hardhat.config.ts

import { HardhatUserConfig } from 'hardhat/config';
import '@nomicfoundation/hardhat-toolbox';

require('dotenv').config();

const config: HardhatUserConfig = {
  solidity: {
    version: '0.8.23',
    settings: {
      optimizer: {
        enabled: true,
        runs: 100,
      },
      viaIR: true,
    },
  },
  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,
    },
  },
  defaultNetwork: 'hardhat',
  etherscan: {
    apiKey: process.env.BASESCAN_API_KEY,
    customChains: [
      {
        network: "base-sepolia",
        chainId: 84532,
        urls: {
          apiURL: "https://api-sepolia.basescan.org/api",
          browserURL: "https://sepolia.basescan.org"
        }
      }
    ]
  },
};

export default config;