chore: move default alchemy api key to the variable

packages/nextjs/scaffold.config.ts

@@ -8,6 +8,8 @@ export type ScaffoldConfig = {
   onlyLocalBurnerWallet: boolean;
 };
 
+export const DEFAULT_ALCHEMY_API_KEY = "oKxs-03sij-U_N0iOlrSsZFr29-IqbuF";
+
 const scaffoldConfig = {
   // The networks on which your DApp is live
   targetNetworks: [chains.hardhat],
@@ -20,7 +22,7 @@ const scaffoldConfig = {
   // You can get your own at https://dashboard.alchemyapi.io
   // It's recommended to store it in an env variable:
   // .env.local for local testing, and in the Vercel/system env config for live apps.
-  alchemyApiKey: process.env.NEXT_PUBLIC_ALCHEMY_API_KEY || "oKxs-03sij-U_N0iOlrSsZFr29-IqbuF",
+  alchemyApiKey: process.env.NEXT_PUBLIC_ALCHEMY_API_KEY || DEFAULT_ALCHEMY_API_KEY,
 
   // This is ours WalletConnect's default project ID.
   // You can get your own at https://cloud.walletconnect.com

packages/nextjs/services/web3/wagmiConfig.tsx

@@ -2,7 +2,7 @@ import { wagmiConnectors } from "./wagmiConnectors";
 import { Chain, createClient, fallback, http } from "viem";
 import { hardhat, mainnet } from "viem/chains";
 import { createConfig } from "wagmi";
-import scaffoldConfig from "~~/scaffold.config";
+import scaffoldConfig, { DEFAULT_ALCHEMY_API_KEY } from "~~/scaffold.config";
 import { getAlchemyHttpUrl } from "~~/utils/scaffold-eth";
 
 const { targetNetworks } = scaffoldConfig;
@@ -21,7 +21,7 @@ export const wagmiConfig = createConfig({
 
     const alchemyHttpUrl = getAlchemyHttpUrl(chain.id);
     if (alchemyHttpUrl) {
-      const isUsingDefaultKey = scaffoldConfig.alchemyApiKey === "oKxs-03sij-U_N0iOlrSsZFr29-IqbuF";
+      const isUsingDefaultKey = scaffoldConfig.alchemyApiKey === DEFAULT_ALCHEMY_API_KEY;
       // If using default Scaffold-ETH 2 API key, we prioritize the default RPC
       rpcFallbacks = isUsingDefaultKey ? [http(), http(alchemyHttpUrl)] : [http(alchemyHttpUrl), http()];
     }