add file

src/config.ts

@@ -0,0 +1,18 @@
+import { Common } from "@ethereumjs/common";
+import { ethers } from "ethers";
+import Web3 from "web3";
+
+const config = {
+  chainId: 11155111,
+  // providerUrl: "https://rpc.sepolia.ethpandaops.io",
+  // providerUrl: "https://sepolia.gateway.tenderly.co",
+  providerUrl: "https://rpc2.sepolia.org",
+  chain: "sepolia",
+};
+
+export const web3 = new Web3(config.providerUrl);
+export const common = new Common({ chain: config.chain });
+export const provider = new ethers.JsonRpcProvider(
+  config.providerUrl,
+  config.chainId
+);