add polygon

README.md

@@ -24,6 +24,12 @@ Current offchain list:
 
 - https://bscgas.info/
 
+### Polygon (Matic) Network
+
+Current offchain list:
+
+- https://gasstation-mainnet.matic.network/
+
 ## Installation
 
 `npm i gas-price-oracle`

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gas-price-oracle",
-  "version": "0.3.1",
+  "version": "0.3.3",
   "description": "Gas Price Oracle library for Ethereum dApps.",
   "main": "lib/index.js",
   "homepage": "https://github.com/peppersec/gas-price-oracle",

src/config/binance.ts

@@ -3,7 +3,7 @@ import { OffChainOracle, OffChainOracles, OnChainOracles } from '../types';
 const bscgas: OffChainOracle = {
   name: 'bscgas',
   url: 'https://bscgas.info/gas',
-  instantPropertyName: 'imediate',
+  instantPropertyName: 'instant',
   fastPropertyName: 'fast',
   standardPropertyName: 'standard',
   lowPropertyName: 'slow',

src/config/index.ts

@@ -1,13 +1,16 @@
 import { NetworkConfig } from '../types';
 import mainnetOracles from './mainnet';
 import binanceOracles from './binance';
+import polygonOracles from './polygon';
 
 export enum ChainId {
   MAINNET = 1,
   BINANCE = 56,
+  POLYGON = 137,
 }
 
 export const networks: NetworkConfig = {
   [ChainId.MAINNET]: mainnetOracles,
   [ChainId.BINANCE]: binanceOracles,
+  [ChainId.POLYGON]: polygonOracles,
 };

src/config/polygon.ts

@@ -0,0 +1,23 @@
+import { OffChainOracle, OffChainOracles, OnChainOracles } from '../types';
+
+const maticGasStation: OffChainOracle = {
+  name: 'maticGasStation',
+  url: 'https://gasstation-mainnet.matic.network',
+  instantPropertyName: 'fastest',
+  fastPropertyName: 'fast',
+  standardPropertyName: 'standard',
+  lowPropertyName: 'safeLow',
+  denominator: 1,
+  additionalDataProperty: null,
+};
+
+export const offChainOracles: OffChainOracles = {
+  maticGasStation,
+};
+
+export const onChainOracles: OnChainOracles = {};
+
+export default {
+  offChainOracles,
+  onChainOracles,
+};

tests/index.test.ts

@@ -207,9 +207,6 @@ describe('fetchMedianGasPriceOffChain', function () {
 
 describe('askOracle', function () {
   it('all oracles should answer', async function () {
-    // TODO: remove after fix POA
-    delete offChainOracles['poa'];
-
     for (const o of Object.values(offChainOracles) as Array<OffChainOracle>) {
       try {
         const gas: GasPrice = await oracle.askOracle(o);