hardhat.config.ts

import { HardhatUserConfig } from "hardhat/config";
import "@nomicfoundation/hardhat-toolbox";
require('dotenv').config();
import "@nomicfoundation/hardhat-ethers";
import "@nomicfoundation/hardhat-chai-matchers";
import "@typechain/hardhat";
import "hardhat-gas-reporter";
import "solidity-coverage";
import "@nomicfoundation/hardhat-verify";
import "hardhat-deploy";
import "hardhat-deploy-ethers";

const config: HardhatUserConfig = {
  solidity: {
    version: '0.8.27',
  },
  defaultNetwork: "base-sepolia",
  namedAccounts: {
    deployer: {
      // By default, it will take the first Hardhat account as the deployer
      default: 0,
    },
  },
  networks: {
    // for mainnet
    'base-mainnet': {
      url: 'https://mainnet.base.org',
      accounts: [process.env.WALLET_KEY as string],
      gasPrice: 1000000000,
    },
    // for testnet
    'base-sepolia': {
      url: 'https://sepolia.base.org',
      accounts: [process.env.WALLET_KEY as string],
      gasPrice: 1000000000,
    },
    // for local dev environment
    'base-local': {
      url: 'http://localhost:8545',
      accounts: [process.env.WALLET_KEY as string],
      gasPrice: 1000000000,
    },
  },
  etherscan: {
    apiKey: {
      "base-sepolia": process.env.APIKEY as string,
     },
    customChains: [
      {
        network: "base-sepolia",
        chainId: 84532,
        urls: {
          apiURL: "https://api-sepolia.basescan.org/api",
          browserURL: "https://sepolia.basescan.org"
        }
      }
    ]
  },
};

export default config;