hardhat.config.ts

import { HardhatUserConfig, task } from "hardhat/config";
import { config as dotEnvConfig } from "dotenv";
dotEnvConfig();
import "hardhat-prettier";
import "@typechain/hardhat";
import "solidity-coverage";
import "@nomiclabs/hardhat-ethers";
import "@openzeppelin/hardhat-upgrades";

import "@nomiclabs/hardhat-etherscan";

// 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 (_args, 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

/**
 * @type import('hardhat/config').HardhatUserConfig
 */
const config: HardhatUserConfig = {
  solidity: {
    version: "0.8.2", // must be 0.8.2 due to ERC1967UpgradeUpgradeable.sol
    settings: {
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
  networks: {
    localhost: {
      url: "http://127.0.0.1:8545",
      accounts: [process.env.PRIVATE_KEY || ""],
    },
    hardhat: {
      //   forking: {
      //     url: 'https://ropsten.infura.io/v3/' + process.env.INFURA_API_KEY,
      //   },
    },
    ropsten: {
      url: `https://ropsten.infura.io/v3/${process.env.INFURA_API_KEY}`,
      accounts: [`0x${process.env.PRIVATE_KEY}`],
    },
    mumbai: {
      url: `https://polygon-mumbai.infura.io/v3/${process.env.INFURA_API_KEY}`,
      accounts: [`0x${process.env.PRIVATE_KEY}`],
      gasPrice: 8000000000,
    },
    polygon: {
      url: `https://polygon-mainnet.infura.io/v3/${process.env.INFURA_API_KEY}`,
      accounts: [`0x${process.env.PRIVATE_KEY}`],
      gasPrice: 8000000000,
      timeout: 4000000,
    },
    rinkeby: {
      url: `https://rinkeby.infura.io/v3/${process.env.INFURA_API_KEY}`,
      accounts: [`0x${process.env.PRIVATE_KEY}`],
    },
    goerli: {
      url: `https://goerli.infura.io/v3/${process.env.INFURA_API_KEY}`,
      accounts: [`0x${process.env.PRIVATE_KEY}`],
    },
    arbitrum: {
      url: `https://arbitrum-mainnet.infura.io/v3/${process.env.INFURA_API_KEY}`,
      accounts: [`0x${process.env.PRIVATE_KEY}`],
    },
  },
  etherscan: {
    apiKey: {
      mainnet: process.env.ETHERSCAN_API_KEY,
      ropsten: process.env.ETHERSCAN_API_KEY,
      rinkeby: process.env.ETHERSCAN_API_KEY,
      goerli: process.env.ETHERSCAN_API_KEY,
      kovan: process.env.ETHERSCAN_API_KEY,
      // polygon
      polygon: process.env.POLYGONSCAN_API_KEY,
      polygonMumbai: process.env.POLYGONSCAN_API_KEY,
    },
  },
};

//npx hardhat run --network ropsten deploy/001_deploy_contracts.ts

export default config;