resolve issue #21

.env.example

@@ -2,4 +2,8 @@
 OWNER=''
 # address for fetching txn hash + contract creation block number
 CONTRACT_ADDRESS=''
-ETHERSCAN_API_KEY='';
+ETHERSCAN_API_KEY=''
+API_URL=''
+ALCHEMY_KEY=''
+BUNDLR_FUNDING_CHAIN=''
+SEPOLIA_ALCHEMY_KEY=''

bundlr/bundlrInit.ts

@@ -1,11 +1,12 @@
 import Bundlr from '@bundlr-network/client';
+import env from '../services/env';
 
 // initialize bundlr
 export const bundlr = new Bundlr(
   'http://devnet.bundlr.network',
   'ethereum',
   process.env.PRIVATE_KEY,
   {
-    providerUrl: `https://eth-sepolia.g.alchemy.com/v2/${process.env.SEPOLIA_RPC_URL}`,
+    providerUrl: `${env.BUNDLR_FUNDING_CHAIN}/v2/${env.SEPOLIA_ALCHEMY_KEY}`,
   }
 );

fetch/utils/getLastBlockNum.ts

@@ -6,7 +6,7 @@ import env from '../../services/env';
 
 export async function getLastBlockNum() {
     const { data } = await apolloClient.query({ query: LAST_EVENT_QUERY, variables: { owner: env.OWNER } });
-    const apiUrl = `https://api-goerli-optimistic.etherscan.io/api?module=contract&action=getcontractcreation&contractaddresses=${env.CONTRACT_ADDRESS}&apikey=${env.OPTIMISM_GOERLI_API_KEY}`;
+    const apiUrl = `${env.API_URL}/api?module=contract&action=getcontractcreation&contractaddresses=${env.CONTRACT_ADDRESS}&apikey=${env.OPTIMISM_GOERLI_API_KEY}`;
 
     if (!data.transactions.edges.length) {
       const txn = await getContractCreationTxn(apiUrl);

services/env.ts

@@ -9,6 +9,9 @@ interface Env {
   ETHERSCAN_API_KEY: string;
   ALCHEMY_KEY: string;
   OPTIMISM_GOERLI_API_KEY: string;
+  API_URL: string;
+  BUNDLR_FUNDING_CHAIN: string;
+  SEPOLIA_ALCHEMY_KEY: string;
 }
 
 const env: Env = {
@@ -17,6 +20,9 @@ const env: Env = {
   ETHERSCAN_API_KEY: process.env.ETHERSCAN_API_KEY as string,
   ALCHEMY_KEY: process.env.ALCHEMY_KEY as string,
   OPTIMISM_GOERLI_API_KEY: process.env.OPTIMISM_GOERLI_API_KEY as string,
+  API_URL: process.env.API_URL as string,
+  BUNDLR_FUNDING_CHAIN: process.env.BUNDLR_FUNDING_CHAIN as string,
+  SEPOLIA_ALCHEMY_KEY: process.env.SEPOLIA_ALCHEMY_KEY as string,
 };
 
 objectKeys(env).forEach((key) => {

viem/client.ts

@@ -2,9 +2,8 @@ import { createPublicClient, http } from 'viem';
 import { sepolia } from 'viem/chains';
 import env from '../services/env';
 
-const transport = http(
-  `https://opt-goerli.g.alchemy.com/v2/${env.ALCHEMY_KEY}`
-);
+
+const transport = http(`${env.API_URL}v2/${env.ALCHEMY_KEY}`);
 
 export const viemClient = createPublicClient({
   chain: sepolia,