fix: test

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": "0.3.2",
+  "version": "0.3.4",
   "description": "Gas Price Oracle library for Ethereum dApps.",
   "main": "lib/index.js",
   "homepage": "https://github.com/peppersec/gas-price-oracle",

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/mainnet.ts

@@ -11,16 +11,16 @@ const ethgasstation: OffChainOracle = {
   additionalDataProperty: null,
 };
 
-const zoltu: OffChainOracle = {
-  name: 'zoltu',
-  url: 'https://gas-oracle.zoltu.io/',
-  instantPropertyName: 'percentile_99',
-  fastPropertyName: 'percentile_90',
-  standardPropertyName: 'percentile_60',
-  lowPropertyName: 'percentile_30',
-  denominator: 1,
-  additionalDataProperty: null,
-};
+// const zoltu: OffChainOracle = {
+//   name: 'zoltu',
+//   url: 'https://gas-oracle.zoltu.io/',
+//   instantPropertyName: 'percentile_99',
+//   fastPropertyName: 'percentile_90',
+//   standardPropertyName: 'percentile_60',
+//   lowPropertyName: 'percentile_30',
+//   denominator: 1,
+//   additionalDataProperty: null,
+// };
 
 const etherchain: OffChainOracle = {
   name: 'etherchain',
@@ -79,7 +79,7 @@ export const offChainOracles: OffChainOracles = {
   gasNow,
   poa,
   etherchain,
-  zoltu,
+  // zoltu,
 };
 
 export const onChainOracles: OnChainOracles = {

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,
+};

src/index.ts

@@ -34,9 +34,13 @@ export class GasPriceOracle {
       Object.assign(this.configuration, options);
     }
 
-    const { offChainOracles, onChainOracles } = networks[this.configuration.chainId];
-    this.offChainOracles = { ...offChainOracles };
-    this.onChainOracles = { ...onChainOracles };
+    const network = networks[this.configuration.chainId];
+
+    if (network) {
+      const { offChainOracles, onChainOracles } = network;
+      this.offChainOracles = { ...offChainOracles };
+      this.onChainOracles = { ...onChainOracles };
+    }
   }
 
   async askOracle(oracle: OffChainOracle): Promise<GasPrice> {