hardhat.config.ts

import * as dotenv from "dotenv";

import { HardhatUserConfig, task } from "hardhat/config";
import "@nomiclabs/hardhat-etherscan";
import "@nomiclabs/hardhat-waffle";
import "@typechain/hardhat";
import "hardhat-gas-reporter";
import "solidity-coverage";

dotenv.config();

const {
  ALCHEMY_API_KEY, 
  PRIVATE_KEY, 
  ETHERSCAN_API_KEY
} = process.env;

// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html
task("accounts", "Prints the list of accounts", async (taskArgs, hre) => {
  const accounts = await hre.ethers.getSigners();

  for (const account of accounts) {
    console.log(account.address);
  }
});

// You need to export an object to set up your config
// Go to https://hardhat.org/config/ to learn more

const config: HardhatUserConfig = {
  solidity: {
    version: "0.8.7",
    settings: {
      optimizer: {
        enabled: true,
        runs: 200
      }
    }
  },
  networks: {
    hardhat: {
      forking: {
        enabled: true,
        url: `https://eth-mainnet.g.alchemy.com/v2/${ALCHEMY_API_KEY}`,
        blockNumber: 14693247
      }
    },
    sepolia: {
      url: `https://eth-sepolia.g.alchemy.com/v2${ALCHEMY_API_KEY}`,
      chainId: 11_155_111,
      accounts: [PRIVATE_KEY as string]
    },
    mainnet: {
      url: `https://eth-mainnet.g.alchemy.com/v2/${ALCHEMY_API_KEY}`,
      chainId: 1,
      accounts: [PRIVATE_KEY as string]
    }
  },
  gasReporter: {
    enabled: true,
    currency: 'USD',
  },
  etherscan: {
    apiKey: ETHERSCAN_API_KEY,
  }
};

export default config;