Update options to accept rpcEndpoint

Author: cbovis

src/index.js

@@ -6,7 +6,8 @@ const getTokenMetadata = async (address, options) => {
     'function symbol() view returns (string symbol)',
     'function decimals() view returns (uint8 decimals)',
   ];
-  const contract = new ethers.Contract(address, abi, options.provider);
+  const provider = new ethers.providers.JsonRpcProvider(options.rpcEndpoint);
+  const contract = new ethers.Contract(address, abi, provider);
   const handleError = () => {
     return null;
   };

src/index.test.js

@@ -1,20 +1,12 @@
-const ethers = require('ethers');
-
 const { getTokenMetadata } = require('.');
 
-let provider;
-
-beforeAll(() => {
-  provider = new ethers.providers.JsonRpcProvider(process.env.WEB3_ENDPOINT);
-});
+const options = { rpcEndpoint: process.env.WEB3_ENDPOINT };
 
 describe('getTokenMetadata', () => {
   it('should get metadata for USDC', async () => {
     const metadata = await getTokenMetadata(
       '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',
-      {
-        provider,
-      },
+      options,
     );
 
     expect(metadata).toEqual({
@@ -28,9 +20,7 @@ describe('getTokenMetadata', () => {
   it('should get metadata for MKR', async () => {
     const metadata = await getTokenMetadata(
       '0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2',
-      {
-        provider,
-      },
+      options,
     );
 
     expect(metadata).toEqual({
@@ -44,9 +34,7 @@ describe('getTokenMetadata', () => {
   it('should get metadata for IMBTC', async () => {
     const metadata = await getTokenMetadata(
       '0x3212b29e33587a00fb1c83346f5dbfa69a458923',
-      {
-        provider,
-      },
+      options,
     );
 
     expect(metadata).toEqual({
@@ -60,9 +48,7 @@ describe('getTokenMetadata', () => {
   it('should get metadata for CryptoSpells', async () => {
     const metadata = await getTokenMetadata(
       '0x67cbbb366a51fff9ad869d027e496ba49f5f6d55',
-      {
-        provider,
-      },
+      options,
     );
 
     expect(metadata).toEqual({
@@ -76,9 +62,7 @@ describe('getTokenMetadata', () => {
   it('should get metadata for Gods Unchained Cards', async () => {
     const metadata = await getTokenMetadata(
       '0x0e3a2a1f2146d86a604adc220b4967a898d7fe07',
-      {
-        provider,
-      },
+      options,
     );
 
     expect(metadata).toEqual({
@@ -92,9 +76,7 @@ describe('getTokenMetadata', () => {
   it('should get metadata for CryptoKitties', async () => {
     const metadata = await getTokenMetadata(
       '0x06012c8cf97bead5deae237070f9587f8e7a266d',
-      {
-        provider,
-      },
+      options,
     );
 
     expect(metadata).toEqual({