hardhat.config.js

require("dotenv").config();

require("@nomiclabs/hardhat-etherscan");
require("@nomiclabs/hardhat-waffle");
require("hardhat-gas-reporter");
require("solidity-coverage");
const { utils } = require("ethers");
const fs = require("fs");


const { isAddress, getAddress, formatUnits, parseUnits } = utils;

//
// Select the network you want to deploy to here:
//
const defaultNetwork = "matic";

// 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

/**
 * @type import('hardhat/config').HardhatUserConfig
 */
module.exports = {
  networks: {
    hardhat: {
      forking: {
        url: "https://mainnet.infura.io/v3/" + process.env.INFURA_ID,
      }
    },
    localhost: {
      url: "http://localhost:8545"
    },
    ropsten: {
      url: "https://ropsten.infura.io/v3/" + process.env.INFURA_ID,
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    kovan: {
      url: "https://kovan.infura.io/v3/" + process.env.INFURA_ID,
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    main: {
      url: "https://mainnet.infura.io/v3/" + process.env.INFURA_ID,
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    matic: {
      url: "https://polygon-mainnet.g.alchemy.com/v2/" + process.env.ALCHEMY_ID,
      accounts:
      process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    matic_mumbai: {
      url: "https://polygon-mumbai.infura.io/v3/" + process.env.INFURA_ID,
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
  },
  gasReporter: {
    enabled: process.env.REPORT_GAS !== undefined,
    currency: "USD",
  },
  etherscan: {
    apiKey: process.env.ETHERSCAN_API_KEY,
  },
  solidity: {
    compilers: [
      {
        version: "0.8.1"
      },
      {
        version: "0.6.8"
      },
      {
        version: "0.6.12",
        settings: {
          optimizer: {
            enabled: true,
            runs: 200
          }
        }
      }
    ]
  },
  mocha: {
    timeout: 80000
  }
};