hardhat.config.ts

import { task, HardhatUserConfig } from "hardhat/config";
import "@nomiclabs/hardhat-waffle";
import "@typechain/hardhat";
import "@nomiclabs/hardhat-ethers";
import "@nomiclabs/hardhat-etherscan";
import dotenv from "dotenv";

dotenv.config({ path: "./.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);
  }
});

const config: HardhatUserConfig = {
  defaultNetwork: "hardhat",
  networks: {
    hardhat: {},
    mainnet: {
      url: process.env.MAINNET_RPC || "",
      chainId: 1,
      accounts: {
        mnemonic: process.env.MNEMONIC,
      },
    },
    ropsten: {
      url: process.env.ROPSTEN_RPC || "",
      chainId: 3,
      accounts: {
        mnemonic: process.env.MNEMONIC,
      },
    },
    rinkeby: {
      url: process.env.RINKEBY_RPC || "",
      chainId: 4,
      accounts: {
        mnemonic: process.env.MNEMONIC,
      },
    },
    goerli: {
      url: process.env.GOERLI_RPC || "",
      chainId: 5,
      accounts: {
        mnemonic: process.env.MNEMONIC,
      },
    },
    kovan: {
      url: process.env.KOVAN_RPC || "",
      chainId: 42,
      accounts: {
        mnemonic: process.env.MNEMONIC,
      },
    },
    arbitrum_mainnet: {
      url: process.env.ARBITRUM_MAINNET_RPC || "",
      chainId: 421611,
      accounts: {
        mnemonic: process.env.MNEMONIC,
      },
    },
    arbitrum_testnet: {
      url: process.env.ARBITRUM_TESTNET_RPC || "",
      chainId: 421611,
      accounts: {
        mnemonic: process.env.MNEMONIC,
      },
    },
  },
  solidity: {
    version: "0.8.9",
    settings: {
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
  etherscan: {
    apiKey: process.env.ETHERSCAN_API_KEY,
  },
  paths: {
    sources: "./contracts",
    tests: "./test",
    cache: "./cache",
    artifacts: "./artifacts",
  },
  mocha: {
    timeout: 20000,
  },
};

export default config;