token?</StyledLink>
-                </Text>
+                <LinkStyledButton style={{ fontWeight: 500, color: theme.text2, fontSize: 16 }} onClick={openTooltip}>
+                  Having trouble finding a token?
+                </LinkStyledButton>
               ) : (
                 <Text fontWeight={500}>
                   {!isMobile && "Don't see a pool? "}
-                  <StyledLink
-                    onClick={() => {
-                      history.push('/find')
-                    }}
-                  >
-                    {!isMobile ? 'Import it.' : 'Import pool.'}
-                  </StyledLink>
+                  <StyledInternalLink to="/find">{!isMobile ? 'Import it.' : 'Import pool.'}</StyledInternalLink>
                 </Text>
               )}
             </div>

src/components/SearchModal/sorting.ts

@@ -1,10 +1,11 @@
-import { Token, TokenAmount, WETH } from '@uniswap/sdk'
+import { Token, TokenAmount, WETH, Pair } from '@uniswap/sdk'
 import { useMemo } from 'react'
 import { useActiveWeb3React } from '../../hooks'
 import { useAllTokenBalancesTreatingWETHasETH } from '../../state/wallet/hooks'
+import { DUMMY_PAIRS_TO_PIN } from '../../constants'
 
 // compare two token amounts with highest one coming first
-export function balanceComparator(balanceA?: TokenAmount, balanceB?: TokenAmount) {
+function balanceComparator(balanceA?: TokenAmount, balanceB?: TokenAmount) {
   if (balanceA && balanceB) {
     return balanceA.greaterThan(balanceB) ? -1 : balanceA.equalTo(balanceB) ? 0 : 1
   } else if (balanceA && balanceA.greaterThan('0')) {
@@ -15,6 +16,26 @@ export function balanceComparator(balanceA?: TokenAmount, balanceB?: TokenAmount
   return 0
 }
 
+// compare two pairs, favoring "pinned" pairs, and falling back to balances
+export function pairComparator(pairA: Pair, pairB: Pair, balanceA?: TokenAmount, balanceB?: TokenAmount) {
+  const aShouldBePinned =
+    DUMMY_PAIRS_TO_PIN[pairA?.token0?.chainId]?.some(
+      dummyPairToPin => dummyPairToPin.liquidityToken.address === pairA?.liquidityToken?.address
+    ) ?? false
+  const bShouldBePinned =
+    DUMMY_PAIRS_TO_PIN[pairB?.token0?.chainId]?.some(
+      dummyPairToPin => dummyPairToPin.liquidityToken.address === pairB?.liquidityToken?.address
+    ) ?? false
+
+  if (aShouldBePinned && !bShouldBePinned) {
+    return -1
+  } else if (!aShouldBePinned && bShouldBePinned) {
+    return 1
+  } else {
+    return balanceComparator(balanceA, balanceB)
+  }
+}
+
 function getTokenComparator(
   weth: Token | undefined,
   balances: { [tokenAddress: string]: TokenAmount }
@@ -42,10 +63,10 @@ function getTokenComparator(
 }
 
 export function useTokenComparator(inverted: boolean): (tokenA: Token, tokenB: Token) => number {
-  const { account, chainId } = useActiveWeb3React()
+  const { chainId } = useActiveWeb3React()
   const weth = WETH[chainId]
   const balances = useAllTokenBalancesTreatingWETHasETH()
-  const comparator = useMemo(() => getTokenComparator(weth, balances[account] ?? {}), [account, balances, weth])
+  const comparator = useMemo(() => getTokenComparator(weth, balances ?? {}), [balances, weth])
   return useMemo(() => {
     if (inverted) {
       return (tokenA: Token, tokenB: Token) => comparator(tokenA, tokenB) * -1

src/components/SearchModal/styleds.tsx

@@ -1,5 +1,4 @@
 import styled from 'styled-components'
-import { Spinner } from '../../theme'
 import { AutoColumn } from '../Column'
 import { AutoRow, RowBetween, RowFixed } from '../Row'
 
@@ -23,12 +22,6 @@ export const GreySpan = styled.span`
   font-weight: 400;
 `
 
-export const SpinnerWrapper = styled(Spinner)`
-  margin: 0 0.25rem 0 0.25rem;
-  color: ${({ theme }) => theme.text4};
-  opacity: 0.6;
-`
-
 export const Input = styled.input`
   position: relative;
   display: flex;

src/components/Slider/index.tsx

@@ -1,86 +1,127 @@
-import React, { useState, useEffect, useCallback } from 'react'
-import Slider from '@material-ui/core/Slider'
-import { withStyles } from '@material-ui/core/styles'
-import { useDebounce } from '../../hooks'
+import React, { useCallback } from 'react'
+import styled from 'styled-components'
 
-const StyledSlider = withStyles({
-  root: {
-    width: '90%',
-    color: '#565A69',
-    height: 4,
-    marginLeft: '15px',
-    marginRight: '15px',
-    padding: '15px 0'
-  },
-  thumb: {
-    height: 28,
-    width: 28,
-    backgroundColor: '#565A69',
-    marginTop: -14,
-    marginLeft: -14,
-    '&:focus,&:hover,&$active': {
-      boxShadow:
-        '0px 0px 1px rgba(0, 0, 0, 0.04), 0px 4px 8px rgba(0, 0, 0, 0.04), 0px 16px 24px rgba(0, 0, 0, 0.04), 0px 24px 32px rgba(0, 0, 0, 0.04)',
-      // Reset on touch devices, it doesn't add specificity
-      '@media (hover: none)': {}
-    }
-  },
-  active: {},
-  track: {
-    height: 4
-  },
-  rail: {
-    height: 2,
-    opacity: 0.5,
-    backgroundColor: '#C3C5CB'
-  },
-  mark: {
-    backgroundColor: '#C3C5CB',
-    height: 12,
-    width: 2,
-    marginTop: -4
-  },
-  markActive: {
-    opacity: 1,
-    backgroundColor: 'currentColor',
-    height: 12,
-    width: 2,
-    marginTop: -4
+const StyledRangeInput = styled.input<{ value: number }>`
+  -webkit-appearance: none; /* Hides the slider so that custom slider can be made */
+  width: 100%; /* Specific width is required for Firefox. */
+  background: transparent; /* Otherwise white in Chrome */
+  cursor: pointer;
+
+  &:focus {
+    outline: none;
   }
-})(Slider)
+
+  &::-moz-focus-outer {
+    border: 0;
+  }
+
+  &::-webkit-slider-thumb {
+    -webkit-appearance: none;
+    height: 28px;
+    width: 28px;
+    background-color: #565a69;
+    border-radius: 100%;
+    border: none;
+    transform: translateY(-50%);
+    color: ${({ theme }) => theme.bg1};
+
+    &:hover,
+    &:focus {
+      box-shadow: 0px 0px 1px rgba(0, 0, 0, 0.1), 0px 4px 8px rgba(0, 0, 0, 0.08), 0px 16px 24px rgba(0, 0, 0, 0.06),
+        0px 24px 32px rgba(0, 0, 0, 0.04);
+    }
+  }
+
+  &::-moz-range-thumb {
+    height: 28px;
+    width: 28px;
+    background-color: #565a69;
+    border-radius: 100%;
+    border: none;
+    color: ${({ theme }) => theme.bg1};
+
+    &:hover,
+    &:focus {
+      box-shadow: 0px 0px 1px rgba(0, 0, 0, 0.1), 0px 4px 8px rgba(0, 0, 0, 0.08), 0px 16px 24px rgba(0, 0, 0, 0.06),
+        0px 24px 32px rgba(0, 0, 0, 0.04);
+    }
+  }
+
+  &::-ms-thumb {
+    height: 28px;
+    width: 28px;
+    background-color: #565a69;
+    border-radius: 100%;
+    color: ${({ theme }) => theme.bg1};
+
+    &:hover,
+    &:focus {
+      box-shadow: 0px 0px 1px rgba(0, 0, 0, 0.1), 0px 4px 8px rgba(0, 0, 0, 0.08), 0px 16px 24px rgba(0, 0, 0, 0.06),
+        0px 24px 32px rgba(0, 0, 0, 0.04);
+    }
+  }
+
+  &::-webkit-slider-runnable-track {
+    background: linear-gradient(
+      90deg,
+      ${({ theme }) => theme.bg5},
+      ${({ theme }) => theme.bg5} ${({ value }) => value}%,
+      ${({ theme }) => theme.bg3} ${({ value }) => value}%,
+      ${({ theme }) => theme.bg3}
+    );
+    height: 2px;
+  }
+
+  &::-moz-range-track {
+    background: linear-gradient(
+      90deg,
+      ${({ theme }) => theme.bg5},
+      ${({ theme }) => theme.bg5} ${({ value }) => value}%,
+      ${({ theme }) => theme.bg3} ${({ value }) => value}%,
+      ${({ theme }) => theme.bg3}
+    );
+    height: 2px;
+  }
+
+  &::-ms-track {
+    width: 100%;
+    border-color: transparent;
+    color: transparent;
+
+    background: ${({ theme }) => theme.bg5};
+    height: 2px;
+  }
+  &::-ms-fill-lower {
+    background: ${({ theme }) => theme.bg5};
+  }
+  &::-ms-fill-upper {
+    background: ${({ theme }) => theme.bg3};
+  }
+`
 
 interface InputSliderProps {
   value: number
-  onChange: (val: number) => void
-  override?: boolean
+  onChange: (value: number) => void
 }
 
-export default function InputSlider({ value, onChange, override }: InputSliderProps) {
-  const [internalVal, setInternalVal] = useState<number>(value)
-  const debouncedInternalValue = useDebounce(internalVal, 100)
-
-  const handleChange = useCallback(
-    (e, val) => {
-      setInternalVal(val)
-      if (val !== debouncedInternalValue) {
-        onChange(val)
-      }
+export default function InputSlider({ value, onChange }: InputSliderProps) {
+  const changeCallback = useCallback(
+    e => {
+      onChange(e.target.value)
     },
-    [setInternalVal, onChange, debouncedInternalValue]
+    [onChange]
   )
 
-  useEffect(() => {
-    if (override) {
-      setInternalVal(value)
-    }
-  }, [override, value])
-
   return (
-    <StyledSlider
-      value={typeof internalVal === 'number' ? internalVal : 0}
-      onChange={handleChange}
+    <StyledRangeInput
+      type="range"
+      value={value}
+      style={{ width: '90%', marginLeft: 15, marginRight: 15, padding: '15px 0' }}
+      onChange={changeCallback}
       aria-labelledby="input-slider"
       step={1}
+      min={0}
+      max={100}
     />
   )
 }

src/components/SlippageTabs/index.tsx

@@ -1,22 +1,22 @@
-import React, { useState, useEffect, useRef, useCallback, useContext } from 'react'
+import React, { useState, useRef, useContext } from 'react'
 import styled, { ThemeContext } from 'styled-components'
 
 import QuestionHelper from '../QuestionHelper'
-import { Text } from 'rebass'
 import { TYPE } from '../../theme'
 import { AutoColumn } from '../Column'
 import { RowBetween, RowFixed } from '../Row'
 
 import { darken } from 'polished'
-import { useDebounce } from '../../hooks'
 
-const WARNING_TYPE = Object.freeze({
-  none: 'none',
-  emptyInput: 'emptyInput',
-  invalidEntryBound: 'invalidEntryBound',
-  riskyEntryHigh: 'riskyEntryHigh',
-  riskyEntryLow: 'riskyEntryLow'
-})
+enum SlippageError {
+  InvalidInput = 'InvalidInput',
+  RiskyLow = 'RiskyLow',
+  RiskyHigh = 'RiskyHigh'
+}
+
+enum DeadlineError {
+  InvalidInput = 'InvalidInput'
+}
 
 const FancyButton = styled.button`
   color: ${({ theme }) => theme.text1};
@@ -46,7 +46,7 @@ const Option = styled(FancyButton)<{ active: boolean }>`
   color: ${({ active, theme }) => (active ? theme.white : theme.text1)};
 `
 
-const Input = styled.input<{ active?: boolean }>`
+const Input = styled.input`
   background: ${({ theme }) => theme.bg1};
   flex-grow: 1;
   font-size: 12px;
@@ -56,15 +56,8 @@ const Input = styled.input<{ active?: boolean }>`
   &::-webkit-inner-spin-button {
     -webkit-appearance: none;
   }
-  color: ${({ active, theme, color }) => (color === 'red' ? theme.red1 : active ? 'initial' : theme.text1)};
-  cursor: ${({ active }) => (active ? 'initial' : 'inherit')};
-  text-align: ${({ active }) => (active ? 'right' : 'left')};
-`
-
-const BottomError = styled(Text)<{ show?: boolean }>`
-  font-size: 14px;
-  font-weight: 400;
-  padding-top: ${({ show }) => (show ? '12px' : '')};
+  color: ${({ theme, color }) => (color === 'red' ? theme.red1 : theme.text1)};
+  text-align: right;
 `
 
 const OptionCustom = styled(FancyButton)<{ active?: boolean; warning?: boolean }>`
@@ -89,12 +82,6 @@ const SlippageSelector = styled.div`
   padding: 0 20px;
 `
 
-const Percent = styled.div`
-  color: ${({ color, theme }) => (color === 'faded' ? theme.bg1 : color === 'red' ? theme.red1 : 'inherit')};
-  font-size: 0, 8rem;
-  flex-grow: 0;
-`
-
 export interface SlippageTabsProps {
   rawSlippage: number
   setRawSlippage: (rawSlippage: number) => void
@@ -102,247 +89,154 @@ export interface SlippageTabsProps {
   setDeadline: (deadline: number) => void
 }
 
-export default function SlippageTabs({ setRawSlippage, rawSlippage, deadline, setDeadline }: SlippageTabsProps) {
+export default function SlippageTabs({ rawSlippage, setRawSlippage, deadline, setDeadline }: SlippageTabsProps) {
   const theme = useContext(ThemeContext)
-  const [activeIndex, setActiveIndex] = useState(2)
-
-  const [warningType, setWarningType] = useState(WARNING_TYPE.none)
 
   const inputRef = useRef<HTMLInputElement>()
 
-  const [userInput, setUserInput] = useState('')
-  const debouncedInput = useDebounce(userInput, 150)
+  const [slippageInput, setSlippageInput] = useState('')
+  const [deadlineInput, setDeadlineInput] = useState('')
 
-  const [initialSlippage] = useState(rawSlippage)
+  const slippageInputIsValid =
+    slippageInput === '' || (rawSlippage / 100).toFixed(2) === Number.parseFloat(slippageInput).toFixed(2)
+  const deadlineInputIsValid = deadlineInput === '' || (deadline / 60).toString() === deadlineInput
 
-  const [deadlineInput, setDeadlineInput] = useState(deadline / 60)
-
-  const updateSlippage = useCallback(
-    newSlippage => {
-      // round to 2 decimals to prevent ethers error
-      const numParsed = newSlippage * 100
-
-      // set both slippage values in parents
-      setRawSlippage(numParsed)
-    },
-    [setRawSlippage]
-  )
-
-  const checkBounds = useCallback(
-    slippageValue => {
-      setWarningType(WARNING_TYPE.none)
-
-      if (slippageValue === '' || slippageValue === '.') {
-        return setWarningType(WARNING_TYPE.emptyInput)
-      }
-
-      // check bounds and set errors
-      if (Number(slippageValue) < 0 || Number(slippageValue) > 50) {
-        return setWarningType(WARNING_TYPE.invalidEntryBound)
-      }
-      if (Number(slippageValue) >= 0 && Number(slippageValue) < 0.1) {
-        setWarningType(WARNING_TYPE.riskyEntryLow)
-      }
-      if (Number(slippageValue) > 5) {
-        setWarningType(WARNING_TYPE.riskyEntryHigh)
-      }
-      //update the actual slippage value in parent
-      updateSlippage(Number(slippageValue))
-    },
-    [updateSlippage]
-  )
-
-  function parseCustomDeadline(e) {
-    const val = e.target.value
-    const acceptableValues = [/^$/, /^\d+$/]
-    if (acceptableValues.some(re => re.test(val))) {
-      setDeadlineInput(val)
-      setDeadline(val * 60)
-    }
-  }
-  const setFromCustom = () => {
-    setActiveIndex(4)
-    inputRef.current.focus()
-    // if there's a value, evaluate the bounds
-    checkBounds(debouncedInput)
+  let slippageError: SlippageError
+  if (slippageInput !== '' && !slippageInputIsValid) {
+    slippageError = SlippageError.InvalidInput
+  } else if (slippageInputIsValid && rawSlippage < 50) {
+    slippageError = SlippageError.RiskyLow
+  } else if (slippageInputIsValid && rawSlippage > 500) {
+    slippageError = SlippageError.RiskyHigh
   }
 
-  // used for slippage presets
-  const setFromFixed = useCallback(
-    (index, slippage) => {
-      // update slippage in parent, reset errors and input state
-      updateSlippage(slippage)
-      setWarningType(WARNING_TYPE.none)
-      setActiveIndex(index)
-    },
-    [updateSlippage]
-  )
+  let deadlineError: DeadlineError
+  if (deadlineInput !== '' && !deadlineInputIsValid) {
+    deadlineError = DeadlineError.InvalidInput
+  }
 
-  useEffect(() => {
-    switch (initialSlippage) {
-      case 10:
-        setFromFixed(1, 0.1)
-        break
-      case 50:
-        setFromFixed(2, 0.5)
-        break
-      case 100:
-        setFromFixed(3, 1)
-        break
-      default:
-        // restrict to 2 decimal places
-        const acceptableValues = [/^$/, /^\d{1,2}$/, /^\d{0,2}\.\d{0,2}$/]
-        // if its within accepted decimal limit, update the input state
-        if (acceptableValues.some(val => val.test('' + initialSlippage / 100))) {
-          setUserInput('' + initialSlippage / 100)
-          setActiveIndex(4)
-        }
-    }
-  }, [initialSlippage, setFromFixed])
+  function parseCustomSlippage(event) {
+    setSlippageInput(event.target.value)
 
-  // check that the theyve entered number and correct decimal
-  const parseInput = e => {
-    const input = e.target.value
+    let valueAsIntFromRoundedFloat: number
+    try {
+      valueAsIntFromRoundedFloat = Number.parseInt((Number.parseFloat(event.target.value) * 100).toString())
+    } catch {}
 
-    // restrict to 2 decimal places
-    const acceptableValues = [/^$/, /^\d{1,2}$/, /^\d{0,2}\.\d{0,2}$/]
-    // if its within accepted decimal limit, update the input state
-    if (acceptableValues.some(a => a.test(input))) {
-      setUserInput(input)
+    if (
+      typeof valueAsIntFromRoundedFloat === 'number' &&
+      !Number.isNaN(valueAsIntFromRoundedFloat) &&
+      valueAsIntFromRoundedFloat < 5000
+    ) {
+      setRawSlippage(valueAsIntFromRoundedFloat)
     }
   }
 
-  useEffect(() => {
-    if (activeIndex === 4) {
-      checkBounds(debouncedInput)
+  function parseCustomDeadline(event) {
+    setDeadlineInput(event.target.value)
+
+    let valueAsInt: number
+    try {
+      valueAsInt = Number.parseInt(event.target.value) * 60
+    } catch {}
+
+    if (typeof valueAsInt === 'number' && !Number.isNaN(valueAsInt) && valueAsInt > 0) {
+      setDeadline(valueAsInt)
     }
-  })
+  }
 
   return (
     <>
+      <RowFixed padding={'0 20px'}>
+        <TYPE.black fontWeight={400} fontSize={14} color={theme.text2}>
+          Set slippage tolerance
+        </TYPE.black>
+        <QuestionHelper text="Your transaction will revert if the price changes unfavorably by more than this percentage." />
+      </RowFixed>
+
       <SlippageSelector>
         <RowBetween>
           <Option
             onClick={() => {
-              setFromFixed(1, 0.1)
+              setSlippageInput('')
+              setRawSlippage(10)
             }}
-            active={activeIndex === 1}
+            active={rawSlippage === 10}
           >
             0.1%
           </Option>
           <Option
             onClick={() => {
-              setFromFixed(2, 0.5)
+              setSlippageInput('')
+              setRawSlippage(50)
             }}
-            active={activeIndex === 2}
+            active={rawSlippage === 50}
           >
             0.5%
           </Option>
           <Option
             onClick={() => {
-              setFromFixed(3, 1)
+              setSlippageInput('')
+              setRawSlippage(100)
             }}
-            active={activeIndex === 3}
+            active={rawSlippage === 100}
           >
             1%
           </Option>
-          <OptionCustom
-            active={activeIndex === 4}
-            warning={
-              warningType !== WARNING_TYPE.none &&
-              warningType !== WARNING_TYPE.emptyInput &&
-              warningType !== WARNING_TYPE.riskyEntryLow
-            }
-            onClick={() => {
-              setFromCustom()
-            }}
-          >
+          <OptionCustom active={![10, 50, 100].includes(rawSlippage)} warning={!slippageInputIsValid} tabIndex={-1}>
             <RowBetween>
-              {!(warningType === WARNING_TYPE.none || warningType === WARNING_TYPE.emptyInput) && (
-                <span
-                  role="img"
-                  aria-label="warning"
-                  style={{
-                    color:
-                      warningType !== WARNING_TYPE.none && warningType !== WARNING_TYPE.riskyEntryLow
-                        ? 'red'
-                        : warningType === WARNING_TYPE.riskyEntryLow
-                        ? '#F3841E'
-                        : ''
-                  }}
-                >
+              {!!slippageInput &&
+              (slippageError === SlippageError.RiskyLow || slippageError === SlippageError.RiskyHigh) ? (
+                <span role="img" aria-label="warning" style={{ color: '#F3841E' }}>
                   ⚠️
                 </span>
-              )}
+              ) : null}
               <Input
-                tabIndex={-1}
                 ref={inputRef}
-                active={activeIndex === 4}
-                placeholder={
-                  activeIndex === 4
-                    ? !!userInput
-                      ? ''
-                      : '0'
-                    : activeIndex !== 4 && userInput !== ''
-                    ? userInput
-                    : 'Custom'
-                }
-                value={activeIndex === 4 ? userInput : ''}
-                onChange={parseInput}
-                color={
-                  warningType === WARNING_TYPE.emptyInput
-                    ? ''
-                    : warningType !== WARNING_TYPE.none && warningType !== WARNING_TYPE.riskyEntryLow
-                    ? 'red'
-                    : ''
-                }
+                placeholder={(rawSlippage / 100).toFixed(2)}
+                value={slippageInput}
+                onBlur={() => {
+                  parseCustomSlippage({ target: { value: (rawSlippage / 100).toFixed(2) } })
+                }}
+                onChange={parseCustomSlippage}
+                color={!slippageInputIsValid ? 'red' : ''}
               />
-              <Percent
-                color={
-                  activeIndex !== 4
-                    ? 'faded'
-                    : warningType === WARNING_TYPE.riskyEntryHigh || warningType === WARNING_TYPE.invalidEntryBound
-                    ? 'red'
-                    : ''
-                }
-              >
-                %
-              </Percent>
+              %
             </RowBetween>
           </OptionCustom>
         </RowBetween>
-        <RowBetween>
-          <BottomError
-            show={activeIndex === 4}
-            color={
-              warningType === WARNING_TYPE.emptyInput
-                ? '#565A69'
-                : warningType !== WARNING_TYPE.none && warningType !== WARNING_TYPE.riskyEntryLow
-                ? 'red'
-                : warningType === WARNING_TYPE.riskyEntryLow
-                ? '#F3841E'
-                : ''
-            }
+        {!!slippageError && (
+          <RowBetween
+            style={{
+              fontSize: '14px',
+              paddingTop: '7px',
+              color: slippageError === SlippageError.InvalidInput ? 'red' : '#F3841E'
+            }}
           >
-            {warningType === WARNING_TYPE.emptyInput && 'Enter a slippage percentage'}
-            {warningType === WARNING_TYPE.invalidEntryBound && 'Please select a value no greater than 50%'}
-            {warningType === WARNING_TYPE.riskyEntryHigh && 'Your transaction may be frontrun'}
-            {warningType === WARNING_TYPE.riskyEntryLow && 'Your transaction may fail'}
-          </BottomError>
-        </RowBetween>
+            {slippageError === SlippageError.InvalidInput
+              ? 'Enter a valid slippage percentage'
+              : slippageError === SlippageError.RiskyLow
+              ? 'Your transaction may fail'
+              : 'Your transaction may be frontrun'}
+          </RowBetween>
+        )}
       </SlippageSelector>
+
       <AutoColumn gap="sm">
         <RowFixed padding={'0 20px'}>
-          <TYPE.black fontSize={14} color={theme.text2}>
+          <TYPE.black fontSize={14} fontWeight={400} color={theme.text2}>
             Deadline
           </TYPE.black>
-          <QuestionHelper text="Deadline in minutes. If your transaction takes longer than this it will revert." />
+          <QuestionHelper text="Your transaction will revert if it is pending for more than this long." />
         </RowFixed>
         <RowFixed padding={'0 20px'}>
-          <OptionCustom style={{ width: '80px' }}>
+          <OptionCustom style={{ width: '80px' }} tabIndex={-1}>
             <Input
-              tabIndex={-1}
-              placeholder={'' + deadlineInput}
+              color={!!deadlineError ? 'red' : undefined}
+              onBlur={() => {
+                parseCustomDeadline({ target: { value: (deadline / 60).toString() } })
+              }}
+              placeholder={(deadline / 60).toString()}
               value={deadlineInput}
               onChange={parseCustomDeadline}
             />

src/components/TokenLogo/index.tsx

@@ -4,7 +4,7 @@ import { isAddress } from '../../utils'
 import { useActiveWeb3React } from '../../hooks'
 import { WETH } from '@uniswap/sdk'
 
-import { ReactComponent as EthereumLogo } from '../../assets/images/ethereum-logo.svg'
+import EthereumLogo from '../../assets/images/ethereum-logo.png'
 
 const TOKEN_ICON_API = address =>
   `https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/ethereum/assets/${address}/logo.png`
@@ -28,7 +28,7 @@ const Emoji = styled.span<{ size?: string }>`
   margin-bottom: -4px;
 `
 
-const StyledEthereumLogo = styled(EthereumLogo)<{ size: string }>`
+const StyledEthereumLogo = styled.img<{ size: string }>`
   width: ${({ size }) => size};
   height: ${({ size }) => size};
   box-shadow: 0px 6px 10px rgba(0, 0, 0, 0.075);
@@ -55,7 +55,7 @@ export default function TokenLogo({
   let path = ''
   // hard code to show ETH instead of WETH in UI
   if (address === WETH[chainId].address) {
-    return <StyledEthereumLogo size={size} {...rest} />
+    return <StyledEthereumLogo src={EthereumLogo} size={size} {...rest} />
   } else if (!error && !BAD_IMAGES[address] && isAddress(address)) {
     path = TOKEN_ICON_API(address)
   } else {

src/components/TokenWarningCard/index.tsx

@@ -8,7 +8,7 @@ import { useActiveWeb3React } from '../../hooks'
 import { useAllTokens } from '../../hooks/Tokens'
 import { Field } from '../../state/swap/actions'
 import { useTokenWarningDismissal } from '../../state/user/hooks'
-import { Link, TYPE } from '../../theme'
+import { ExternalLink, TYPE } from '../../theme'
 import { getEtherscanLink } from '../../utils'
 import PropsOfExcluding from '../../utils/props-of-excluding'
 import QuestionHelper from '../QuestionHelper'
@@ -18,11 +18,11 @@ const Wrapper = styled.div<{ error: boolean }>`
   background: ${({ theme, error }) => transparentize(0.9, error ? theme.red1 : theme.yellow1)};
   position: relative;
   padding: 1rem;
-  border: 0.5px solid ${({ theme, error }) => transparentize(0.4, error ? theme.red1 : theme.yellow1)};
+  /* border: 0.5px solid ${({ theme, error }) => transparentize(0.4, error ? theme.red1 : theme.yellow1)}; */
   border-radius: 10px;
   margin-bottom: 20px;
   display: grid;
-  grid-template-rows: auto auto auto;
+  grid-template-rows: 14px auto auto;
   grid-row-gap: 14px;
 `
 
@@ -42,15 +42,15 @@ const CloseColor = styled(Close)`
 const CloseIcon = styled.div`
   position: absolute;
   right: 1rem;
-  top: 14px;
+  top: 12px;
   &:hover {
     cursor: pointer;
     opacity: 0.6;
   }
 
   & > * {
-    height: 14px;
-    width: 14px;
+    height: 16px;
+    width: 16px;
   }
 `
 
@@ -111,9 +111,9 @@ export default function TokenWarningCard({ token, ...rest }: TokenWarningCardPro
             ? `${token.name} (${token.symbol})`
             : token.name || token.symbol}
         </div>
-        <Link style={{ fontWeight: 400 }} href={getEtherscanLink(chainId, token.address, 'address')}>
+        <ExternalLink style={{ fontWeight: 400 }} href={getEtherscanLink(chainId, token.address, 'address')}>
           (View on Etherscan)
-        </Link>
+        </ExternalLink>
       </Row>
       <Row>
         <TYPE.italic>Verify this is the correct token before making any transactions.</TYPE.italic>

src/components/TxnPopup/index.tsx

@@ -8,7 +8,7 @@ import useInterval from '../../hooks/useInterval'
 import { useRemovePopup } from '../../state/application/hooks'
 import { TYPE } from '../../theme'
 
-import { Link } from '../../theme/components'
+import { ExternalLink } from '../../theme/components'
 import { getEtherscanLink } from '../../utils'
 import { AutoColumn } from '../Column'
 import { AutoRow } from '../Row'
@@ -62,7 +62,7 @@ export default function TxnPopup({
         <TYPE.body fontWeight={500}>
           {summary ? summary : 'Hash: ' + hash.slice(0, 8) + '...' + hash.slice(58, 65)}
         </TYPE.body>
-        <Link href={getEtherscanLink(chainId, hash, 'transaction')}>View on Etherscan</Link>
+        <ExternalLink href={getEtherscanLink(chainId, hash, 'transaction')}>View on Etherscan</ExternalLink>
       </AutoColumn>
       <Fader count={count} />
     </AutoRow>

src/components/WalletModal/Option.tsx

@@ -1,6 +1,6 @@
 import React from 'react'
 import styled from 'styled-components'
-import { Link } from '../../theme'
+import { ExternalLink } from '../../theme'
 
 const InfoCard = styled.button<{ active?: boolean }>`
   background-color: ${({ theme, active }) => (active ? theme.bg3 : theme.bg2)};
@@ -134,7 +134,7 @@ export default function Option({
     </OptionCardClickable>
   )
   if (link) {
-    return <Link href={link}>{content}</Link>
+    return <ExternalLink href={link}>{content}</ExternalLink>
   }
 
   return content

src/components/WalletModal/PendingView.tsx

@@ -5,9 +5,8 @@ import Option from './Option'
 import { SUPPORTED_WALLETS } from '../../constants'
 import WalletConnectData from './WalletConnectData'
 import { walletconnect, injected } from '../../connectors'
-import { Spinner } from '../../theme'
-import Circle from '../../assets/images/circle.svg'
 import { darken } from 'polished'
+import Loader from '../Loader'
 
 const PendingSection = styled.div`
   ${({ theme }) => theme.flexColumnNoWrap};
@@ -19,14 +18,8 @@ const PendingSection = styled.div`
   }
 `
 
-const SpinnerWrapper = styled(Spinner)`
-  font-size: 4rem;
+const StyledLoader = styled(Loader)`
   margin-right: 1rem;
-  svg {
-    path {
-      color: ${({ theme }) => theme.bg4};
-    }
-  }
 `
 
 const LoadingMessage = styled.div<{ error?: boolean }>`
@@ -93,7 +86,7 @@ export default function PendingView({
       {!error && connector === walletconnect && <WalletConnectData size={size} uri={uri} />}
       <LoadingMessage error={error}>
         <LoadingWrapper>
-          {!error && <SpinnerWrapper src={Circle} />}
+          {!error && <StyledLoader />}
           {error ? (
             <ErrorGroup>
               <div>Error connecting.</div>

src/components/WalletModal/index.tsx

@@ -4,6 +4,7 @@ import styled from 'styled-components'
 import { isMobile } from 'react-device-detect'
 import { UnsupportedChainIdError, useWeb3React } from '@web3-react/core'
 import { URI_AVAILABLE } from '@web3-react/walletconnect-connector'
+import usePrevious from '../../hooks/usePrevious'
 import { useWalletModalOpen, useWalletModalToggle } from '../../state/application/hooks'
 
 import Modal from '../Modal'
@@ -11,8 +12,7 @@ import AccountDetails from '../AccountDetails'
 import PendingView from './PendingView'
 import Option from './Option'
 import { SUPPORTED_WALLETS } from '../../constants'
-import { usePrevious } from '../../hooks'
-import { Link } from '../../theme'
+import { ExternalLink } from '../../theme'
 import MetamaskIcon from '../../assets/images/metamask.png'
 import { ReactComponent as Close } from '../../assets/images/x.svg'
 import { injected, walletconnect, fortmatic, portis } from '../../connectors'
@@ -358,9 +358,9 @@ export default function WalletModal({
           {walletView !== WALLET_VIEWS.PENDING && (
             <Blurb>
               <span>New to Ethereum? &nbsp;</span>{' '}
-              <Link href="https://ethereum.org/use/#3-what-is-a-wallet-and-which-one-should-i-use">
+              <ExternalLink href="https://ethereum.org/use/#3-what-is-a-wallet-and-which-one-should-i-use">
                 Learn more about wallets
-              </Link>
+              </ExternalLink>
             </Blurb>
           )}
         </ContentWrapper>

src/components/Web3ReactManager/index.tsx

@@ -5,9 +5,8 @@ import { useTranslation } from 'react-i18next'
 
 import { network } from '../../connectors'
 import { useEagerConnect, useInactiveListener } from '../../hooks'
-import { Spinner } from '../../theme'
-import Circle from '../../assets/images/circle.svg'
 import { NetworkContextName } from '../../constants'
+import Loader from '../Loader'
 
 const MessageWrapper = styled.div`
   display: flex;
@@ -20,16 +19,6 @@ const Message = styled.h2`
   color: ${({ theme }) => theme.secondary1};
 `
 
-const SpinnerWrapper = styled(Spinner)`
-  font-size: 4rem;
-
-  svg {
-    path {
-      color: ${({ theme }) => theme.secondary1};
-    }
-  }
-`
-
 export default function Web3ReactManager({ children }) {
   const { t } = useTranslation()
   const { active } = useWeb3React()
@@ -45,20 +34,6 @@ export default function Web3ReactManager({ children }) {
     }
   }, [triedEager, networkActive, networkError, activateNetwork, active])
 
-  // 'pause' the network connector if we're ever connected to an account and it's active
-  useEffect(() => {
-    if (active && networkActive) {
-      network.pause()
-    }
-  }, [active, networkActive])
-
-  // 'resume' the network connector if we're ever not connected to an account and it's active
-  useEffect(() => {
-    if (!active && networkActive) {
-      network.resume()
-    }
-  }, [active, networkActive])
-
   // when there's no account connected, react to logins (broadly speaking) on the injected provider, if it exists
   useInactiveListener(!triedEager)
 
@@ -92,7 +67,7 @@ export default function Web3ReactManager({ children }) {
   if (!active && !networkActive) {
     return showLoader ? (
       <MessageWrapper>
-        <SpinnerWrapper src={Circle} />
+        <Loader />
       </MessageWrapper>
     ) : null
   }

src/components/Web3Status/index.tsx

@@ -4,6 +4,7 @@ import { useTranslation } from 'react-i18next'
 import { useWeb3React, UnsupportedChainIdError } from '@web3-react/core'
 import { darken, lighten } from 'polished'
 import { Activity } from 'react-feather'
+import useENSName from '../../hooks/useENSName'
 import { useWalletModalToggle } from '../../state/application/hooks'
 import { TransactionDetails } from '../../state/transactions/reducer'
 
@@ -15,19 +16,12 @@ import FortmaticIcon from '../../assets/images/fortmaticIcon.png'
 import WalletConnectIcon from '../../assets/images/walletConnectIcon.svg'
 import CoinbaseWalletIcon from '../../assets/images/coinbaseWalletIcon.svg'
 
-import { Spinner } from '../../theme'
-import LightCircle from '../../assets/svg/lightcircle.svg'
-
 import { RowBetween } from '../Row'
-import { useENSName } from '../../hooks'
 import { shortenAddress } from '../../utils'
 import { useAllTransactions } from '../../state/transactions/hooks'
 import { NetworkContextName } from '../../constants'
 import { injected, walletconnect, walletlink, fortmatic, portis } from '../../connectors'
-
-const SpinnerWrapper = styled(Spinner)`
-  margin: 0 0.25rem 0 0.25rem;
-`
+import Loader from '../Loader'
 
 const IconWrapper = styled.div<{ size?: number }>`
   ${({ theme }) => theme.flexColumnNoWrap};
@@ -189,7 +183,7 @@ export default function Web3Status() {
         <Web3StatusConnected id="web3-status-connected" onClick={toggleWalletModal} pending={hasPendingTransactions}>
           {hasPendingTransactions ? (
             <RowBetween>
-              <Text>{pending?.length} Pending</Text> <SpinnerWrapper src={LightCircle} alt="loader" />
+              <Text>{pending?.length} Pending</Text> <Loader stroke="white" />
             </RowBetween>
           ) : (
             <Text>{ENSName || shortenAddress(account)}</Text>

src/components/swap/AdvancedSwapDetails.tsx

@@ -13,42 +13,23 @@ import { RowBetween, RowFixed } from '../Row'
 import SlippageTabs, { SlippageTabsProps } from '../SlippageTabs'
 import FormattedPriceImpact from './FormattedPriceImpact'
 import TokenLogo from '../TokenLogo'
+import flatMap from 'lodash.flatmap'
 
-export interface AdvancedSwapDetailsProps extends SlippageTabsProps {
-  trade: Trade
-  onDismiss: () => void
-}
-
-export function AdvancedSwapDetails({ trade, onDismiss, ...slippageTabProps }: AdvancedSwapDetailsProps) {
-  const { priceImpactWithoutFee, realizedLPFee } = computeTradePriceBreakdown(trade)
+function TradeSummary({ trade, allowedSlippage }: { trade: Trade; allowedSlippage: number }) {
   const theme = useContext(ThemeContext)
+  const { priceImpactWithoutFee, realizedLPFee } = computeTradePriceBreakdown(trade)
   const isExactIn = trade.tradeType === TradeType.EXACT_INPUT
-  const slippageAdjustedAmounts = computeSlippageAdjustedAmounts(trade, slippageTabProps.rawSlippage)
+  const slippageAdjustedAmounts = computeSlippageAdjustedAmounts(trade, allowedSlippage)
 
   return (
-    <AutoColumn gap="md">
-      <CursorPointer>
-        <RowBetween onClick={onDismiss} padding={'8px 20px'}>
-          <Text fontSize={16} color={theme.text2} fontWeight={500} style={{ userSelect: 'none' }}>
-            Hide Advanced
-          </Text>
-          <ChevronUp color={theme.text2} />
-        </RowBetween>
-      </CursorPointer>
-      <SectionBreak />
+    <>
       <AutoColumn style={{ padding: '0 20px' }}>
         <RowBetween>
           <RowFixed>
             <TYPE.black fontSize={14} fontWeight={400} color={theme.text2}>
               {isExactIn ? 'Minimum received' : 'Maximum sold'}
             </TYPE.black>
-            <QuestionHelper
-              text={
-                isExactIn
-                  ? 'Price can change between when a transaction is submitted and when it is executed. This is the minimum amount you will receive. A worse rate will cause your transaction to revert.'
-                  : 'Price can change between when a transaction is submitted and when it is executed. This is the maximum amount you will pay. A worse rate will cause your transaction to revert.'
-              }
-            />
+            <QuestionHelper text="Your transaction will revert if there is a large, unfavorable price movement before it is confirmed." />
           </RowFixed>
           <RowFixed>
             <TYPE.black color={theme.text1} fontSize={14}>
@@ -82,16 +63,36 @@ export function AdvancedSwapDetails({ trade, onDismiss, ...slippageTabProps }: A
       </AutoColumn>
 
       <SectionBreak />
+    </>
+  )
+}
+
+export interface AdvancedSwapDetailsProps extends SlippageTabsProps {
+  trade?: Trade
+  onDismiss: () => void
+}
+
+export function AdvancedSwapDetails({ trade, onDismiss, ...slippageTabProps }: AdvancedSwapDetailsProps) {
+  const theme = useContext(ThemeContext)
+
+  return (
+    <AutoColumn gap="md">
+      <CursorPointer>
+        <RowBetween onClick={onDismiss} padding={'8px 20px'}>
+          <Text fontSize={16} color={theme.text2} fontWeight={500} style={{ userSelect: 'none' }}>
+            Hide Advanced
+          </Text>
+          <ChevronUp color={theme.text2} />
+        </RowBetween>
+      </CursorPointer>
+
+      <SectionBreak />
+
+      {trade && <TradeSummary trade={trade} allowedSlippage={slippageTabProps.rawSlippage} />}
 
-      <RowFixed padding={'0 20px'}>
-        <TYPE.black fontWeight={400} fontSize={14} color={theme.text2}>
-          Set slippage tolerance
-        </TYPE.black>
-        <QuestionHelper text="Your transaction will revert if the execution price changes by more than this amount after you submit your trade." />
-      </RowFixed>
       <SlippageTabs {...slippageTabProps} />
 
-      {trade.route.path.length > 2 && (
+      {trade?.route?.path?.length > 2 && (
         <AutoColumn style={{ padding: '0 20px' }}>
           <RowFixed>
             <TYPE.black fontSize={14} fontWeight={400} color={theme.text2}>
@@ -109,27 +110,28 @@ export function AdvancedSwapDetails({ trade, onDismiss, ...slippageTabProps }: A
             justifyContent="space-evenly"
             alignItems="center"
           >
-            {trade.route.path
+            {flatMap(
+              trade.route.path,
               // add a null in-between each item
-              .flatMap((token, i, array) => {
+              (token, i, array) => {
                 const lastItem = i === array.length - 1
                 return lastItem ? [token] : [token, null]
-              })
-              .map((token, i) => {
-                // use null as an indicator to insert chevrons
-                if (token === null) {
-                  return <ChevronRight key={i} color={theme.text2} />
-                } else {
-                  return (
-                    <Flex my="0.5rem" alignItems="center" key={token.address} style={{ flexShrink: 0 }}>
-                      <TokenLogo address={token.address} size="1.5rem" />
-                      <TYPE.black fontSize={14} color={theme.text1} ml="0.5rem">
-                        {token.symbol}
-                      </TYPE.black>
-                    </Flex>
-                  )
-                }
-              })}
+              }
+            ).map((token, i) => {
+              // use null as an indicator to insert chevrons
+              if (token === null) {
+                return <ChevronRight key={i} color={theme.text2} />
+              } else {
+                return (
+                  <Flex my="0.5rem" alignItems="center" key={token.address} style={{ flexShrink: 0 }}>
+                    <TokenLogo address={token.address} size="1.5rem" />
+                    <TYPE.black fontSize={14} color={theme.text1} ml="0.5rem">
+                      {token.symbol}
+                    </TYPE.black>
+                  </Flex>
+                )
+              }
+            })}
           </Flex>
         </AutoColumn>
       )}

src/components/swap/AdvancedSwapDetailsDropdown.tsx

@@ -1,30 +1,23 @@
-import { Percent } from '@uniswap/sdk'
 import React, { useContext } from 'react'
 import { ChevronDown } from 'react-feather'
 import { Text } from 'rebass'
 import { ThemeContext } from 'styled-components'
 import { CursorPointer } from '../../theme'
-import { warningServerity } from '../../utils/prices'
-import { AutoColumn } from '../Column'
 import { RowBetween } from '../Row'
 import { AdvancedSwapDetails, AdvancedSwapDetailsProps } from './AdvancedSwapDetails'
-import { PriceSlippageWarningCard } from './PriceSlippageWarningCard'
-import { AdvancedDropwdown, FixedBottom } from './styleds'
+import { AdvancedDropdown } from './styleds'
 
 export default function AdvancedSwapDetailsDropdown({
-  priceImpactWithoutFee,
   showAdvanced,
   setShowAdvanced,
   ...rest
 }: Omit<AdvancedSwapDetailsProps, 'onDismiss'> & {
   showAdvanced: boolean
   setShowAdvanced: (showAdvanced: boolean) => void
-  priceImpactWithoutFee: Percent
 }) {
   const theme = useContext(ThemeContext)
-  const severity = warningServerity(priceImpactWithoutFee)
   return (
-    <AdvancedDropwdown>
+    <AdvancedDropdown>
       {showAdvanced ? (
         <AdvancedSwapDetails {...rest} onDismiss={() => setShowAdvanced(false)} />
       ) : (
@@ -37,11 +30,6 @@ export default function AdvancedSwapDetailsDropdown({
           </RowBetween>
         </CursorPointer>
       )}
-      <FixedBottom>
-        <AutoColumn gap="lg">
-          {severity > 2 && <PriceSlippageWarningCard priceSlippage={priceImpactWithoutFee} />}
-        </AutoColumn>
-      </FixedBottom>
-    </AdvancedDropwdown>
+    </AdvancedDropdown>
   )
 }

src/components/swap/FormattedPriceImpact.tsx

@@ -1,12 +1,12 @@
 import { Percent } from '@uniswap/sdk'
 import React from 'react'
 import { ONE_BIPS } from '../../constants'
-import { warningServerity } from '../../utils/prices'
+import { warningSeverity } from '../../utils/prices'
 import { ErrorText } from './styleds'
 
 export default function FormattedPriceImpact({ priceImpact }: { priceImpact?: Percent }) {
   return (
-    <ErrorText fontWeight={500} fontSize={14} severity={warningServerity(priceImpact)}>
+    <ErrorText fontWeight={500} fontSize={14} severity={warningSeverity(priceImpact)}>
       {priceImpact?.lessThan(ONE_BIPS) ? '<0.01%' : `${priceImpact?.toFixed(2)}%` ?? '-'}
     </ErrorText>
   )

src/components/swap/SwapModalFooter.tsx

@@ -37,6 +37,11 @@ export default function SwapModalFooter({
   confirmText: string
 }) {
   const theme = useContext(ThemeContext)
+
+  if (!trade) {
+    return null
+  }
+
   return (
     <>
       <AutoColumn gap="0px">
@@ -66,9 +71,9 @@ export default function SwapModalFooter({
         <RowBetween>
           <RowFixed>
             <TYPE.black fontSize={14} fontWeight={400} color={theme.text2}>
-              {trade?.tradeType === TradeType.EXACT_INPUT ? 'Min sent' : 'Maximum sold'}
+              {trade?.tradeType === TradeType.EXACT_INPUT ? 'Minimum sent' : 'Maximum sold'}
             </TYPE.black>
-            <QuestionHelper text="A boundary is set so you are protected from large price movements after you submit your trade." />
+            <QuestionHelper text="Your transaction will revert if there is a large, unfavorable price movement before it is confirmed." />
           </RowFixed>
           <RowFixed>
             <TYPE.black fontSize={14}>

src/components/swap/SwapModalHeader.tsx

@@ -11,29 +11,30 @@ import TokenLogo from '../TokenLogo'
 import { TruncatedText } from './styleds'
 
 export default function SwapModalHeader({
-  formattedAmounts,
   tokens,
+  formattedAmounts,
   slippageAdjustedAmounts,
   priceImpactSeverity,
   independentField
 }: {
-  formattedAmounts?: { [field in Field]?: string }
-  tokens?: { [field in Field]?: Token }
-  slippageAdjustedAmounts?: { [field in Field]?: TokenAmount }
+  tokens: { [field in Field]?: Token }
+  formattedAmounts: { [field in Field]?: string }
+  slippageAdjustedAmounts: { [field in Field]?: TokenAmount }
   priceImpactSeverity: number
   independentField: Field
 }) {
   const theme = useContext(ThemeContext)
+
   return (
     <AutoColumn gap={'md'} style={{ marginTop: '20px' }}>
       <RowBetween align="flex-end">
         <TruncatedText fontSize={24} fontWeight={500}>
-          {!!formattedAmounts[Field.INPUT] && formattedAmounts[Field.INPUT]}
+          {formattedAmounts[Field.INPUT]}
         </TruncatedText>
         <RowFixed gap="4px">
           <TokenLogo address={tokens[Field.INPUT]?.address} size={'24px'} />
           <Text fontSize={24} fontWeight={500} style={{ marginLeft: '10px' }}>
-            {tokens[Field.INPUT]?.symbol || ''}
+            {tokens[Field.INPUT]?.symbol}
           </Text>
         </RowFixed>
       </RowBetween>
@@ -42,12 +43,12 @@ export default function SwapModalHeader({
       </RowFixed>
       <RowBetween align="flex-end">
         <TruncatedText fontSize={24} fontWeight={500} color={priceImpactSeverity > 2 ? theme.red1 : ''}>
-          {!!formattedAmounts[Field.OUTPUT] && formattedAmounts[Field.OUTPUT]}
+          {formattedAmounts[Field.OUTPUT]}
         </TruncatedText>
         <RowFixed gap="4px">
           <TokenLogo address={tokens[Field.OUTPUT]?.address} size={'24px'} />
           <Text fontSize={24} fontWeight={500} style={{ marginLeft: '10px' }}>
-            {tokens[Field.OUTPUT]?.symbol || ''}
+            {tokens[Field.OUTPUT]?.symbol}
           </Text>
         </RowFixed>
       </RowBetween>
@@ -56,7 +57,7 @@ export default function SwapModalHeader({
           <TYPE.italic textAlign="left" style={{ width: '100%' }}>
             {`Output is estimated. You will receive at least `}
             <b>
-              {slippageAdjustedAmounts[Field.OUTPUT]?.toSignificant(6)} {tokens[Field.OUTPUT]?.symbol}{' '}
+              {slippageAdjustedAmounts[Field.OUTPUT]?.toSignificant(6)} {tokens[Field.OUTPUT]?.symbol}
             </b>
             {' or the transaction will revert.'}
           </TYPE.italic>

src/components/swap/TransferModalHeader.tsx

@@ -2,7 +2,7 @@ import { TokenAmount } from '@uniswap/sdk'
 import React from 'react'
 import { Text } from 'rebass'
 import { useActiveWeb3React } from '../../hooks'
-import { Link, TYPE } from '../../theme'
+import { ExternalLink, TYPE } from '../../theme'
 import { getEtherscanLink } from '../../utils'
 import Copy from '../AccountDetails/Copy'
 import { AutoColumn } from '../Column'
@@ -32,21 +32,21 @@ export function TransferModalHeader({
         <AutoColumn gap="lg">
           <TYPE.blue fontSize={36}>{ENSName}</TYPE.blue>
           <AutoRow gap="10px">
-            <Link href={getEtherscanLink(chainId, ENSName, 'address')}>
+            <ExternalLink href={getEtherscanLink(chainId, ENSName, 'address')}>
               <TYPE.blue fontSize={18}>
                 {recipient?.slice(0, 8)}...{recipient?.slice(34, 42)}↗
               </TYPE.blue>
-            </Link>
+            </ExternalLink>
             <Copy toCopy={recipient} />
           </AutoRow>
         </AutoColumn>
       ) : (
         <AutoRow gap="10px">
-          <Link href={getEtherscanLink(chainId, recipient, 'address')}>
+          <ExternalLink href={getEtherscanLink(chainId, recipient, 'address')}>
             <TYPE.blue fontSize={36}>
               {recipient?.slice(0, 6)}...{recipient?.slice(36, 42)}↗
             </TYPE.blue>
-          </Link>
+          </ExternalLink>
           <Copy toCopy={recipient} />
         </AutoRow>
       )}

src/components/swap/V1TradeLink.tsx

@@ -2,7 +2,7 @@ import React, { useContext } from 'react'
 import { Text } from 'rebass'
 import { ThemeContext } from 'styled-components'
 
-import { Link } from '../../theme'
+import { ExternalLink } from '../../theme'
 import { YellowCard } from '../Card'
 import { AutoColumn } from '../Column'
 
@@ -12,10 +12,10 @@ export default function V1TradeLink({ v1TradeLinkIfBetter }: { v1TradeLinkIfBett
     <YellowCard style={{ marginTop: '12px', padding: '8px 4px' }}>
       <AutoColumn gap="sm" justify="center" style={{ alignItems: 'center', textAlign: 'center' }}>
         <Text lineHeight="145.23%;" fontSize={14} fontWeight={400} color={theme.text1}>
-          There is a better price for this trade on
-          <Link href={v1TradeLinkIfBetter}>
-            <b> Uniswap V1 ↗</b>
-          </Link>
+          There is a better price for this trade on{' '}
+          <ExternalLink href={v1TradeLinkIfBetter}>
+            <b>Uniswap V1 ↗</b>
+          </ExternalLink>
         </Text>
       </AutoColumn>
     </YellowCard>

src/components/swap/styleds.ts

@@ -21,26 +21,16 @@ export const ArrowWrapper = styled.div`
   }
 `
 
-export const FixedBottom = styled.div`
-  position: absolute;
-  margin-top: 1.5rem;
+export const AdvancedDropdown = styled.div`
+  padding-top: calc(10px + 2rem);
+  padding-bottom: 10px;
+  margin-top: -2rem;
   width: 100%;
-  margin-bottom: 40px;
-`
-
-export const AdvancedDropwdown = styled.div`
-  position: absolute;
-  margin-top: -12px;
-  max-width: 455px;
-  width: 100%;
-  margin-bottom: 100px;
-  padding: 10px 0;
-  padding-top: 36px;
+  max-width: 400px;
   border-bottom-left-radius: 20px;
   border-bottom-right-radius: 20px;
   color: ${({ theme }) => theme.text2};
   background-color: ${({ theme }) => theme.advancedBG};
-  color: ${({ theme }) => theme.text2};
   z-index: -1;
 `
 
@@ -57,7 +47,7 @@ export const BottomGrouping = styled.div`
 
 export const ErrorText = styled(Text)<{ severity?: 0 | 1 | 2 | 3 }>`
   color: ${({ theme, severity }) =>
-    severity === 3 ? theme.red1 : severity === 2 ? theme.yellow2 : severity === 1 ? theme.green1 : theme.text1};
+    severity === 3 ? theme.red1 : severity === 2 ? theme.yellow2 : severity === 1 ? theme.text1 : theme.green1};
 `
 
 export const InputGroup = styled(AutoColumn)`

src/connectors/Fortmatic.ts

@@ -1,12 +1,15 @@
+import { ChainId } from '@uniswap/sdk'
 import { FortmaticConnector as FortmaticConnectorCore } from '@web3-react/fortmatic-connector'
 
 export const OVERLAY_READY = 'OVERLAY_READY'
 
-const chainIdToNetwork = {
-  1: 'mainnet',
-  3: 'ropsten',
-  4: 'rinkeby',
-  42: 'kovan'
+type FormaticSupportedChains = Extract<ChainId, ChainId.MAINNET | ChainId.ROPSTEN | ChainId.RINKEBY | ChainId.KOVAN>
+
+const CHAIN_ID_NETWORK_ARGUMENT: { readonly [chainId in FormaticSupportedChains]: string | undefined } = {
+  [ChainId.MAINNET]: undefined,
+  [ChainId.ROPSTEN]: 'ropsten',
+  [ChainId.RINKEBY]: 'rinkeby',
+  [ChainId.KOVAN]: 'kovan'
 }
 
 export class FortmaticConnector extends FortmaticConnectorCore {
@@ -14,7 +17,11 @@ export class FortmaticConnector extends FortmaticConnectorCore {
     if (!this.fortmatic) {
       const { default: Fortmatic } = await import('fortmatic')
       const { apiKey, chainId } = this as any
-      this.fortmatic = new Fortmatic(apiKey, chainId === 1 || chainId === 4 ? undefined : chainIdToNetwork[chainId])
+      if (chainId in CHAIN_ID_NETWORK_ARGUMENT) {
+        this.fortmatic = new Fortmatic(apiKey, CHAIN_ID_NETWORK_ARGUMENT[chainId as FormaticSupportedChains])
+      } else {
+        throw new Error(`Unsupported network ID: ${chainId}`)
+      }
     }
 
     const provider = this.fortmatic.getProvider()
@@ -29,7 +36,10 @@ export class FortmaticConnector extends FortmaticConnectorCore {
       }, 200)
     })
 
-    const [account] = await Promise.all([provider.enable().then(accounts => accounts[0]), pollForOverlayReady])
+    const [account] = await Promise.all([
+      provider.enable().then((accounts: string[]) => accounts[0]),
+      pollForOverlayReady
+    ])
 
     return { provider: this.fortmatic.getProvider(), chainId: (this as any).chainId, account }
   }

src/connectors/Network.ts

@@ -1,15 +0,0 @@
-import { NetworkConnector as NetworkConnectorCore } from '@web3-react/network-connector'
-
-export class NetworkConnector extends NetworkConnectorCore {
-  pause() {
-    if ((this as any).active) {
-      ;(this as any).providers[(this as any).currentChainId].stop()
-    }
-  }
-
-  resume() {
-    if ((this as any).active) {
-      ;(this as any).providers[(this as any).currentChainId].start()
-    }
-  }
-}

src/connectors/NetworkConnector.ts

@@ -0,0 +1,105 @@
+import { ConnectorUpdate } from '@web3-react/types'
+import { AbstractConnector } from '@web3-react/abstract-connector'
+import invariant from 'tiny-invariant'
+
+interface NetworkConnectorArguments {
+  urls: { [chainId: number]: string }
+  defaultChainId?: number
+}
+
+// taken from ethers.js, compatible interface with web3 provider
+type AsyncSendable = {
+  isMetaMask?: boolean
+  host?: string
+  path?: string
+  sendAsync?: (request: any, callback: (error: any, response: any) => void) => void
+  send?: (request: any, callback: (error: any, response: any) => void) => void
+}
+
+class RequestError extends Error {
+  constructor(message: string, public code: number, public data?: unknown) {
+    super(message)
+  }
+}
+
+class MiniRpcProvider implements AsyncSendable {
+  public readonly isMetaMask: false = false
+  public readonly chainId: number
+  public readonly url: string
+  public readonly host: string
+  public readonly path: string
+
+  constructor(chainId: number, url: string) {
+    this.chainId = chainId
+    this.url = url
+    const parsed = new URL(url)
+    this.host = parsed.host
+    this.path = parsed.pathname
+  }
+
+  public readonly sendAsync = (
+    request: { jsonrpc: '2.0'; id: number | string | null; method: string; params?: unknown[] | object },
+    callback: (error: any, response: any) => void
+  ): void => {
+    this.request(request.method, request.params)
+      .then(result => callback(null, { jsonrpc: '2.0', id: request.id, result }))
+      .catch(error => callback(error, null))
+  }
+
+  public readonly request = async (method: string, params?: unknown[] | object): Promise<unknown> => {
+    const response = await fetch(this.url, {
+      method: 'POST',
+      body: JSON.stringify({
+        jsonrpc: '2.0',
+        id: 1,
+        method,
+        params
+      })
+    })
+    if (!response.ok) throw new RequestError(`${response.status}: ${response.statusText}`, -32000)
+    const body = await response.json()
+    if ('error' in body) {
+      throw new RequestError(body?.error?.message, body?.error?.code, body?.error?.data)
+    } else if ('result' in body) {
+      return body.result
+    } else {
+      throw new RequestError(`Received unexpected JSON-RPC response to ${method} request.`, -32000, body)
+    }
+  }
+}
+
+export class NetworkConnector extends AbstractConnector {
+  private readonly providers: { [chainId: number]: MiniRpcProvider }
+  private currentChainId: number
+
+  constructor({ urls, defaultChainId }: NetworkConnectorArguments) {
+    invariant(defaultChainId || Object.keys(urls).length === 1, 'defaultChainId is a required argument with >1 url')
+    super({ supportedChainIds: Object.keys(urls).map((k): number => Number(k)) })
+
+    this.currentChainId = defaultChainId || Number(Object.keys(urls)[0])
+    this.providers = Object.keys(urls).reduce<{ [chainId: number]: MiniRpcProvider }>((accumulator, chainId) => {
+      accumulator[Number(chainId)] = new MiniRpcProvider(Number(chainId), urls[Number(chainId)])
+      return accumulator
+    }, {})
+  }
+
+  public async activate(): Promise<ConnectorUpdate> {
+    return { provider: this.providers[this.currentChainId], chainId: this.currentChainId, account: null }
+  }
+
+  public async getProvider(): Promise<MiniRpcProvider> {
+    return this.providers[this.currentChainId]
+  }
+
+  public async getChainId(): Promise<number> {
+    return this.currentChainId
+  }
+
+  public async getAccount(): Promise<null> {
+    return null
+  }
+
+  public deactivate() {
+    return
+  }
+}

src/connectors/fortmatic.d.ts

@@ -0,0 +1 @@
+declare module 'formatic'

src/connectors/index.ts

@@ -3,15 +3,20 @@ import { WalletConnectConnector } from '@web3-react/walletconnect-connector'
 import { WalletLinkConnector } from '@web3-react/walletlink-connector'
 import { PortisConnector } from '@web3-react/portis-connector'
 
-import { NetworkConnector } from './Network'
 import { FortmaticConnector } from './Fortmatic'
+import { NetworkConnector } from './NetworkConnector'
 
 const POLLING_INTERVAL = 10000
 const NETWORK_URL = process.env.REACT_APP_NETWORK_URL
+const FORMATIC_KEY = process.env.REACT_APP_FORTMATIC_KEY
+const PORTIS_ID = process.env.REACT_APP_PORTIS_ID
+
+if (typeof NETWORK_URL === 'undefined') {
+  throw new Error(`REACT_APP_NETWORK_URL must be a defined environment variable`)
+}
 
 export const network = new NetworkConnector({
-  urls: { [Number(process.env.REACT_APP_CHAIN_ID)]: NETWORK_URL },
-  pollingInterval: POLLING_INTERVAL * 3
+  urls: { [Number(process.env.REACT_APP_CHAIN_ID)]: NETWORK_URL }
 })
 
 export const injected = new InjectedConnector({
@@ -28,13 +33,13 @@ export const walletconnect = new WalletConnectConnector({
 
 // mainnet only
 export const fortmatic = new FortmaticConnector({
-  apiKey: process.env.REACT_APP_FORTMATIC_KEY,
+  apiKey: FORMATIC_KEY ?? '',
   chainId: 1
 })
 
 // mainnet only
 export const portis = new PortisConnector({
-  dAppId: process.env.REACT_APP_PORTIS_ID,
+  dAppId: PORTIS_ID ?? '',
   networks: [1]
 })
 

src/connectors/tsconfig.json

@@ -0,0 +1,4 @@
+{
+  "extends": "../../tsconfig.strict.json",
+  "include": ["**/*"]
+}

src/constants/abis/erc20.ts

@@ -0,0 +1,10 @@
+import { Interface } from '@ethersproject/abi'
+import ERC20_ABI from './erc20.json'
+import ERC20_BYTES32_ABI from './erc20_bytes32.json'
+
+const ERC20_INTERFACE = new Interface(ERC20_ABI)
+
+const ERC20_BYTES32_INTERFACE = new Interface(ERC20_BYTES32_ABI)
+
+export default ERC20_INTERFACE
+export { ERC20_ABI, ERC20_BYTES32_INTERFACE, ERC20_BYTES32_ABI }

src/constants/abis/erc20_bytes32.json

@@ -3,56 +3,12 @@
     "constant": true,
     "inputs": [],
     "name": "name",
-    "outputs": [{ "name": "", "type": "bytes32" }],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [{ "name": "_spender", "type": "address" }, { "name": "_value", "type": "uint256" }],
-    "name": "approve",
-    "outputs": [{ "name": "", "type": "bool" }],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "totalSupply",
-    "outputs": [{ "name": "", "type": "uint256" }],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [
-      { "name": "_from", "type": "address" },
-      { "name": "_to", "type": "address" },
-      { "name": "_value", "type": "uint256" }
+    "outputs": [
+      {
+        "name": "",
+        "type": "bytes32"
+      }
     ],
-    "name": "transferFrom",
-    "outputs": [{ "name": "", "type": "bool" }],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [],
-    "name": "decimals",
-    "outputs": [{ "name": "", "type": "uint8" }],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [{ "name": "_owner", "type": "address" }],
-    "name": "balanceOf",
-    "outputs": [{ "name": "balance", "type": "uint256" }],
     "payable": false,
     "stateMutability": "view",
     "type": "function"
@@ -61,48 +17,14 @@
     "constant": true,
     "inputs": [],
     "name": "symbol",
-    "outputs": [{ "name": "", "type": "bytes32" }],
+    "outputs": [
+      {
+        "name": "",
+        "type": "bytes32"
+      }
+    ],
     "payable": false,
     "stateMutability": "view",
     "type": "function"
-  },
-  {
-    "constant": false,
-    "inputs": [{ "name": "_to", "type": "address" }, { "name": "_value", "type": "uint256" }],
-    "name": "transfer",
-    "outputs": [{ "name": "", "type": "bool" }],
-    "payable": false,
-    "stateMutability": "nonpayable",
-    "type": "function"
-  },
-  {
-    "constant": true,
-    "inputs": [{ "name": "_owner", "type": "address" }, { "name": "_spender", "type": "address" }],
-    "name": "allowance",
-    "outputs": [{ "name": "", "type": "uint256" }],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  { "payable": true, "stateMutability": "payable", "type": "fallback" },
-  {
-    "anonymous": false,
-    "inputs": [
-      { "indexed": true, "name": "owner", "type": "address" },
-      { "indexed": true, "name": "spender", "type": "address" },
-      { "indexed": false, "name": "value", "type": "uint256" }
-    ],
-    "name": "Approval",
-    "type": "event"
-  },
-  {
-    "anonymous": false,
-    "inputs": [
-      { "indexed": true, "name": "from", "type": "address" },
-      { "indexed": true, "name": "to", "type": "address" },
-      { "indexed": false, "name": "value", "type": "uint256" }
-    ],
-    "name": "Transfer",
-    "type": "event"
   }
 ]

src/constants/abis/migrator.json

@@ -0,0 +1,55 @@
+[
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_factoryV1",
+        "type": "address"
+      },
+      {
+        "internalType": "address",
+        "name": "_router",
+        "type": "address"
+      }
+    ],
+    "stateMutability": "nonpayable",
+    "type": "constructor"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "token",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "amountTokenMin",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "amountETHMin",
+        "type": "uint256"
+      },
+      {
+        "internalType": "address",
+        "name": "to",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "deadline",
+        "type": "uint256"
+      }
+    ],
+    "name": "migrate",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "stateMutability": "payable",
+    "type": "receive"
+  }
+]

src/constants/abis/migrator.ts

@@ -0,0 +1,5 @@
+import MIGRATOR_ABI from './migrator.json'
+
+const MIGRATOR_ADDRESS = '0x16D4F26C15f3658ec65B1126ff27DD3dF2a2996b'
+
+export { MIGRATOR_ADDRESS, MIGRATOR_ABI }

src/constants/index.ts

@@ -1,26 +1,63 @@
-import { ChainId, Token, WETH, JSBI, Percent } from '@uniswap/sdk'
+import { ChainId, JSBI, Percent, Token, WETH, Pair, TokenAmount } from '@uniswap/sdk'
+
 import { fortmatic, injected, portis, walletconnect, walletlink } from '../connectors'
 
-export const V1_FACTORY_ADDRESS = '0xc0a47dFe034B400B47bDaD5FecDa2621de6c4d95'
+export const ROUTER_ADDRESS = '0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D'
 
-export const ROUTER_ADDRESS = '0xf164fC0Ec4E93095b804a4795bBe1e041497b92a'
-
-// used for display in the default list when adding liquidity
-export const COMMON_BASES = {
+// used to construct intermediary pairs for trading
+export const BASES_TO_CHECK_TRADES_AGAINST: { readonly [chainId in ChainId]: Token[] } = {
   [ChainId.MAINNET]: [
     WETH[ChainId.MAINNET],
     new Token(ChainId.MAINNET, '0x6B175474E89094C44Da98b954EedeAC495271d0F', 18, 'DAI', 'Dai Stablecoin'),
     new Token(ChainId.MAINNET, '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', 6, 'USDC', 'USD//C')
   ],
   [ChainId.ROPSTEN]: [WETH[ChainId.ROPSTEN]],
-  [ChainId.RINKEBY]: [
-    WETH[ChainId.RINKEBY],
-    new Token(ChainId.RINKEBY, '0xc7AD46e0b8a400Bb3C915120d284AafbA8fc4735', 18, 'DAI', 'Dai Stablecoin')
-  ],
+  [ChainId.RINKEBY]: [WETH[ChainId.RINKEBY]],
   [ChainId.GÖRLI]: [WETH[ChainId.GÖRLI]],
   [ChainId.KOVAN]: [WETH[ChainId.KOVAN]]
 }
 
+// used for display in the default list when adding liquidity
+export const SUGGESTED_BASES = BASES_TO_CHECK_TRADES_AGAINST
+
+// used to construct the list of all pairs we consider by default in the frontend
+export const BASES_TO_TRACK_LIQUIDITY_FOR = BASES_TO_CHECK_TRADES_AGAINST
+
+export const DUMMY_PAIRS_TO_PIN: { readonly [chainId in ChainId]?: Pair[] } = {
+  [ChainId.MAINNET]: [
+    new Pair(
+      new TokenAmount(
+        new Token(ChainId.MAINNET, '0x5d3a536E4D6DbD6114cc1Ead35777bAB948E3643', 8, 'cDAI', 'Compound Dai'),
+        '0'
+      ),
+      new TokenAmount(
+        new Token(ChainId.MAINNET, '0x39AA39c021dfbaE8faC545936693aC917d5E7563', 8, 'cUSDC', 'Compound USD Coin'),
+        '0'
+      )
+    ),
+    new Pair(
+      new TokenAmount(
+        new Token(ChainId.MAINNET, '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', 6, 'USDC', 'USD//C'),
+        '0'
+      ),
+      new TokenAmount(
+        new Token(ChainId.MAINNET, '0xdAC17F958D2ee523a2206206994597C13D831ec7', 6, 'USDT', 'Tether USD'),
+        '0'
+      )
+    ),
+    new Pair(
+      new TokenAmount(
+        new Token(ChainId.MAINNET, '0x6B175474E89094C44Da98b954EedeAC495271d0F', 18, 'DAI', 'Dai Stablecoin'),
+        '0'
+      ),
+      new TokenAmount(
+        new Token(ChainId.MAINNET, '0xdAC17F958D2ee523a2206206994597C13D831ec7', 6, 'USDT', 'Tether USD'),
+        '0'
+      )
+    )
+  ]
+}
+
 const MAINNET_WALLETS = {
   INJECTED: {
     connector: injected,

src/constants/multicall/abi.json

@@ -0,0 +1,143 @@
+[
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getCurrentBlockTimestamp",
+    "outputs": [
+      {
+        "name": "timestamp",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "components": [
+          {
+            "name": "target",
+            "type": "address"
+          },
+          {
+            "name": "callData",
+            "type": "bytes"
+          }
+        ],
+        "name": "calls",
+        "type": "tuple[]"
+      }
+    ],
+    "name": "aggregate",
+    "outputs": [
+      {
+        "name": "blockNumber",
+        "type": "uint256"
+      },
+      {
+        "name": "returnData",
+        "type": "bytes[]"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getLastBlockHash",
+    "outputs": [
+      {
+        "name": "blockHash",
+        "type": "bytes32"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "addr",
+        "type": "address"
+      }
+    ],
+    "name": "getEthBalance",
+    "outputs": [
+      {
+        "name": "balance",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getCurrentBlockDifficulty",
+    "outputs": [
+      {
+        "name": "difficulty",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getCurrentBlockGasLimit",
+    "outputs": [
+      {
+        "name": "gaslimit",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getCurrentBlockCoinbase",
+    "outputs": [
+      {
+        "name": "coinbase",
+        "type": "address"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "blockNumber",
+        "type": "uint256"
+      }
+    ],
+    "name": "getBlockHash",
+    "outputs": [
+      {
+        "name": "blockHash",
+        "type": "bytes32"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  }
+]

src/constants/multicall/index.ts

@@ -0,0 +1,12 @@
+import { ChainId } from '@uniswap/sdk'
+import MULTICALL_ABI from './abi.json'
+
+const MULTICALL_NETWORKS: { [chainId in ChainId]: string } = {
+  [ChainId.MAINNET]: '0xeefBa1e63905eF1D7ACbA5a8513c70307C1cE441',
+  [ChainId.ROPSTEN]: '0x53C43764255c17BD724F74c4eF150724AC50a3ed',
+  [ChainId.KOVAN]: '0x2cc8688C5f75E365aaEEb4ea8D6a480405A48D2A',
+  [ChainId.RINKEBY]: '0x42Ad527de7d4e9d9d011aC45B31D8551f8Fe9821',
+  [ChainId.GÖRLI]: '0x77dCa2C955b15e9dE4dbBCf1246B4B85b651e50e'
+}
+
+export { MULTICALL_ABI, MULTICALL_NETWORKS }

src/constants/tokens/mainnet.ts

@@ -7,6 +7,7 @@ export default [
   new Token(ChainId.MAINNET, '0xD46bA6D942050d489DBd938a2C909A5d5039A161', 9, 'AMPL', 'Ampleforth'),
   new Token(ChainId.MAINNET, '0xcD62b1C403fa761BAadFC74C525ce2B51780b184', 18, 'ANJ', 'Aragon Network Juror'),
   new Token(ChainId.MAINNET, '0x960b236A07cf122663c4303350609A66A7B288C0', 18, 'ANT', 'Aragon Network Token'),
+  new Token(ChainId.MAINNET, '0x27054b13b1B798B345b591a4d22e6562d47eA75a', 4, 'AST', 'AirSwap Token'),
   new Token(ChainId.MAINNET, '0xBA11D00c5f74255f56a5E366F4F77f5A186d7f55', 18, 'BAND', 'BandToken'),
   new Token(ChainId.MAINNET, '0x0D8775F648430679A709E98d2b0Cb6250d2887EF', 18, 'BAT', 'Basic Attention Token'),
   new Token(ChainId.MAINNET, '0x107c4504cd79C5d2696Ea0030a8dD4e92601B82e', 18, 'BLT', 'Bloom Token'),
@@ -15,6 +16,7 @@ export default [
   new Token(ChainId.MAINNET, '0x4F9254C83EB525f9FCf346490bbb3ed28a81C667', 18, 'CELR', 'CelerToken'),
   new Token(ChainId.MAINNET, '0xF5DCe57282A584D2746FaF1593d3121Fcac444dC', 8, 'cSAI', 'Compound Dai'),
   new Token(ChainId.MAINNET, '0x5d3a536E4D6DbD6114cc1Ead35777bAB948E3643', 8, 'cDAI', 'Compound Dai'),
+  new Token(ChainId.MAINNET, '0x39AA39c021dfbaE8faC545936693aC917d5E7563', 8, 'cUSDC', 'Compound USD Coin'),
   new Token(ChainId.MAINNET, '0xaaAEBE6Fe48E54f431b0C390CfaF0b017d09D42d', 4, 'CEL', 'Celsius'),
   new Token(ChainId.MAINNET, '0x06AF07097C9Eeb7fD685c692751D5C66dB49c215', 18, 'CHAI', 'Chai'),
   new Token(ChainId.MAINNET, '0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359', 18, 'SAI', 'Dai Stablecoin v1.0 (SAI)'),
@@ -30,6 +32,7 @@ export default [
     'Decentralized Insurance Protocol'
   ),
   new Token(ChainId.MAINNET, '0xC0F9bD5Fa5698B6505F643900FFA515Ea5dF54A9', 18, 'DONUT', 'Donut'),
+  new Token(ChainId.MAINNET, '0x86FADb80d8D2cff3C3680819E4da99C10232Ba0F', 18, 'EBASE', 'EURBASE Stablecoin'),
   new Token(ChainId.MAINNET, '0xF629cBd94d3791C9250152BD8dfBDF380E2a3B9c', 18, 'ENJ', 'Enjin Coin'),
   new Token(ChainId.MAINNET, '0x06f65b8CfCb13a9FE37d836fE9708dA38Ecb29B2', 18, 'FAME', 'SAINT FAME: Genesis Shirt'),
   new Token(ChainId.MAINNET, '0x4946Fcea7C692606e8908002e55A582af44AC121', 18, 'FOAM', 'FOAM Token'),
@@ -76,6 +79,9 @@ export default [
   new Token(ChainId.MAINNET, '0xF970b8E36e23F7fC3FD752EeA86f8Be8D83375A6', 18, 'RCN', 'Ripio Credit Network Token'),
   new Token(ChainId.MAINNET, '0x255Aa6DF07540Cb5d3d297f0D0D4D84cb52bc8e6', 18, 'RDN', 'Raiden Token'),
   new Token(ChainId.MAINNET, '0x408e41876cCCDC0F92210600ef50372656052a38', 18, 'REN', 'Republic Token'),
+  new Token(ChainId.MAINNET, '0x459086F2376525BdCebA5bDDA135e4E9d3FeF5bf', 8, 'renBCH', 'renBCH'),
+  new Token(ChainId.MAINNET, '0xEB4C2781e4ebA804CE9a9803C67d0893436bB27D', 8, 'renBTC', 'renBTC'),
+  new Token(ChainId.MAINNET, '0x1C5db575E2Ff833E46a2E9864C22F4B22E0B37C2', 8, 'renZEC', 'renZEC'),
   new Token(ChainId.MAINNET, '0x1985365e9f78359a9B6AD760e32412f4a445E862', 18, 'REP', 'Reputation'),
   new Token(ChainId.MAINNET, '0x9469D013805bFfB7D3DEBe5E7839237e535ec483', 18, 'RING', 'Darwinia Network Native Token'),
   new Token(ChainId.MAINNET, '0x607F4C5BB672230e8672085532f7e901544a7375', 9, 'RLC', 'iEx.ec Network Token'),
@@ -90,6 +96,7 @@ export default [
   new Token(ChainId.MAINNET, '0x42d6622deCe394b54999Fbd73D108123806f6a18', 18, 'SPANK', 'SPANK'),
   new Token(ChainId.MAINNET, '0xB64ef51C888972c908CFacf59B47C1AfBC0Ab8aC', 8, 'STORJ', 'StorjToken'),
   new Token(ChainId.MAINNET, '0x57Ab1ec28D129707052df4dF418D58a2D46d5f51', 18, 'sUSD', 'Synth sUSD'),
+  new Token(ChainId.MAINNET, '0x261EfCdD24CeA98652B9700800a13DfBca4103fF', 18, 'sXAU', 'Synth sXAU'),
   new Token(ChainId.MAINNET, '0x8CE9137d39326AD0cD6491fb5CC0CbA0e089b6A9', 18, 'SXP', 'Swipe'),
   new Token(ChainId.MAINNET, '0x00006100F7090010005F1bd7aE6122c3C2CF0090', 18, 'TAUD', 'TrueAUD'),
   new Token(ChainId.MAINNET, '0x00000100F2A2bd000715001920eB70D229700085', 18, 'TCAD', 'TrueCAD'),

src/constants/v1/index.ts

@@ -0,0 +1,17 @@
+import { Interface } from '@ethersproject/abi'
+import { ChainId } from '@uniswap/sdk'
+import V1_EXCHANGE_ABI from './v1_exchange.json'
+import V1_FACTORY_ABI from './v1_factory.json'
+
+const V1_FACTORY_ADDRESSES: { [chainId in ChainId]: string } = {
+  [ChainId.MAINNET]: '0xc0a47dFe034B400B47bDaD5FecDa2621de6c4d95',
+  [ChainId.ROPSTEN]: '0x9c83dCE8CA20E9aAF9D3efc003b2ea62aBC08351',
+  [ChainId.RINKEBY]: '0xf5D915570BC477f9B8D6C0E980aA81757A3AaC36',
+  [ChainId.GÖRLI]: '0x6Ce570d02D73d4c384b46135E87f8C592A8c86dA',
+  [ChainId.KOVAN]: '0xD3E51Ef092B2845f10401a0159B2B96e8B6c3D30'
+}
+
+const V1_FACTORY_INTERFACE = new Interface(V1_FACTORY_ABI)
+const V1_EXCHANGE_INTERFACE = new Interface(V1_EXCHANGE_ABI)
+
+export { V1_FACTORY_ADDRESSES, V1_FACTORY_INTERFACE, V1_FACTORY_ABI, V1_EXCHANGE_INTERFACE, V1_EXCHANGE_ABI }

src/constants/v1/v1_exchange.json

@@ -0,0 +1,971 @@
+[
+  {
+    "name": "TokenPurchase",
+    "inputs": [
+      {
+        "type": "address",
+        "name": "buyer",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "eth_sold",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "tokens_bought",
+        "indexed": true
+      }
+    ],
+    "anonymous": false,
+    "type": "event"
+  },
+  {
+    "name": "EthPurchase",
+    "inputs": [
+      {
+        "type": "address",
+        "name": "buyer",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "tokens_sold",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "eth_bought",
+        "indexed": true
+      }
+    ],
+    "anonymous": false,
+    "type": "event"
+  },
+  {
+    "name": "AddLiquidity",
+    "inputs": [
+      {
+        "type": "address",
+        "name": "provider",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "eth_amount",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "token_amount",
+        "indexed": true
+      }
+    ],
+    "anonymous": false,
+    "type": "event"
+  },
+  {
+    "name": "RemoveLiquidity",
+    "inputs": [
+      {
+        "type": "address",
+        "name": "provider",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "eth_amount",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "token_amount",
+        "indexed": true
+      }
+    ],
+    "anonymous": false,
+    "type": "event"
+  },
+  {
+    "name": "Transfer",
+    "inputs": [
+      {
+        "type": "address",
+        "name": "_from",
+        "indexed": true
+      },
+      {
+        "type": "address",
+        "name": "_to",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "_value",
+        "indexed": false
+      }
+    ],
+    "anonymous": false,
+    "type": "event"
+  },
+  {
+    "name": "Approval",
+    "inputs": [
+      {
+        "type": "address",
+        "name": "_owner",
+        "indexed": true
+      },
+      {
+        "type": "address",
+        "name": "_spender",
+        "indexed": true
+      },
+      {
+        "type": "uint256",
+        "name": "_value",
+        "indexed": false
+      }
+    ],
+    "anonymous": false,
+    "type": "event"
+  },
+  {
+    "name": "setup",
+    "outputs": [],
+    "inputs": [
+      {
+        "type": "address",
+        "name": "token_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "addLiquidity",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "min_liquidity"
+      },
+      {
+        "type": "uint256",
+        "name": "max_tokens"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      }
+    ],
+    "constant": false,
+    "payable": true,
+    "type": "function"
+  },
+  {
+    "name": "removeLiquidity",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "outA"
+      },
+      {
+        "type": "uint256",
+        "name": "outB"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "amount"
+      },
+      {
+        "type": "uint256",
+        "name": "min_eth"
+      },
+      {
+        "type": "uint256",
+        "name": "min_tokens"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "__default__",
+    "outputs": [],
+    "inputs": [],
+    "constant": false,
+    "payable": true,
+    "type": "function"
+  },
+  {
+    "name": "ethToTokenSwapInput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "min_tokens"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      }
+    ],
+    "constant": false,
+    "payable": true,
+    "type": "function"
+  },
+  {
+    "name": "ethToTokenTransferInput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "min_tokens"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "recipient"
+      }
+    ],
+    "constant": false,
+    "payable": true,
+    "type": "function"
+  },
+  {
+    "name": "ethToTokenSwapOutput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      }
+    ],
+    "constant": false,
+    "payable": true,
+    "type": "function"
+  },
+  {
+    "name": "ethToTokenTransferOutput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "recipient"
+      }
+    ],
+    "constant": false,
+    "payable": true,
+    "type": "function"
+  },
+  {
+    "name": "tokenToEthSwapInput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "min_eth"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToEthTransferInput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "min_eth"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "recipient"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToEthSwapOutput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "eth_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "max_tokens"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToEthTransferOutput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "eth_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "max_tokens"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "recipient"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToTokenSwapInput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "min_tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "min_eth_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "token_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToTokenTransferInput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "min_tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "min_eth_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "recipient"
+      },
+      {
+        "type": "address",
+        "name": "token_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToTokenSwapOutput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "max_tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "max_eth_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "token_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToTokenTransferOutput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "max_tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "max_eth_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "recipient"
+      },
+      {
+        "type": "address",
+        "name": "token_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToExchangeSwapInput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "min_tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "min_eth_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "exchange_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToExchangeTransferInput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "min_tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "min_eth_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "recipient"
+      },
+      {
+        "type": "address",
+        "name": "exchange_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToExchangeSwapOutput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "max_tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "max_eth_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "exchange_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenToExchangeTransferOutput",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_bought"
+      },
+      {
+        "type": "uint256",
+        "name": "max_tokens_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "max_eth_sold"
+      },
+      {
+        "type": "uint256",
+        "name": "deadline"
+      },
+      {
+        "type": "address",
+        "name": "recipient"
+      },
+      {
+        "type": "address",
+        "name": "exchange_addr"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "getEthToTokenInputPrice",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "eth_sold"
+      }
+    ],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "getEthToTokenOutputPrice",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_bought"
+      }
+    ],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "getTokenToEthInputPrice",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "tokens_sold"
+      }
+    ],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "getTokenToEthOutputPrice",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "uint256",
+        "name": "eth_bought"
+      }
+    ],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "tokenAddress",
+    "outputs": [
+      {
+        "type": "address",
+        "name": "out"
+      }
+    ],
+    "inputs": [],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "factoryAddress",
+    "outputs": [
+      {
+        "type": "address",
+        "name": "out"
+      }
+    ],
+    "inputs": [],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "balanceOf",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "address",
+        "name": "_owner"
+      }
+    ],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "transfer",
+    "outputs": [
+      {
+        "type": "bool",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "address",
+        "name": "_to"
+      },
+      {
+        "type": "uint256",
+        "name": "_value"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "transferFrom",
+    "outputs": [
+      {
+        "type": "bool",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "address",
+        "name": "_from"
+      },
+      {
+        "type": "address",
+        "name": "_to"
+      },
+      {
+        "type": "uint256",
+        "name": "_value"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "approve",
+    "outputs": [
+      {
+        "type": "bool",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "address",
+        "name": "_spender"
+      },
+      {
+        "type": "uint256",
+        "name": "_value"
+      }
+    ],
+    "constant": false,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "allowance",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [
+      {
+        "type": "address",
+        "name": "_owner"
+      },
+      {
+        "type": "address",
+        "name": "_spender"
+      }
+    ],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "name",
+    "outputs": [
+      {
+        "type": "bytes32",
+        "name": "out"
+      }
+    ],
+    "inputs": [],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "symbol",
+    "outputs": [
+      {
+        "type": "bytes32",
+        "name": "out"
+      }
+    ],
+    "inputs": [],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "decimals",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  },
+  {
+    "name": "totalSupply",
+    "outputs": [
+      {
+        "type": "uint256",
+        "name": "out"
+      }
+    ],
+    "inputs": [],
+    "constant": true,
+    "payable": false,
+    "type": "function"
+  }
+]

src/constants/v1/v1_factory.json

@@ -14,8 +14,7 @@
     "inputs": [{ "type": "address", "name": "template" }],
     "constant": false,
     "payable": false,
-    "type": "function",
-    "gas": 35725
+    "type": "function"
   },
   {
     "name": "createExchange",
@@ -23,8 +22,7 @@
     "inputs": [{ "type": "address", "name": "token" }],
     "constant": false,
     "payable": false,
-    "type": "function",
-    "gas": 187911
+    "type": "function"
   },
   {
     "name": "getExchange",
@@ -32,8 +30,7 @@
     "inputs": [{ "type": "address", "name": "token" }],
     "constant": true,
     "payable": false,
-    "type": "function",
-    "gas": 715
+    "type": "function"
   },
   {
     "name": "getToken",
@@ -41,8 +38,7 @@
     "inputs": [{ "type": "address", "name": "exchange" }],
     "constant": true,
     "payable": false,
-    "type": "function",
-    "gas": 745
+    "type": "function"
   },
   {
     "name": "getTokenWithId",
@@ -50,8 +46,7 @@
     "inputs": [{ "type": "uint256", "name": "token_id" }],
     "constant": true,
     "payable": false,
-    "type": "function",
-    "gas": 736
+    "type": "function"
   },
   {
     "name": "exchangeTemplate",
@@ -59,8 +54,7 @@
     "inputs": [],
     "constant": true,
     "payable": false,
-    "type": "function",
-    "gas": 633
+    "type": "function"
   },
   {
     "name": "tokenCount",
@@ -68,7 +62,6 @@
     "inputs": [],
     "constant": true,
     "payable": false,
-    "type": "function",
-    "gas": 663
+    "type": "function"
   }
 ]

src/data/Allowances.ts

@@ -1,26 +1,17 @@
-import { Contract } from '@ethersproject/contracts'
 import { Token, TokenAmount } from '@uniswap/sdk'
-import useSWR from 'swr'
+import { useMemo } from 'react'
 
-import { SWRKeys, useKeepSWRDataLiveAsBlocksArrive } from '.'
-import { useTokenContract } from '../hooks'
+import { useTokenContract } from '../hooks/useContract'
+import { useSingleCallResult } from '../state/multicall/hooks'
 
-function getTokenAllowance(contract: Contract, token: Token): (owner: string, spender: string) => Promise<TokenAmount> {
-  return async (owner: string, spender: string): Promise<TokenAmount> =>
-    contract
-      .allowance(owner, spender)
-      .then((balance: { toString: () => string }) => new TokenAmount(token, balance.toString()))
-}
-
-export function useTokenAllowance(token?: Token, owner?: string, spender?: string): TokenAmount {
+export function useTokenAllowance(token?: Token, owner?: string, spender?: string): TokenAmount | undefined {
   const contract = useTokenContract(token?.address, false)
 
-  const shouldFetch = !!contract && typeof owner === 'string' && typeof spender === 'string'
-  const { data, mutate } = useSWR(
-    shouldFetch ? [owner, spender, token.address, token.chainId, SWRKeys.Allowances] : null,
-    getTokenAllowance(contract, token)
-  )
-  useKeepSWRDataLiveAsBlocksArrive(mutate)
+  const inputs = useMemo(() => [owner, spender], [owner, spender])
+  const allowance = useSingleCallResult(contract, 'allowance', inputs).result
 
-  return data
+  return useMemo(() => (token && allowance ? new TokenAmount(token, allowance.toString()) : undefined), [
+    token,
+    allowance
+  ])
 }

src/data/Reserves.ts

@@ -1,24 +1,10 @@
-import { Contract } from '@ethersproject/contracts'
 import { Token, TokenAmount, Pair } from '@uniswap/sdk'
-import useSWR from 'swr'
+import { useMemo } from 'react'
+import { abi as IUniswapV2PairABI } from '@uniswap/v2-core/build/IUniswapV2Pair.json'
+import { Interface } from '@ethersproject/abi'
 
-import { SWRKeys, useKeepSWRDataLiveAsBlocksArrive } from '.'
-import { usePairContract } from '../hooks'
-
-function getReserves(contract: Contract, tokenA: Token, tokenB: Token): () => Promise<Pair | null> {
-  return async (): Promise<Pair | null> =>
-    contract
-      .getReserves()
-      .then(
-        ({ reserve0, reserve1 }: { reserve0: { toString: () => string }; reserve1: { toString: () => string } }) => {
-          const [token0, token1] = tokenA.sortsBefore(tokenB) ? [tokenA, tokenB] : [tokenB, tokenA]
-          return new Pair(new TokenAmount(token0, reserve0.toString()), new TokenAmount(token1, reserve1.toString()))
-        }
-      )
-      .catch(() => {
-        return null
-      })
-}
+import { usePairContract } from '../hooks/useContract'
+import { useSingleCallResult, useMultipleContractSingleData } from '../state/multicall/hooks'
 
 /*
  * if loading, return undefined
@@ -26,13 +12,42 @@ function getReserves(contract: Contract, tokenA: Token, tokenB: Token): () => Pr
  * if pair already created (even if 0 reserves), return pair
  */
 export function usePair(tokenA?: Token, tokenB?: Token): undefined | Pair | null {
-  const pairAddress = !!tokenA && !!tokenB && !tokenA.equals(tokenB) ? Pair.getAddress(tokenA, tokenB) : undefined
+  const pairAddress = tokenA && tokenB && !tokenA.equals(tokenB) ? Pair.getAddress(tokenA, tokenB) : undefined
   const contract = usePairContract(pairAddress, false)
+  const { result: reserves, loading } = useSingleCallResult(contract, 'getReserves')
 
-  const shouldFetch = !!contract
-  const key = shouldFetch ? [pairAddress, tokenA.chainId, SWRKeys.Reserves] : null
-  const { data, mutate } = useSWR(key, getReserves(contract, tokenA, tokenB))
-  useKeepSWRDataLiveAsBlocksArrive(mutate)
-
-  return data
+  return useMemo(() => {
+    if (loading || !tokenA || !tokenB) return undefined
+    if (!reserves) return null
+    const { reserve0, reserve1 } = reserves
+    const [token0, token1] = tokenA.sortsBefore(tokenB) ? [tokenA, tokenB] : [tokenB, tokenA]
+    return new Pair(new TokenAmount(token0, reserve0.toString()), new TokenAmount(token1, reserve1.toString()))
+  }, [loading, reserves, tokenA, tokenB])
+}
+
+const PAIR_INTERFACE = new Interface(IUniswapV2PairABI)
+export function usePairs(tokens: [Token | undefined, Token | undefined][]): (undefined | Pair | null)[] {
+  const pairAddresses = useMemo(
+    () =>
+      tokens.map(([tokenA, tokenB]) => {
+        return tokenA && tokenB && !tokenA.equals(tokenB) ? Pair.getAddress(tokenA, tokenB) : undefined
+      }),
+    [tokens]
+  )
+
+  const results = useMultipleContractSingleData(pairAddresses, PAIR_INTERFACE, 'getReserves')
+
+  return useMemo(() => {
+    return results.map((result, i) => {
+      const { result: reserves, loading } = result
+      const tokenA = tokens[i][0]
+      const tokenB = tokens[i][1]
+
+      if (loading || !tokenA || !tokenB) return undefined
+      if (!reserves) return null
+      const { reserve0, reserve1 } = reserves
+      const [token0, token1] = tokenA.sortsBefore(tokenB) ? [tokenA, tokenB] : [tokenB, tokenA]
+      return new Pair(new TokenAmount(token0, reserve0.toString()), new TokenAmount(token1, reserve1.toString()))
+    })
+  }, [results, tokens])
 }

src/data/TotalSupply.ts

@@ -1,26 +1,14 @@
-import { Contract } from '@ethersproject/contracts'
+import { BigNumber } from '@ethersproject/bignumber'
 import { Token, TokenAmount } from '@uniswap/sdk'
-import useSWR from 'swr'
+import { useTokenContract } from '../hooks/useContract'
+import { useSingleCallResult } from '../state/multicall/hooks'
 
-import { SWRKeys, useKeepSWRDataLiveAsBlocksArrive } from '.'
-import { useTokenContract } from '../hooks'
-
-function getTotalSupply(contract: Contract, token: Token): () => Promise<TokenAmount> {
-  return async (): Promise<TokenAmount> =>
-    contract
-      .totalSupply()
-      .then((totalSupply: { toString: () => string }) => new TokenAmount(token, totalSupply.toString()))
-}
-
-export function useTotalSupply(token?: Token): TokenAmount {
+// returns undefined if input token is undefined, or fails to get token contract,
+// or contract total supply cannot be fetched
+export function useTotalSupply(token?: Token): TokenAmount | undefined {
   const contract = useTokenContract(token?.address, false)
 
-  const shouldFetch = !!contract
-  const { data, mutate } = useSWR(
-    shouldFetch ? [token.address, token.chainId, SWRKeys.TotalSupply] : null,
-    getTotalSupply(contract, token)
-  )
-  useKeepSWRDataLiveAsBlocksArrive(mutate)
+  const totalSupply: BigNumber = useSingleCallResult(contract, 'totalSupply')?.result?.[0]
 
-  return data
+  return token && totalSupply ? new TokenAmount(token, totalSupply.toString()) : undefined
 }

src/data/V1.ts

@@ -1,66 +1,100 @@
-import { Contract } from '@ethersproject/contracts'
-import { Token, TokenAmount, Pair, Trade, ChainId, WETH, Route, TradeType, Percent } from '@uniswap/sdk'
-import useSWR from 'swr'
+import { ChainId, JSBI, Pair, Percent, Route, Token, TokenAmount, Trade, TradeType, WETH } from '@uniswap/sdk'
+import { useMemo } from 'react'
 import { useActiveWeb3React } from '../hooks'
-import { useV1FactoryContract } from '../hooks'
-import { SWRKeys } from '.'
-import { useETHBalances, useTokenBalances } from '../state/wallet/hooks'
-
-function getV1PairAddress(contract: Contract): (tokenAddress: string) => Promise<string> {
-  return async (tokenAddress: string): Promise<string> => contract.getExchange(tokenAddress)
-}
-
-function useV1PairAddress(tokenAddress: string) {
-  const { chainId } = useActiveWeb3React()
+import { useAllTokens } from '../hooks/Tokens'
+import { useV1FactoryContract } from '../hooks/useContract'
+import { NEVER_RELOAD, useSingleCallResult, useSingleContractMultipleData } from '../state/multicall/hooks'
+import { useETHBalances, useTokenBalance, useTokenBalances } from '../state/wallet/hooks'
 
+function useV1PairAddress(tokenAddress?: string): string | undefined {
   const contract = useV1FactoryContract()
 
-  const shouldFetch = chainId === ChainId.MAINNET && typeof tokenAddress === 'string' && !!contract
-  const { data } = useSWR(shouldFetch ? [tokenAddress, SWRKeys.V1PairAddress] : null, getV1PairAddress(contract), {
-    // don't need to update this data
-    revalidateOnFocus: false,
-    revalidateOnReconnect: false
-  })
-
-  return data
+  const inputs = useMemo(() => [tokenAddress], [tokenAddress])
+  return useSingleCallResult(contract, 'getExchange', inputs)?.result?.[0]
 }
 
-function useMockV1Pair(token?: Token) {
+class MockV1Pair extends Pair {
+  readonly isV1: true = true
+}
+
+function useMockV1Pair(token?: Token): MockV1Pair | undefined {
   const isWETH = token?.equals(WETH[token?.chainId])
 
   // will only return an address on mainnet, and not for WETH
   const v1PairAddress = useV1PairAddress(isWETH ? undefined : token?.address)
-  const tokenBalance = useTokenBalances(v1PairAddress, [token])[token?.address]
-  const ETHBalance = useETHBalances([v1PairAddress])[v1PairAddress]
+  const tokenBalance = useTokenBalance(v1PairAddress, token)
+  const ETHBalance = useETHBalances([v1PairAddress])[v1PairAddress ?? '']
 
-  return tokenBalance && ETHBalance
-    ? new Pair(tokenBalance, new TokenAmount(WETH[token?.chainId], ETHBalance.toString()))
+  return tokenBalance && ETHBalance && token
+    ? new MockV1Pair(tokenBalance, new TokenAmount(WETH[token.chainId], ETHBalance.toString()))
     : undefined
 }
 
+// returns all v1 exchange addresses in the user's token list
+export function useAllTokenV1Exchanges(): { [exchangeAddress: string]: Token } {
+  const allTokens = useAllTokens()
+  const factory = useV1FactoryContract()
+  const args = useMemo(() => Object.keys(allTokens).map(tokenAddress => [tokenAddress]), [allTokens])
+
+  const data = useSingleContractMultipleData(factory, 'getExchange', args, NEVER_RELOAD)
+
+  return useMemo(
+    () =>
+      data?.reduce<{ [exchangeAddress: string]: Token }>((memo, { result }, ix) => {
+        const token = allTokens[args[ix][0]]
+        if (result?.[0]) {
+          memo[result?.[0]] = token
+        }
+        return memo
+      }, {}) ?? {},
+    [allTokens, args, data]
+  )
+}
+
+// returns whether any of the tokens in the user's token list have liquidity on v1
+export function useUserHasLiquidityInAllTokens(): boolean | undefined {
+  const exchanges = useAllTokenV1Exchanges()
+
+  const { account, chainId } = useActiveWeb3React()
+
+  const fakeLiquidityTokens = useMemo(
+    () => (chainId ? Object.keys(exchanges).map(address => new Token(chainId, address, 18, 'UNI-V1')) : []),
+    [chainId, exchanges]
+  )
+
+  const balances = useTokenBalances(account ?? undefined, fakeLiquidityTokens)
+
+  return useMemo(
+    () =>
+      Object.keys(balances).some(tokenAddress => {
+        const b = balances[tokenAddress]?.raw
+        return b && JSBI.greaterThan(b, JSBI.BigInt(0))
+      }),
+    [balances]
+  )
+}
+
 export function useV1TradeLinkIfBetter(
   isExactIn?: boolean,
-  inputToken?: Token,
-  outputToken?: Token,
+  input?: Token,
+  output?: Token,
   exactAmount?: TokenAmount,
   v2Trade?: Trade,
   minimumDelta: Percent = new Percent('0')
-): string {
+): string | undefined {
   const { chainId } = useActiveWeb3React()
 
-  const input = inputToken
-  const output = outputToken
-  const mainnet = chainId === ChainId.MAINNET
+  const isMainnet: boolean = chainId === ChainId.MAINNET
 
   // get the mock v1 pairs
   const inputPair = useMockV1Pair(input)
   const outputPair = useMockV1Pair(output)
 
-  const inputIsWETH = mainnet && input?.equals(WETH[ChainId.MAINNET])
-  const outputIsWETH = mainnet && output?.equals(WETH[ChainId.MAINNET])
+  const inputIsWETH = isMainnet && input?.equals(WETH[ChainId.MAINNET])
+  const outputIsWETH = isMainnet && output?.equals(WETH[ChainId.MAINNET])
 
   // construct a direct or through ETH v1 route
-  let pairs: Pair[]
+  let pairs: Pair[] = []
   if (inputIsWETH && outputPair) {
     pairs = [outputPair]
   } else if (outputIsWETH && inputPair) {
@@ -71,8 +105,8 @@ export function useV1TradeLinkIfBetter(
     pairs = [inputPair, outputPair]
   }
 
-  const route = pairs && new Route(pairs, input)
-  let v1Trade: Trade
+  const route = input && pairs && pairs.length > 0 && new Route(pairs, input)
+  let v1Trade: Trade | undefined
   try {
     v1Trade =
       route && exactAmount
@@ -86,16 +120,16 @@ export function useV1TradeLinkIfBetter(
       // discount the v1 output amount by minimumDelta
       const discountedV1Output = v1Trade?.outputAmount.multiply(new Percent('1').subtract(minimumDelta))
       // check if the discounted v1 amount is still greater than v2, short-circuiting if no v2 trade exists
-      v1HasBetterTrade = !!!v2Trade || discountedV1Output.greaterThan(v2Trade.outputAmount)
+      v1HasBetterTrade = !v2Trade || discountedV1Output.greaterThan(v2Trade.outputAmount)
     } else {
       // inflate the v1 amount by minimumDelta
       const inflatedV1Input = v1Trade?.inputAmount.multiply(new Percent('1').add(minimumDelta))
       // check if the inflated v1 amount is still less than v2, short-circuiting if no v2 trade exists
-      v1HasBetterTrade = !!!v2Trade || inflatedV1Input.lessThan(v2Trade.inputAmount)
+      v1HasBetterTrade = !v2Trade || inflatedV1Input.lessThan(v2Trade.inputAmount)
     }
   }
 
-  return v1HasBetterTrade
+  return v1HasBetterTrade && input && output
     ? `https://v1.uniswap.exchange/swap?inputCurrency=${inputIsWETH ? 'ETH' : input.address}&outputCurrency=${
         outputIsWETH ? 'ETH' : output.address
       }`

src/data/index.ts

@@ -1,24 +0,0 @@
-import { useEffect, useRef } from 'react'
-import { responseInterface } from 'swr'
-
-import { useBlockNumber } from '../state/application/hooks'
-
-export enum SWRKeys {
-  Allowances,
-  Reserves,
-  TotalSupply,
-  V1PairAddress
-}
-
-export function useKeepSWRDataLiveAsBlocksArrive(mutate: responseInterface<any, any>['mutate']) {
-  // because we don't care about the referential identity of mutate, just bind it to a ref
-  const mutateRef = useRef(mutate)
-  useEffect(() => {
-    mutateRef.current = mutate
-  })
-  // then, whenever a new block arrives, trigger a mutation
-  const blockNumber = useBlockNumber()
-  useEffect(() => {
-    mutateRef.current()
-  }, [blockNumber])
-}

src/data/tsconfig.json

@@ -0,0 +1,4 @@
+{
+  "extends": "../../tsconfig.strict.json",
+  "include": ["**/*"]
+}

src/hooks/Tokens.ts

@@ -1,10 +1,13 @@
+import { parseBytes32String } from '@ethersproject/strings'
 import { ChainId, Token, WETH } from '@uniswap/sdk'
 import { useEffect, useMemo } from 'react'
 import { ALL_TOKENS } from '../constants/tokens'
-import { useAddUserToken, useFetchTokenByAddress, useUserAddedTokens } from '../state/user/hooks'
+import { NEVER_RELOAD, useSingleCallResult } from '../state/multicall/hooks'
+import { useAddUserToken, useUserAddedTokens } from '../state/user/hooks'
 import { isAddress } from '../utils'
 
 import { useActiveWeb3React } from './index'
+import { useBytes32TokenContract, useTokenContract } from './useContract'
 
 export function useAllTokens(): { [address: string]: Token } {
   const { chainId } = useActiveWeb3React()
@@ -35,36 +38,83 @@ export function useAllTokens(): { [address: string]: Token } {
   }, [userAddedTokens, chainId])
 }
 
-export function useToken(tokenAddress?: string): Token | undefined {
+// parse a name or symbol from a token response
+const BYTES32_REGEX = /^0x[a-fA-F0-9]{64}$/
+function parseStringOrBytes32(str: string | undefined, bytes32: string | undefined, defaultValue: string): string {
+  return str && str.length > 0
+    ? str
+    : bytes32 && BYTES32_REGEX.test(bytes32)
+    ? parseBytes32String(bytes32)
+    : defaultValue
+}
+
+// undefined if invalid or does not exist
+// null if loading
+// otherwise returns the token
+export function useToken(tokenAddress?: string): Token | undefined | null {
+  const { chainId } = useActiveWeb3React()
   const tokens = useAllTokens()
+
+  const address = isAddress(tokenAddress)
+
+  const tokenContract = useTokenContract(address ? address : undefined, false)
+  const tokenContractBytes32 = useBytes32TokenContract(address ? address : undefined, false)
+  const token: Token | undefined = address ? tokens[address] : undefined
+
+  const tokenName = useSingleCallResult(token ? undefined : tokenContract, 'name', undefined, NEVER_RELOAD)
+  const tokenNameBytes32 = useSingleCallResult(
+    token ? undefined : tokenContractBytes32,
+    'name',
+    undefined,
+    NEVER_RELOAD
+  )
+  const symbol = useSingleCallResult(token ? undefined : tokenContract, 'symbol', undefined, NEVER_RELOAD)
+  const symbolBytes32 = useSingleCallResult(token ? undefined : tokenContractBytes32, 'symbol', undefined, NEVER_RELOAD)
+  const decimals = useSingleCallResult(token ? undefined : tokenContract, 'decimals', undefined, NEVER_RELOAD)
+
   return useMemo(() => {
-    const validatedAddress = isAddress(tokenAddress)
-    if (!validatedAddress) return
-    return tokens[validatedAddress]
-  }, [tokens, tokenAddress])
+    if (token) return token
+    if (!chainId || !address) return undefined
+    if (decimals.loading || symbol.loading || tokenName.loading) return null
+    if (decimals.result) {
+      return new Token(
+        chainId,
+        address,
+        decimals.result[0],
+        parseStringOrBytes32(symbol.result?.[0], symbolBytes32.result?.[0], 'UNKNOWN'),
+        parseStringOrBytes32(tokenName.result?.[0], tokenNameBytes32.result?.[0], 'Unknown Token')
+      )
+    }
+    return undefined
+  }, [
+    address,
+    chainId,
+    decimals.loading,
+    decimals.result,
+    symbol.loading,
+    symbol.result,
+    symbolBytes32.result,
+    token,
+    tokenName.loading,
+    tokenName.result,
+    tokenNameBytes32.result
+  ])
 }
 
 // gets token information by address (typically user input) and
-// automatically adds it for the user if the token address is valid
-export function useTokenByAddressAndAutomaticallyAdd(tokenAddress?: string): Token | undefined {
-  const fetchTokenByAddress = useFetchTokenByAddress()
+// automatically adds it for the user if it's a valid token address
+export function useTokenByAddressAndAutomaticallyAdd(tokenAddress?: string): Token | undefined | null {
   const addToken = useAddUserToken()
   const token = useToken(tokenAddress)
   const { chainId } = useActiveWeb3React()
+  const allTokens = useAllTokens()
 
   useEffect(() => {
-    if (!chainId || !isAddress(tokenAddress)) return
-    const weth = WETH[chainId as ChainId]
-    if (weth && weth.address === isAddress(tokenAddress)) return
-
-    if (tokenAddress && !token) {
-      fetchTokenByAddress(tokenAddress).then(token => {
-        if (token !== null) {
-          addToken(token)
-        }
-      })
-    }
-  }, [tokenAddress, token, fetchTokenByAddress, addToken, chainId])
+    if (!chainId || !token) return
+    if (WETH[chainId as ChainId]?.address === token.address) return
+    if (allTokens[token.address]) return
+    addToken(token)
+  }, [token, addToken, chainId, allTokens])
 
   return token
 }

src/hooks/Trades.ts

@@ -1,47 +1,44 @@
 import { useMemo } from 'react'
-import { WETH, Token, TokenAmount, Trade, ChainId, Pair } from '@uniswap/sdk'
-import { useActiveWeb3React } from './index'
-import { usePair } from '../data/Reserves'
+import { Token, TokenAmount, Trade, ChainId, Pair } from '@uniswap/sdk'
+import flatMap from 'lodash.flatmap'
+
+import { useActiveWeb3React } from './index'
+import { usePairs } from '../data/Reserves'
+
+import { BASES_TO_CHECK_TRADES_AGAINST } from '../constants'
 
-const DAI = new Token(ChainId.MAINNET, '0x6B175474E89094C44Da98b954EedeAC495271d0F', 18, 'DAI', 'Dai Stablecoin')
-const USDC = new Token(ChainId.MAINNET, '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', 6, 'USDC', 'USD//C')
 function useAllCommonPairs(tokenA?: Token, tokenB?: Token): Pair[] {
   const { chainId } = useActiveWeb3React()
 
-  // check for direct pair between tokens
-  const pairBetween = usePair(tokenA, tokenB)
+  const bases = useMemo(() => BASES_TO_CHECK_TRADES_AGAINST[chainId as ChainId] ?? [], [chainId])
 
-  // get token<->WETH pairs
-  const aToETH = usePair(tokenA, WETH[chainId as ChainId])
-  const bToETH = usePair(tokenB, WETH[chainId as ChainId])
-
-  // get token<->DAI pairs
-  const aToDAI = usePair(tokenA, chainId === ChainId.MAINNET ? DAI : undefined)
-  const bToDAI = usePair(tokenB, chainId === ChainId.MAINNET ? DAI : undefined)
-
-  // get token<->USDC pairs
-  const aToUSDC = usePair(tokenA, chainId === ChainId.MAINNET ? USDC : undefined)
-  const bToUSDC = usePair(tokenB, chainId === ChainId.MAINNET ? USDC : undefined)
-
-  // get connecting pairs
-  const DAIToETH = usePair(chainId === ChainId.MAINNET ? DAI : undefined, WETH[chainId as ChainId])
-  const USDCToETH = usePair(chainId === ChainId.MAINNET ? USDC : undefined, WETH[chainId as ChainId])
-  const DAIToUSDC = usePair(
-    chainId === ChainId.MAINNET ? DAI : undefined,
-    chainId === ChainId.MAINNET ? USDC : undefined
+  const allPairCombinations: [Token | undefined, Token | undefined][] = useMemo(
+    () => [
+      // the direct pair
+      [tokenA, tokenB],
+      // token A against all bases
+      ...bases.map((base): [Token | undefined, Token | undefined] => [tokenA, base]),
+      // token B against all bases
+      ...bases.map((base): [Token | undefined, Token | undefined] => [tokenB, base]),
+      // each base against all bases
+      ...flatMap(bases, (base): [Token, Token][] => bases.map(otherBase => [base, otherBase]))
+    ],
+    [tokenA, tokenB, bases]
   )
 
+  const allPairs = usePairs(allPairCombinations)
+
   // only pass along valid pairs, non-duplicated pairs
   return useMemo(
     () =>
-      [pairBetween, aToETH, bToETH, aToDAI, bToDAI, aToUSDC, bToUSDC, DAIToETH, USDCToETH, DAIToUSDC]
+      allPairs
         // filter out invalid pairs
         .filter((p): p is Pair => !!p)
         // filter out duplicated pairs
         .filter(
           (p, i, pairs) => i === pairs.findIndex(pair => pair?.liquidityToken.address === p.liquidityToken.address)
         ),
-    [pairBetween, aToETH, bToETH, aToDAI, bToDAI, aToUSDC, bToUSDC, DAIToETH, USDCToETH, DAIToUSDC]
+    [allPairs]
   )
 }
 

src/hooks/index.ts

@@ -1,18 +1,13 @@
-import { Contract } from '@ethersproject/contracts'
 import { Web3Provider } from '@ethersproject/providers'
-import { useState, useMemo, useCallback, useEffect, useRef } from 'react'
+import { ChainId } from '@uniswap/sdk'
 import { useWeb3React as useWeb3ReactCore } from '@web3-react/core'
+import { Web3ReactContextInterface } from '@web3-react/core/dist/types'
+import { useEffect, useState } from 'react'
 import { isMobile } from 'react-device-detect'
-import copy from 'copy-to-clipboard'
-
-import IUniswapV1Factory from '../constants/abis/v1_factory.json'
-import ERC20_ABI from '../constants/abis/erc20.json'
-import { abi as IUniswapV2PairABI } from '@uniswap/v2-core/build/IUniswapV2Pair.json'
 import { injected } from '../connectors'
-import { NetworkContextName, V1_FACTORY_ADDRESS } from '../constants'
-import { getContract, isAddress } from '../utils'
+import { NetworkContextName } from '../constants'
 
-export function useActiveWeb3React() {
+export function useActiveWeb3React(): Web3ReactContextInterface<Web3Provider> & { chainId?: ChainId } {
   const context = useWeb3ReactCore<Web3Provider>()
   const contextNetwork = useWeb3ReactCore<Web3Provider>(NetworkContextName)
   return context.active ? context : contextNetwork
@@ -64,7 +59,7 @@ export function useInactiveListener(suppress = false) {
       const handleChainChanged = () => {
         // eat errors
         activate(injected, undefined, true).catch(error => {
-          console.log(error)
+          console.error('Failed to activate after chain changed', error)
         })
       }
 
@@ -72,7 +67,7 @@ export function useInactiveListener(suppress = false) {
         if (accounts.length > 0) {
           // eat errors
           activate(injected, undefined, true).catch(error => {
-            console.log(error)
+            console.error('Failed to activate after accounts changed', error)
           })
         }
       }
@@ -80,7 +75,7 @@ export function useInactiveListener(suppress = false) {
       const handleNetworkChanged = () => {
         // eat errors
         activate(injected, undefined, true).catch(error => {
-          console.log(error)
+          console.error('Failed to activate after networks changed', error)
         })
       }
 
@@ -99,157 +94,3 @@ export function useInactiveListener(suppress = false) {
     return
   }, [active, error, suppress, activate])
 }
-
-// modified from https://usehooks.com/useDebounce/
-export function useDebounce<T>(value: T, delay: number): T {
-  const [debouncedValue, setDebouncedValue] = useState<T>(value)
-
-  useEffect(() => {
-    // Update debounced value after delay
-    const handler = setTimeout(() => {
-      setDebouncedValue(value)
-    }, delay)
-
-    // Cancel the timeout if value changes (also on delay change or unmount)
-    // This is how we prevent debounced value from updating if value is changed ...
-    // .. within the delay period. Timeout gets cleared and restarted.
-    return () => {
-      clearTimeout(handler)
-    }
-  }, [value, delay])
-
-  return debouncedValue
-}
-
-// modified from https://usehooks.com/useKeyPress/
-export function useBodyKeyDown(targetKey: string, onKeyDown: () => void, suppressOnKeyDown = false) {
-  const downHandler = useCallback(
-    event => {
-      const {
-        target: { tagName },
-        key
-      } = event
-      if (key === targetKey && tagName === 'BODY' && !suppressOnKeyDown) {
-        event.preventDefault()
-        onKeyDown()
-      }
-    },
-    [targetKey, onKeyDown, suppressOnKeyDown]
-  )
-
-  useEffect(() => {
-    window.addEventListener('keydown', downHandler)
-    return () => {
-      window.removeEventListener('keydown', downHandler)
-    }
-  }, [downHandler])
-}
-
-export function useENSName(address?: string): string | null {
-  const { library } = useActiveWeb3React()
-
-  const [ENSName, setENSName] = useState<string | null>(null)
-
-  useEffect(() => {
-    if (!library || !address) return
-    if (isAddress(address)) {
-      let stale = false
-      library
-        .lookupAddress(address)
-        .then(name => {
-          if (!stale) {
-            if (name) {
-              setENSName(name)
-            } else {
-              setENSName(null)
-            }
-          }
-        })
-        .catch(() => {
-          if (!stale) {
-            setENSName(null)
-          }
-        })
-
-      return () => {
-        stale = true
-        setENSName(null)
-      }
-    }
-    return
-  }, [library, address])
-
-  return ENSName
-}
-
-// returns null on errors
-function useContract(address?: string, ABI?: any, withSignerIfPossible = true): Contract | null {
-  const { library, account } = useActiveWeb3React()
-
-  return useMemo(() => {
-    if (!address || !ABI || !library) return null
-    try {
-      return getContract(address, ABI, library, withSignerIfPossible && account ? account : undefined)
-    } catch {
-      return null
-    }
-  }, [address, ABI, library, withSignerIfPossible, account])
-}
-
-export function useV1FactoryContract(): Contract | null {
-  return useContract(V1_FACTORY_ADDRESS, IUniswapV1Factory, false)
-}
-
-// returns null on errors
-export function useTokenContract(tokenAddress?: string, withSignerIfPossible = true): Contract | null {
-  return useContract(tokenAddress, ERC20_ABI, withSignerIfPossible)
-}
-
-export function usePairContract(pairAddress?: string, withSignerIfPossible = true): Contract | null {
-  return useContract(pairAddress, IUniswapV2PairABI, withSignerIfPossible)
-}
-
-export function useCopyClipboard(timeout = 500): [boolean, (toCopy: string) => void] {
-  const [isCopied, setIsCopied] = useState(false)
-
-  const staticCopy = useCallback(text => {
-    const didCopy = copy(text)
-    setIsCopied(didCopy)
-  }, [])
-
-  useEffect(() => {
-    if (isCopied) {
-      const hide = setTimeout(() => {
-        setIsCopied(false)
-      }, timeout)
-
-      return () => {
-        clearTimeout(hide)
-      }
-    }
-    return
-  }, [isCopied, setIsCopied, timeout])
-
-  return [isCopied, staticCopy]
-}
-
-// modified from https://usehooks.com/usePrevious/
-export function usePrevious<T>(value: T) {
-  // The ref object is a generic container whose current property is mutable ...
-  // ... and can hold any value, similar to an instance property on a class
-  const ref = useRef<T>()
-
-  // Store current value in ref
-  useEffect(() => {
-    ref.current = value
-  }, [value]) // Only re-run if value changes
-
-  // Return previous value (happens before update in useEffect above)
-  return ref.current
-}
-
-export function useToggle(initialState = false): [boolean, () => void] {
-  const [state, setState] = useState(initialState)
-  const toggle = useCallback(() => setState(state => !state), [])
-  return [state, toggle]
-}

src/hooks/useApproveCallback.ts

@@ -8,7 +8,8 @@ import { Field } from '../state/swap/actions'
 import { useTransactionAdder, useHasPendingApproval } from '../state/transactions/hooks'
 import { computeSlippageAdjustedAmounts } from '../utils/prices'
 import { calculateGasMargin } from '../utils'
-import { useTokenContract, useActiveWeb3React } from './index'
+import { useTokenContract } from './useContract'
+import { useActiveWeb3React } from './index'
 
 export enum ApprovalState {
   UNKNOWN,

src/hooks/useBodyKeyDown.ts

@@ -0,0 +1,25 @@
+import { useCallback, useEffect } from 'react'
+
+// modified from https://usehooks.com/useKeyPress/
+export default function useBodyKeyDown(targetKey: string, onKeyDown: () => void, suppressOnKeyDown = false) {
+  const downHandler = useCallback(
+    event => {
+      const {
+        target: { tagName },
+        key
+      } = event
+      if (key === targetKey && tagName === 'BODY' && !suppressOnKeyDown) {
+        event.preventDefault()
+        onKeyDown()
+      }
+    },
+    [targetKey, onKeyDown, suppressOnKeyDown]
+  )
+
+  useEffect(() => {
+    window.addEventListener('keydown', downHandler)
+    return () => {
+      window.removeEventListener('keydown', downHandler)
+    }
+  }, [downHandler])
+}

src/hooks/useContract.ts

@@ -0,0 +1,56 @@
+import { Contract } from '@ethersproject/contracts'
+import { ChainId } from '@uniswap/sdk'
+import { abi as IUniswapV2PairABI } from '@uniswap/v2-core/build/IUniswapV2Pair.json'
+import { useMemo } from 'react'
+import { ERC20_BYTES32_ABI } from '../constants/abis/erc20'
+import ERC20_ABI from '../constants/abis/erc20.json'
+import { MIGRATOR_ABI, MIGRATOR_ADDRESS } from '../constants/abis/migrator'
+import { V1_EXCHANGE_ABI, V1_FACTORY_ABI, V1_FACTORY_ADDRESSES } from '../constants/v1'
+import { MULTICALL_ABI, MULTICALL_NETWORKS } from '../constants/multicall'
+import { getContract } from '../utils'
+import { useActiveWeb3React } from './index'
+
+// returns null on errors
+function useContract(address?: string, ABI?: any, withSignerIfPossible = true): Contract | null {
+  const { library, account } = useActiveWeb3React()
+
+  return useMemo(() => {
+    if (!address || !ABI || !library) return null
+    try {
+      return getContract(address, ABI, library, withSignerIfPossible && account ? account : undefined)
+    } catch (error) {
+      console.error('Failed to get contract', error)
+      return null
+    }
+  }, [address, ABI, library, withSignerIfPossible, account])
+}
+
+export function useV1FactoryContract(): Contract | null {
+  const { chainId } = useActiveWeb3React()
+  return useContract(V1_FACTORY_ADDRESSES[chainId as ChainId], V1_FACTORY_ABI, false)
+}
+
+export function useV1ExchangeContract(address: string): Contract | null {
+  return useContract(address, V1_EXCHANGE_ABI, false)
+}
+
+export function useV2MigratorContract(): Contract | null {
+  return useContract(MIGRATOR_ADDRESS, MIGRATOR_ABI, true)
+}
+
+export function useTokenContract(tokenAddress?: string, withSignerIfPossible = true): Contract | null {
+  return useContract(tokenAddress, ERC20_ABI, withSignerIfPossible)
+}
+
+export function useBytes32TokenContract(tokenAddress?: string, withSignerIfPossible = true): Contract | null {
+  return useContract(tokenAddress, ERC20_BYTES32_ABI, withSignerIfPossible)
+}
+
+export function usePairContract(pairAddress?: string, withSignerIfPossible = true): Contract | null {
+  return useContract(pairAddress, IUniswapV2PairABI, withSignerIfPossible)
+}
+
+export function useMulticallContract(): Contract | null {
+  const { chainId } = useActiveWeb3React()
+  return useContract(MULTICALL_NETWORKS[chainId as ChainId], MULTICALL_ABI, false)
+}

src/hooks/useCopyClipboard.ts

@@ -0,0 +1,26 @@
+import copy from 'copy-to-clipboard'
+import { useCallback, useEffect, useState } from 'react'
+
+export default function useCopyClipboard(timeout = 500): [boolean, (toCopy: string) => void] {
+  const [isCopied, setIsCopied] = useState(false)
+
+  const staticCopy = useCallback(text => {
+    const didCopy = copy(text)
+    setIsCopied(didCopy)
+  }, [])
+
+  useEffect(() => {
+    if (isCopied) {
+      const hide = setTimeout(() => {
+        setIsCopied(false)
+      }, timeout)
+
+      return () => {
+        clearTimeout(hide)
+      }
+    }
+    return
+  }, [isCopied, setIsCopied, timeout])
+
+  return [isCopied, staticCopy]
+}

src/hooks/useDebounce.ts

@@ -0,0 +1,22 @@
+import { useEffect, useState } from 'react'
+
+// modified from https://usehooks.com/useDebounce/
+export default function useDebounce<T>(value: T, delay: number): T {
+  const [debouncedValue, setDebouncedValue] = useState<T>(value)
+
+  useEffect(() => {
+    // Update debounced value after delay
+    const handler = setTimeout(() => {
+      setDebouncedValue(value)
+    }, delay)
+
+    // Cancel the timeout if value changes (also on delay change or unmount)
+    // This is how we prevent debounced value from updating if value is changed ...
+    // .. within the delay period. Timeout gets cleared and restarted.
+    return () => {
+      clearTimeout(handler)
+    }
+  }, [value, delay])
+
+  return debouncedValue
+}

src/hooks/useENSName.ts

@@ -0,0 +1,45 @@
+import { useEffect, useState } from 'react'
+import { isAddress } from '../utils'
+import { useActiveWeb3React } from './index'
+
+/**
+ * Does a reverse lookup for an address to find its ENS name.
+ * Note this is not the same as looking up an ENS name to find an address.
+ */
+export default function useENSName(address?: string): string | null {
+  const { library } = useActiveWeb3React()
+
+  const [ENSName, setENSName] = useState<string | null>(null)
+
+  useEffect(() => {
+    if (!library || !address) return
+    const validated = isAddress(address)
+    if (validated) {
+      let stale = false
+      library
+        .lookupAddress(validated)
+        .then(name => {
+          if (!stale) {
+            if (name) {
+              setENSName(name)
+            } else {
+              setENSName(null)
+            }
+          }
+        })
+        .catch(() => {
+          if (!stale) {
+            setENSName(null)
+          }
+        })
+
+      return () => {
+        stale = true
+        setENSName(null)
+      }
+    }
+    return
+  }, [library, address])
+
+  return ENSName
+}

src/hooks/useIsWindowVisible.ts

@@ -0,0 +1,20 @@
+import { useCallback, useEffect, useState } from 'react'
+
+/**
+ * Returns whether the window is currently visible to the user.
+ */
+export default function useIsWindowVisible(): boolean {
+  const [focused, setFocused] = useState<boolean>(true)
+  const listener = useCallback(() => {
+    setFocused(document.visibilityState !== 'hidden')
+  }, [setFocused])
+
+  useEffect(() => {
+    document.addEventListener('visibilitychange', listener)
+    return () => {
+      document.removeEventListener('visibilitychange', listener)
+    }
+  }, [listener])
+
+  return focused
+}

src/hooks/usePrevious.ts

@@ -0,0 +1,16 @@
+import { useEffect, useRef } from 'react'
+
+// modified from https://usehooks.com/usePrevious/
+export default function usePrevious<T>(value: T) {
+  // The ref object is a generic container whose current property is mutable ...
+  // ... and can hold any value, similar to an instance property on a class
+  const ref = useRef<T>()
+
+  // Store current value in ref
+  useEffect(() => {
+    ref.current = value
+  }, [value]) // Only re-run if value changes
+
+  // Return previous value (happens before update in useEffect above)
+  return ref.current
+}

src/hooks/useSendCallback.ts

@@ -6,7 +6,9 @@ import { useTransactionAdder } from '../state/transactions/hooks'
 import { useTokenBalanceTreatingWETHasETH } from '../state/wallet/hooks'
 
 import { calculateGasMargin, getSigner, isAddress } from '../utils'
-import { useENSName, useTokenContract, useActiveWeb3React } from './index'
+import { useTokenContract } from './useContract'
+import { useActiveWeb3React } from './index'
+import useENSName from './useENSName'
 
 // returns a callback for sending a token amount, treating WETH as ETH
 // returns null with invalid arguments

src/hooks/useSwapCallback.ts

@@ -8,7 +8,8 @@ import { Field } from '../state/swap/actions'
 import { useTransactionAdder } from '../state/transactions/hooks'
 import { computeSlippageAdjustedAmounts } from '../utils/prices'
 import { calculateGasMargin, getRouterContract, isAddress } from '../utils'
-import { useENSName, useActiveWeb3React } from './index'
+import { useActiveWeb3React } from './index'
+import useENSName from './useENSName'
 
 enum SwapType {
   EXACT_TOKENS_FOR_TOKENS,
@@ -39,6 +40,9 @@ function getSwapType(tokens: { [field in Field]?: Token }, isExactIn: boolean, c
   }
 }
 
+// list of checksummed addresses that are forced to go through the FoT methods
+const FORCED_FOT_TOKENS = ['0xF0FAC7104aAC544e4a7CE1A55ADF2B5a25c65bD1']
+
 // returns a function that will execute a swap, if the parameters are all valid
 // and the user has approved the slippage adjusted input amount for the trade
 export function useSwapCallback(
@@ -80,6 +84,7 @@ export function useSwapCallback(
       const routerContract: Contract = getRouterContract(chainId, library, account)
 
       const path = trade.route.path.map(t => t.address)
+      const isForcedFOT: boolean = path.some(tokenAddress => FORCED_FOT_TOKENS.indexOf(tokenAddress) !== -1)
 
       const deadlineFromNow: number = Math.ceil(Date.now() / 1000) + deadline
 
@@ -89,11 +94,15 @@ export function useSwapCallback(
         chainId as ChainId
       )
 
-      let estimate, method: Function, args: Array<string | string[] | number>, value: BigNumber | null
+      // let estimate: Function, method: Function,
+      let methodNames: string[],
+        args: Array<string | string[] | number>,
+        value: BigNumber | null = null
       switch (swapType) {
         case SwapType.EXACT_TOKENS_FOR_TOKENS:
-          estimate = routerContract.estimateGas.swapExactTokensForTokens
-          method = routerContract.swapExactTokensForTokens
+          methodNames = isForcedFOT
+            ? ['swapExactTokensForTokensSupportingFeeOnTransferTokens']
+            : ['swapExactTokensForTokens', 'swapExactTokensForTokensSupportingFeeOnTransferTokens']
           args = [
             slippageAdjustedInput.raw.toString(),
             slippageAdjustedOutput.raw.toString(),
@@ -101,11 +110,9 @@ export function useSwapCallback(
             recipient,
             deadlineFromNow
           ]
-          value = null
           break
         case SwapType.TOKENS_FOR_EXACT_TOKENS:
-          estimate = routerContract.estimateGas.swapTokensForExactTokens
-          method = routerContract.swapTokensForExactTokens
+          methodNames = ['swapTokensForExactTokens']
           args = [
             slippageAdjustedOutput.raw.toString(),
             slippageAdjustedInput.raw.toString(),
@@ -113,17 +120,16 @@ export function useSwapCallback(
             recipient,
             deadlineFromNow
           ]
-          value = null
           break
         case SwapType.EXACT_ETH_FOR_TOKENS:
-          estimate = routerContract.estimateGas.swapExactETHForTokens
-          method = routerContract.swapExactETHForTokens
+          methodNames = isForcedFOT
+            ? ['swapExactETHForTokensSupportingFeeOnTransferTokens']
+            : ['swapExactETHForTokens', 'swapExactETHForTokensSupportingFeeOnTransferTokens']
           args = [slippageAdjustedOutput.raw.toString(), path, recipient, deadlineFromNow]
           value = BigNumber.from(slippageAdjustedInput.raw.toString())
           break
         case SwapType.TOKENS_FOR_EXACT_ETH:
-          estimate = routerContract.estimateGas.swapTokensForExactETH
-          method = routerContract.swapTokensForExactETH
+          methodNames = ['swapTokensForExactETH']
           args = [
             slippageAdjustedOutput.raw.toString(),
             slippageAdjustedInput.raw.toString(),
@@ -131,11 +137,11 @@ export function useSwapCallback(
             recipient,
             deadlineFromNow
           ]
-          value = null
           break
         case SwapType.EXACT_TOKENS_FOR_ETH:
-          estimate = routerContract.estimateGas.swapExactTokensForETH
-          method = routerContract.swapExactTokensForETH
+          methodNames = isForcedFOT
+            ? ['swapExactTokensForETHSupportingFeeOnTransferTokens']
+            : ['swapExactTokensForETH', 'swapExactTokensForETHSupportingFeeOnTransferTokens']
           args = [
             slippageAdjustedInput.raw.toString(),
             slippageAdjustedOutput.raw.toString(),
@@ -143,58 +149,99 @@ export function useSwapCallback(
             recipient,
             deadlineFromNow
           ]
-          value = null
           break
         case SwapType.ETH_FOR_EXACT_TOKENS:
-          estimate = routerContract.estimateGas.swapETHForExactTokens
-          method = routerContract.swapETHForExactTokens
+          methodNames = ['swapETHForExactTokens']
           args = [slippageAdjustedOutput.raw.toString(), path, recipient, deadlineFromNow]
           value = BigNumber.from(slippageAdjustedInput.raw.toString())
           break
       }
 
-      return estimate(...args, value ? { value } : {})
-        .then(estimatedGasLimit =>
-          method(...args, {
-            ...(value ? { value } : {}),
-            gasLimit: calculateGasMargin(estimatedGasLimit)
-          })
+      const safeGasEstimates = await Promise.all(
+        methodNames.map(methodName =>
+          routerContract.estimateGas[methodName](...args, value ? { value } : {})
+            .then(calculateGasMargin)
+            .catch(error => {
+              console.error(`estimateGas failed for ${methodName}`, error)
+            })
         )
-        .then(response => {
-          if (recipient === account) {
-            addTransaction(response, {
-              summary:
-                'Swap ' +
-                slippageAdjustedInput.toSignificant(3) +
-                ' ' +
-                trade.inputAmount.token.symbol +
-                ' for ' +
-                slippageAdjustedOutput.toSignificant(3) +
-                ' ' +
-                trade.outputAmount.token.symbol
-            })
-          } else {
-            addTransaction(response, {
-              summary:
-                'Swap ' +
-                slippageAdjustedInput.toSignificant(3) +
-                ' ' +
-                trade.inputAmount.token.symbol +
-                ' for ' +
-                slippageAdjustedOutput.toSignificant(3) +
-                ' ' +
-                trade.outputAmount.token.symbol +
-                ' to ' +
-                (ensName ?? recipient)
-            })
-          }
+      )
 
-          return response.hash
-        })
-        .catch(error => {
-          console.error(`Swap or gas estimate failed`, error)
-          throw error
+      const indexOfSuccessfulEstimation = safeGasEstimates.findIndex(safeGasEstimate =>
+        BigNumber.isBigNumber(safeGasEstimate)
+      )
+
+      // all estimations failed...
+      if (indexOfSuccessfulEstimation === -1) {
+        // if only 1 method exists, either:
+        // a) the token is doing something weird not related to FoT (e.g. enforcing a whitelist)
+        // b) the token is FoT and the user specified an exact output, which is not allowed
+        if (methodNames.length === 1) {
+          throw Error(
+            `An error occurred. If either of the tokens you're swapping take a fee on transfer, you must specify an exact input amount.`
+          )
+        }
+        // if 2 methods exists, either:
+        // a) the token is doing something weird not related to FoT (e.g. enforcing a whitelist)
+        // b) the token is FoT and is taking more than the specified slippage
+        else if (methodNames.length === 2) {
+          throw Error(
+            `An error occurred. If either of the tokens you're swapping take a fee on transfer, you must specify a slippage tolerance higher than the fee.`
+          )
+        } else {
+          throw Error('This transaction would fail. Please contact support.')
+        }
+      } else {
+        const methodName = methodNames[indexOfSuccessfulEstimation]
+        const safeGasEstimate = safeGasEstimates[indexOfSuccessfulEstimation]
+
+        return routerContract[methodName](...args, {
+          gasLimit: safeGasEstimate,
+          ...(value ? { value } : {})
         })
+          .then((response: any) => {
+            if (recipient === account) {
+              addTransaction(response, {
+                summary:
+                  'Swap ' +
+                  slippageAdjustedInput.toSignificant(3) +
+                  ' ' +
+                  trade.inputAmount.token.symbol +
+                  ' for ' +
+                  slippageAdjustedOutput.toSignificant(3) +
+                  ' ' +
+                  trade.outputAmount.token.symbol
+              })
+            } else {
+              addTransaction(response, {
+                summary:
+                  'Swap ' +
+                  slippageAdjustedInput.toSignificant(3) +
+                  ' ' +
+                  trade.inputAmount.token.symbol +
+                  ' for ' +
+                  slippageAdjustedOutput.toSignificant(3) +
+                  ' ' +
+                  trade.outputAmount.token.symbol +
+                  ' to ' +
+                  (ensName ?? recipient)
+              })
+            }
+
+            return response.hash
+          })
+          .catch((error: any) => {
+            // if the user rejected the tx, pass this along
+            if (error?.code === 4001) {
+              throw error
+            }
+            // otherwise, the error was unexpected and we need to convey that
+            else {
+              console.error(`swap failed for ${methodName}`, error)
+              throw Error('An error occurred while swapping. Please contact support.')
+            }
+          })
+      }
     }
   }, [account, allowedSlippage, addTransaction, chainId, deadline, inputAllowance, library, trade, ensName, recipient])
 }

src/hooks/useToggle.ts

@@ -0,0 +1,7 @@
+import { useCallback, useState } from 'react'
+
+export default function useToggle(initialState = false): [boolean, () => void] {
+  const [state, setState] = useState(initialState)
+  const toggle = useCallback(() => setState(state => !state), [])
+  return [state, toggle]
+}

src/index.tsx

@@ -12,7 +12,7 @@ import store from './state'
 import ApplicationUpdater from './state/application/updater'
 import TransactionUpdater from './state/transactions/updater'
 import UserUpdater from './state/user/updater'
-import WalletUpdater from './state/wallet/updater'
+import MulticallUpdater from './state/multicall/updater'
 import ThemeProvider, { FixedGlobalStyle, ThemedGlobalStyle } from './theme'
 
 const Web3ProviderNetwork = createWeb3ReactRoot(NetworkContextName)
@@ -37,7 +37,7 @@ function Updaters() {
       <UserUpdater />
       <ApplicationUpdater />
       <TransactionUpdater />
-      <WalletUpdater />
+      <MulticallUpdater />
     </>
   )
 }

src/pages/App.tsx

@@ -9,6 +9,8 @@ import Web3ReactManager from '../components/Web3ReactManager'
 import DarkModeQueryParamReader from '../theme/DarkModeQueryParamReader'
 import AddLiquidity from './AddLiquidity'
 import CreatePool from './CreatePool'
+import MigrateV1 from './MigrateV1'
+import MigrateV1Exchange from './MigrateV1/MigrateV1Exchange'
 import Pool from './Pool'
 import PoolFinder from './PoolFinder'
 import RemoveLiquidity from './RemoveLiquidity'
@@ -21,7 +23,6 @@ const AppWrapper = styled.div`
   flex-flow: column;
   align-items: flex-start;
   overflow-x: hidden;
-  height: 100vh;
 `
 
 const HeaderWrapper = styled.div`
@@ -50,7 +51,7 @@ const BodyWrapper = styled.div`
 
 const BackgroundGradient = styled.div`
   width: 100%;
-  height: 200vh;
+  height: 170vh;
   background: ${({ theme }) => `radial-gradient(50% 50% at 50% 50%, ${theme.primary1} 0%, ${theme.bg1} 100%)`};
   position: absolute;
   top: 0px;
@@ -67,6 +68,10 @@ const BackgroundGradient = styled.div`
   }
 `
 
+const Marginer = styled.div`
+  margin-top: 5rem;
+`
+
 let Router: React.ComponentType
 if (process.env.PUBLIC_URL === '.') {
   Router = HashRouter
@@ -96,15 +101,17 @@ export default function App() {
                 <Route exact strict path="/create" component={CreatePool} />
                 <Route exact strict path="/add/:tokens" component={AddLiquidity} />
                 <Route exact strict path="/remove/:tokens" component={RemoveLiquidity} />
+                <Route exact strict path="/migrate/v1" component={MigrateV1} />
+                <Route exact strict path="/migrate/v1/:address" component={MigrateV1Exchange} />
                 <Route component={RedirectPathToSwapOnly} />
               </Switch>
             </Web3ReactManager>
+            <Marginer />
             <Footer />
           </BodyWrapper>
           <BackgroundGradient />
         </AppWrapper>
       </Router>
-      <div id="popover-container" />
     </Suspense>
   )
 }

src/pages/AppBody.tsx

@@ -2,17 +2,15 @@ import React from 'react'
 import styled from 'styled-components'
 import NavigationTabs from '../components/NavigationTabs'
 
-export const Body = styled.div`
+export const BodyWrapper = styled.div`
+  position: relative;
   max-width: 420px;
   width: 100%;
-  /* min-height: 340px; */
   background: ${({ theme }) => theme.bg1};
   box-shadow: 0px 0px 1px rgba(0, 0, 0, 0.01), 0px 4px 8px rgba(0, 0, 0, 0.04), 0px 16px 24px rgba(0, 0, 0, 0.04),
     0px 24px 32px rgba(0, 0, 0, 0.01);
   border-radius: 30px;
   padding: 1rem;
-  position: relative;
-  margin-bottom: 10rem;
 `
 
 /**
@@ -20,9 +18,9 @@ export const Body = styled.div`
  */
 export default function AppBody({ children }: { children: React.ReactNode }) {
   return (
-    <Body>
+    <BodyWrapper>
       <NavigationTabs />
       <>{children}</>
-    </Body>
+    </BodyWrapper>
   )
 }

src/pages/CreatePool/index.tsx

@@ -8,7 +8,7 @@ import TokenLogo from '../../components/TokenLogo'
 import SearchModal from '../../components/SearchModal'
 import { Text } from 'rebass'
 import { Plus } from 'react-feather'
-import { TYPE, Link } from '../../theme'
+import { TYPE, StyledInternalLink } from '../../theme'
 import { AutoColumn, ColumnCenter } from '../../components/Column'
 import { ButtonPrimary, ButtonDropwdown, ButtonDropwdownLight } from '../../components/Button'
 
@@ -27,7 +27,7 @@ enum STEP {
   SHOW_CREATE_PAGE = 'SHOW_CREATE_PAGE' // show create page
 }
 
-export default function CreatePool({ history, location }: RouteComponentProps) {
+export default function CreatePool({ location }: RouteComponentProps) {
   const { chainId } = useActiveWeb3React()
   const [showSearch, setShowSearch] = useState<boolean>(false)
   const [activeField, setActiveField] = useState<number>(Fields.TOKEN0)
@@ -116,8 +116,8 @@ export default function CreatePool({ history, location }: RouteComponentProps) {
           {pair ? ( // pair already exists - prompt to add liquidity to existing pool
             <AutoRow padding="10px" justify="center">
               <TYPE.body textAlign="center">
-                Pool already exists!
-                <Link onClick={() => history.push('/add/' + token0Address + '-' + token1Address)}> Join the pool.</Link>
+                Pool already exists!{' '}
+                <StyledInternalLink to={`/add/${token0Address}-${token1Address}`}>Join the pool.</StyledInternalLink>
               </TYPE.body>
             </AutoRow>
           ) : (

src/pages/MigrateV1/EmptyState.tsx

@@ -0,0 +1,11 @@
+import React from 'react'
+import { AutoColumn } from '../../components/Column'
+import { TYPE } from '../../theme'
+
+export function EmptyState({ message }: { message: string }) {
+  return (
+    <AutoColumn style={{ minHeight: 200, justifyContent: 'center', alignItems: 'center' }}>
+      <TYPE.body>{message}</TYPE.body>
+    </AutoColumn>
+  )
+}

src/pages/MigrateV1/MigrateV1Exchange.tsx

@@ -0,0 +1,289 @@
+import { TransactionResponse } from '@ethersproject/abstract-provider'
+import { ChainId, Fraction, JSBI, Percent, Token, TokenAmount, WETH } from '@uniswap/sdk'
+import React, { useCallback, useMemo, useState } from 'react'
+import { ArrowLeft } from 'react-feather'
+import ReactGA from 'react-ga'
+import { Redirect, RouteComponentProps } from 'react-router'
+import { ButtonConfirmed } from '../../components/Button'
+import { PinkCard, YellowCard, LightCard } from '../../components/Card'
+import { AutoColumn } from '../../components/Column'
+import QuestionHelper from '../../components/QuestionHelper'
+import { AutoRow, RowBetween } from '../../components/Row'
+import { DEFAULT_DEADLINE_FROM_NOW, INITIAL_ALLOWED_SLIPPAGE } from '../../constants'
+import { MIGRATOR_ADDRESS } from '../../constants/abis/migrator'
+import { usePair } from '../../data/Reserves'
+import { useTotalSupply } from '../../data/TotalSupply'
+import { useActiveWeb3React } from '../../hooks'
+import { useTokenByAddressAndAutomaticallyAdd } from '../../hooks/Tokens'
+import { ApprovalState, useApproveCallback } from '../../hooks/useApproveCallback'
+import { useV1ExchangeContract, useV2MigratorContract } from '../../hooks/useContract'
+import { NEVER_RELOAD, useSingleCallResult } from '../../state/multicall/hooks'
+import { useIsTransactionPending, useTransactionAdder } from '../../state/transactions/hooks'
+import { useETHBalances, useTokenBalance } from '../../state/wallet/hooks'
+import { TYPE } from '../../theme'
+import { isAddress } from '../../utils'
+import { BodyWrapper } from '../AppBody'
+import { EmptyState } from './EmptyState'
+import TokenLogo from '../../components/TokenLogo'
+import { FormattedPoolTokenAmount } from './index'
+
+const WEI_DENOM = JSBI.exponentiate(JSBI.BigInt(10), JSBI.BigInt(18))
+const ZERO = JSBI.BigInt(0)
+const ONE = JSBI.BigInt(1)
+const ZERO_FRACTION = new Fraction(ZERO, ONE)
+const ALLOWED_OUTPUT_MIN_PERCENT = new Percent(JSBI.BigInt(10000 - INITIAL_ALLOWED_SLIPPAGE), JSBI.BigInt(10000))
+
+function V1PairMigration({ liquidityTokenAmount, token }: { liquidityTokenAmount: TokenAmount; token: Token }) {
+  const { account, chainId } = useActiveWeb3React()
+  const totalSupply = useTotalSupply(liquidityTokenAmount.token)
+  const exchangeETHBalance = useETHBalances([liquidityTokenAmount.token.address])?.[liquidityTokenAmount.token.address]
+  const exchangeTokenBalance = useTokenBalance(liquidityTokenAmount.token.address, token)
+
+  const v2Pair = usePair(WETH[chainId as ChainId], token)
+  const isFirstLiquidityProvider: boolean = v2Pair === null
+
+  const v2SpotPrice = v2Pair?.reserveOf(token)?.divide(v2Pair?.reserveOf(WETH[chainId as ChainId]))
+
+  const [confirmingMigration, setConfirmingMigration] = useState<boolean>(false)
+  const [pendingMigrationHash, setPendingMigrationHash] = useState<string | null>(null)
+
+  const shareFraction: Fraction = totalSupply ? new Percent(liquidityTokenAmount.raw, totalSupply.raw) : ZERO_FRACTION
+
+  const ethWorth: Fraction = exchangeETHBalance
+    ? new Fraction(shareFraction.multiply(exchangeETHBalance).quotient, WEI_DENOM)
+    : ZERO_FRACTION
+
+  const tokenWorth: TokenAmount = exchangeTokenBalance
+    ? new TokenAmount(token, shareFraction.multiply(exchangeTokenBalance.raw).quotient)
+    : new TokenAmount(token, ZERO)
+
+  const [approval, approve] = useApproveCallback(liquidityTokenAmount, MIGRATOR_ADDRESS)
+
+  const v1SpotPrice =
+    exchangeTokenBalance && exchangeETHBalance
+      ? exchangeTokenBalance.divide(new Fraction(exchangeETHBalance, WEI_DENOM))
+      : null
+
+  const priceDifferenceFraction: Fraction | undefined =
+    v1SpotPrice && v2SpotPrice
+      ? v1SpotPrice
+          .divide(v2SpotPrice)
+          .multiply('100')
+          .subtract('100')
+      : undefined
+
+  const priceDifferenceAbs: Fraction | undefined = priceDifferenceFraction?.lessThan(ZERO)
+    ? priceDifferenceFraction?.multiply('-1')
+    : priceDifferenceFraction
+
+  const minAmountETH: JSBI | undefined =
+    v2SpotPrice && tokenWorth
+      ? tokenWorth
+          .divide(v2SpotPrice)
+          .multiply(WEI_DENOM)
+          .multiply(ALLOWED_OUTPUT_MIN_PERCENT).quotient
+      : ethWorth?.numerator
+
+  const minAmountToken: JSBI | undefined =
+    v2SpotPrice && ethWorth
+      ? ethWorth
+          .multiply(v2SpotPrice)
+          .multiply(JSBI.exponentiate(JSBI.BigInt(10), JSBI.BigInt(token.decimals)))
+          .multiply(ALLOWED_OUTPUT_MIN_PERCENT).quotient
+      : tokenWorth?.numerator
+
+  const addTransaction = useTransactionAdder()
+  const isMigrationPending = useIsTransactionPending(pendingMigrationHash)
+
+  const migrator = useV2MigratorContract()
+  const migrate = useCallback(() => {
+    if (!minAmountToken || !minAmountETH) return
+
+    setConfirmingMigration(true)
+    migrator
+      .migrate(
+        token.address,
+        minAmountToken.toString(),
+        minAmountETH.toString(),
+        account,
+        Math.floor(new Date().getTime() / 1000) + DEFAULT_DEADLINE_FROM_NOW
+      )
+      .then((response: TransactionResponse) => {
+        ReactGA.event({
+          category: 'Migrate',
+          action: 'V1->V2',
+          label: token?.symbol
+        })
+
+        addTransaction(response, {
+          summary: `Migrate ${token.symbol} liquidity to V2`
+        })
+        setPendingMigrationHash(response.hash)
+      })
+      .catch(() => {
+        setConfirmingMigration(false)
+      })
+  }, [minAmountToken, minAmountETH, migrator, token, account, addTransaction])
+
+  const noLiquidityTokens = liquidityTokenAmount && liquidityTokenAmount.equalTo(ZERO)
+
+  const largePriceDifference = Boolean(priceDifferenceAbs && !priceDifferenceAbs.lessThan(JSBI.BigInt(5)))
+
+  const isSuccessfullyMigrated = Boolean(noLiquidityTokens && pendingMigrationHash)
+
+  return (
+    <AutoColumn gap="20px">
+      {!isFirstLiquidityProvider ? (
+        largePriceDifference ? (
+          <YellowCard>
+            <TYPE.body style={{ marginBottom: 8, fontWeight: 400 }}>
+              It is best to deposit liquidity into Uniswap V2 at a price you believe is correct. If you believe the
+              price is incorrect, you can either make a swap to move the price or wait for someone else to do so.
+            </TYPE.body>
+            <AutoColumn gap="8px">
+              <RowBetween>
+                <TYPE.body>V1 Price:</TYPE.body>
+                <TYPE.black>
+                  {v1SpotPrice?.toSignificant(6)} {token.symbol}/ETH
+                </TYPE.black>
+              </RowBetween>
+              <RowBetween>
+                <TYPE.body>V2 Price:</TYPE.body>
+                <TYPE.black>
+                  {v2SpotPrice?.toSignificant(6)} {token.symbol}/ETH
+                </TYPE.black>
+              </RowBetween>
+              <RowBetween>
+                <div>Price Difference:</div>
+                <div>{priceDifferenceAbs.toSignificant(4)}%</div>
+              </RowBetween>
+            </AutoColumn>
+          </YellowCard>
+        ) : null
+      ) : (
+        <PinkCard>
+          <AutoColumn gap="10px">
+            <div>
+              You are the first liquidity provider for this pair on Uniswap V2. Your liquidity will be migrated at the
+              current V1 price. Your transaction cost also includes the gas to create the pool.
+            </div>
+            <div>V1 Price</div>
+            <AutoColumn>
+              <div>
+                {v1SpotPrice?.invert()?.toSignificant(6)} ETH/{token.symbol}
+              </div>
+              <div>
+                {v1SpotPrice?.toSignificant(6)} {token.symbol}/ETH
+              </div>
+            </AutoColumn>
+          </AutoColumn>
+        </PinkCard>
+      )}
+      <LightCard>
+        <AutoRow style={{ justifyContent: 'flex-start', width: 'fit-content' }}>
+          <TokenLogo size="24px" address={token.address} />{' '}
+          <div style={{ marginLeft: '.75rem' }}>
+            <TYPE.mediumHeader>
+              {<FormattedPoolTokenAmount tokenAmount={liquidityTokenAmount} />} {token.symbol} Pool Tokens
+            </TYPE.mediumHeader>
+          </div>
+        </AutoRow>
+        <div style={{ display: 'flex', marginTop: '1rem' }}>
+          <AutoColumn gap="12px" style={{ flex: '1', marginRight: 12 }}>
+            <ButtonConfirmed
+              confirmed={approval === ApprovalState.APPROVED}
+              disabled={approval !== ApprovalState.NOT_APPROVED}
+              onClick={approve}
+            >
+              {approval === ApprovalState.PENDING
+                ? 'Approving...'
+                : approval === ApprovalState.APPROVED
+                ? 'Approved'
+                : 'Approve'}
+            </ButtonConfirmed>
+          </AutoColumn>
+          <AutoColumn gap="12px" style={{ flex: '1' }}>
+            <ButtonConfirmed
+              confirmed={isSuccessfullyMigrated}
+              disabled={
+                isSuccessfullyMigrated ||
+                noLiquidityTokens ||
+                isMigrationPending ||
+                approval !== ApprovalState.APPROVED ||
+                confirmingMigration
+              }
+              onClick={migrate}
+            >
+              {isSuccessfullyMigrated ? 'Success' : isMigrationPending ? 'Migrating...' : 'Migrate'}
+            </ButtonConfirmed>
+          </AutoColumn>
+        </div>
+      </LightCard>
+      <TYPE.darkGray style={{ textAlign: 'center' }}>
+        {'Your ' + token.symbol + ' liquidity will become Uniswap V2 ' + token.symbol + '/ETH liquidity.'}
+      </TYPE.darkGray>
+    </AutoColumn>
+  )
+}
+
+export default function MigrateV1Exchange({
+  history,
+  match: {
+    params: { address }
+  }
+}: RouteComponentProps<{ address: string }>) {
+  const validated = isAddress(address)
+  const { chainId, account } = useActiveWeb3React()
+
+  const exchangeContract = useV1ExchangeContract(validated ? validated : undefined)
+
+  const tokenAddress = useSingleCallResult(exchangeContract, 'tokenAddress', undefined, NEVER_RELOAD)?.result?.[0]
+
+  const token = useTokenByAddressAndAutomaticallyAdd(tokenAddress)
+
+  const liquidityToken: Token | undefined = useMemo(
+    () => (validated && token ? new Token(chainId, validated, 18, `UNI-V1-${token.symbol}`) : undefined),
+    [chainId, token, validated]
+  )
+
+  const userLiquidityBalance = useTokenBalance(account, liquidityToken)
+
+  const handleBack = useCallback(() => {
+    history.push('/migrate/v1')
+  }, [history])
+
+  if (!validated) {
+    console.error('Invalid address in path', address)
+    return <Redirect to="/migrate/v1" />
+  }
+
+  if (!account) {
+    return (
+      <BodyWrapper>
+        <TYPE.largeHeader>You must connect an account.</TYPE.largeHeader>
+      </BodyWrapper>
+    )
+  }
+
+  return (
+    <BodyWrapper style={{ padding: 24 }}>
+      <AutoColumn gap="16px">
+        <AutoRow style={{ alignItems: 'center', justifyContent: 'space-between' }} gap="8px">
+          <div style={{ cursor: 'pointer' }}>
+            <ArrowLeft onClick={handleBack} />
+          </div>
+          <TYPE.mediumHeader>Migrate {token?.symbol} Pool Tokens</TYPE.mediumHeader>
+          <div>
+            <QuestionHelper text="Migrate your liquidity tokens from Uniswap V1 to Uniswap V2." />
+          </div>
+        </AutoRow>
+
+        {userLiquidityBalance && token ? (
+          <V1PairMigration liquidityTokenAmount={userLiquidityBalance} token={token} />
+        ) : (
+          <EmptyState message="Loading..." />
+        )}
+      </AutoColumn>
+    </BodyWrapper>
+  )
+}

src/pages/MigrateV1/index.tsx

@@ -0,0 +1,144 @@
+import { Fraction, JSBI, Token, TokenAmount } from '@uniswap/sdk'
+import React, { useCallback, useContext, useMemo, useState } from 'react'
+import { ArrowLeft } from 'react-feather'
+import { RouteComponentProps } from 'react-router'
+import { ThemeContext } from 'styled-components'
+import { ButtonPrimary } from '../../components/Button'
+import { AutoColumn } from '../../components/Column'
+import { AutoRow } from '../../components/Row'
+import { SearchInput } from '../../components/SearchModal/styleds'
+import TokenLogo from '../../components/TokenLogo'
+import { useAllTokenV1Exchanges } from '../../data/V1'
+import { useActiveWeb3React } from '../../hooks'
+import { useTokenByAddressAndAutomaticallyAdd } from '../../hooks/Tokens'
+import { useWalletModalToggle } from '../../state/application/hooks'
+import { useTokenBalances } from '../../state/wallet/hooks'
+import { TYPE } from '../../theme'
+import { GreyCard } from '../../components/Card'
+import { BodyWrapper } from '../AppBody'
+import { EmptyState } from './EmptyState'
+
+const POOL_TOKEN_AMOUNT_MIN = new Fraction(JSBI.BigInt(1), JSBI.BigInt(1000000))
+
+export function FormattedPoolTokenAmount({ tokenAmount }: { tokenAmount: TokenAmount }) {
+  return (
+    <>
+      {tokenAmount.equalTo(JSBI.BigInt(0))
+        ? '0'
+        : tokenAmount.greaterThan(POOL_TOKEN_AMOUNT_MIN)
+        ? tokenAmount.toSignificant(6)
+        : `<${POOL_TOKEN_AMOUNT_MIN.toSignificant(1)}`}
+    </>
+  )
+}
+
+export default function MigrateV1({ history }: RouteComponentProps) {
+  const { account, chainId } = useActiveWeb3React()
+  const allV1Exchanges = useAllTokenV1Exchanges()
+
+  const v1LiquidityTokens: Token[] = useMemo(() => {
+    return Object.keys(allV1Exchanges).map(exchangeAddress => new Token(chainId, exchangeAddress, 18))
+  }, [chainId, allV1Exchanges])
+
+  const v1LiquidityBalances = useTokenBalances(account, v1LiquidityTokens)
+
+  const [tokenSearch, setTokenSearch] = useState<string>('')
+  const handleTokenSearchChange = useCallback(e => setTokenSearch(e.target.value), [setTokenSearch])
+
+  const searchedToken: Token | undefined = useTokenByAddressAndAutomaticallyAdd(tokenSearch)
+
+  const unmigratedLiquidityExchangeAddresses: TokenAmount[] = useMemo(
+    () =>
+      Object.keys(v1LiquidityBalances)
+        .filter(tokenAddress =>
+          v1LiquidityBalances[tokenAddress]
+            ? JSBI.greaterThan(v1LiquidityBalances[tokenAddress]?.raw, JSBI.BigInt(0))
+            : false
+        )
+        .map(tokenAddress => v1LiquidityBalances[tokenAddress])
+        .sort((a1, a2) => {
+          if (searchedToken) {
+            if (allV1Exchanges[a1.token.address].address === searchedToken.address) return -1
+            if (allV1Exchanges[a2.token.address].address === searchedToken.address) return 1
+          }
+          return a1.token.address < a2.token.address ? -1 : 1
+        }),
+    [allV1Exchanges, searchedToken, v1LiquidityBalances]
+  )
+
+  const theme = useContext(ThemeContext)
+
+  const toggleWalletModal = useWalletModalToggle()
+
+  const handleBackClick = useCallback(() => {
+    history.push('/pool')
+  }, [history])
+
+  return (
+    <BodyWrapper style={{ maxWidth: 450, padding: 24 }}>
+      <AutoColumn gap="24px">
+        <AutoRow style={{ justifyContent: 'space-between' }}>
+          <div>
+            <ArrowLeft style={{ cursor: 'pointer' }} onClick={handleBackClick} />
+          </div>
+          <TYPE.largeHeader>Migrate Liquidity</TYPE.largeHeader>
+          <div></div>
+        </AutoRow>
+        <GreyCard>
+          <TYPE.main style={{ lineHeight: '140%' }}>
+            For each pool, approve the migration helper and click migrate liquidity. Your liquidity will be withdrawn
+            from Uniswap V1 and deposited into Uniswap V2.
+          </TYPE.main>
+          <TYPE.black padding={'1rem 0 0 0'} style={{ lineHeight: '140%' }}>
+            If your liquidity does not appear below automatically, you may need to find it by pasting the token address
+            into the search box below.
+          </TYPE.black>
+        </GreyCard>
+        <AutoRow>
+          <SearchInput
+            value={tokenSearch}
+            onChange={handleTokenSearchChange}
+            placeholder="Find liquidity by pasting a token address."
+          />
+        </AutoRow>
+
+        {unmigratedLiquidityExchangeAddresses.map(poolTokenAmount => (
+          <div
+            key={poolTokenAmount.token.address}
+            style={{ borderRadius: '20px', padding: 16, backgroundColor: theme.bg2 }}
+          >
+            <AutoRow style={{ justifyContent: 'space-between' }}>
+              <AutoRow style={{ justifyContent: 'flex-start', width: 'fit-content' }}>
+                <TokenLogo size="32px" address={allV1Exchanges[poolTokenAmount.token.address].address} />{' '}
+                <div style={{ marginLeft: '.75rem' }}>
+                  <TYPE.main fontWeight={600}>
+                    <FormattedPoolTokenAmount tokenAmount={poolTokenAmount} />
+                  </TYPE.main>
+                  <TYPE.main fontWeight={500}>
+                    {allV1Exchanges[poolTokenAmount.token.address].symbol} Pool Tokens
+                  </TYPE.main>
+                </div>
+              </AutoRow>
+              <div>
+                <ButtonPrimary
+                  onClick={() => {
+                    history.push(`/migrate/v1/${poolTokenAmount.token.address}`)
+                  }}
+                  style={{ padding: '8px 12px', borderRadius: '12px' }}
+                >
+                  Migrate
+                </ButtonPrimary>
+              </div>
+            </AutoRow>
+          </div>
+        ))}
+
+        {account && unmigratedLiquidityExchangeAddresses.length === 0 ? (
+          <EmptyState message="No V1 Liquidity found." />
+        ) : null}
+
+        {!account ? <ButtonPrimary onClick={toggleWalletModal}>Connect to a wallet</ButtonPrimary> : null}
+      </AutoColumn>
+    </BodyWrapper>
+  )
+}

src/pages/Pool/index.tsx

@@ -6,8 +6,9 @@ import { RouteComponentProps } from 'react-router-dom'
 import Question from '../../components/QuestionHelper'
 import SearchModal from '../../components/SearchModal'
 import PositionCard from '../../components/PositionCard'
+import { useUserHasLiquidityInAllTokens } from '../../data/V1'
 import { useTokenBalances } from '../../state/wallet/hooks'
-import { Link, TYPE } from '../../theme'
+import { StyledInternalLink, TYPE } from '../../theme'
 import { Text } from 'rebass'
 import { LightCard } from '../../components/Card'
 import { RowBetween } from '../../components/Row'
@@ -58,6 +59,8 @@ export default function Pool({ history }: RouteComponentProps) {
       return <PositionCardWrapper key={i} dummyPair={pair} />
     })
 
+  const hasV1Liquidity = useUserHasLiquidityInAllTokens()
+
   return (
     <AppBody>
       <AutoColumn gap="lg" justify="center">
@@ -92,15 +95,18 @@ export default function Pool({ history }: RouteComponentProps) {
             )}
             {filteredExchangeList}
             <Text textAlign="center" fontSize={14} style={{ padding: '.5rem 0 .5rem 0' }}>
-              {filteredExchangeList?.length !== 0 ? `Don't see a pool you joined? ` : 'Already joined a pool? '}{' '}
-              <Link
-                id="import-pool-link"
-                onClick={() => {
-                  history.push('/find')
-                }}
-              >
-                Import it.
-              </Link>
+              {!hasV1Liquidity ? (
+                <>
+                  {filteredExchangeList?.length !== 0 ? `Don't see a pool you joined? ` : 'Already joined a pool? '}{' '}
+                  <StyledInternalLink id="import-pool-link" to="/find">
+                    Import it.
+                  </StyledInternalLink>
+                </>
+              ) : (
+                <StyledInternalLink id="migrate-v1-liquidity-link" to="/migrate/v1">
+                  Migrate your V1 liquidity.
+                </StyledInternalLink>
+              )}
             </Text>
           </AutoColumn>
           <FixedBottom>

src/pages/Pool/styleds.tsx

@@ -4,12 +4,7 @@ import styled from 'styled-components'
 export const Wrapper = styled.div`
   position: relative;
 `
-export const FixedBottom = styled.div`
-  position: absolute;
-  top: 100px;
-  width: 100%;
-  margin-bottom: 80px;
-`
+
 export const ClickableText = styled(Text)`
   :hover {
     cursor: pointer;

src/pages/PoolFinder/index.tsx

@@ -15,7 +15,7 @@ import { useActiveWeb3React } from '../../hooks'
 import { useToken } from '../../hooks/Tokens'
 import { usePairAdder } from '../../state/user/hooks'
 import { useTokenBalanceTreatingWETHasETH } from '../../state/wallet/hooks'
-import { Link } from '../../theme'
+import { StyledInternalLink } from '../../theme'
 import AppBody from '../AppBody'
 
 enum Fields {
@@ -119,13 +119,9 @@ export default function PoolFinder({ history }: RouteComponentProps) {
             <LightCard padding="45px 10px">
               <AutoColumn gap="sm" justify="center">
                 <Text textAlign="center">Pool found, you don’t have liquidity on this pair yet.</Text>
-                <Link
-                  onClick={() => {
-                    history.push('/add/' + token0Address + '-' + token1Address)
-                  }}
-                >
+                <StyledInternalLink to={`/add/${token0Address}-${token1Address}`}>
                   <Text textAlign="center">Add liquidity to this pair instead.</Text>
-                </Link>
+                </StyledInternalLink>
               </AutoColumn>
             </LightCard>
           )
@@ -133,13 +129,7 @@ export default function PoolFinder({ history }: RouteComponentProps) {
           <LightCard padding="45px">
             <AutoColumn gap="sm" justify="center">
               <Text color="">No pool found.</Text>
-              <Link
-                onClick={() => {
-                  history.push('/add/' + token0Address + '-' + token1Address)
-                }}
-              >
-                Create pool?
-              </Link>
+              <StyledInternalLink to={`/add/${token0Address}-${token1Address}`}>Create pool?</StyledInternalLink>
             </AutoColumn>
           </LightCard>
         ) : (