hardhat.config.js

require("dotenv").config();

require("@nomiclabs/hardhat-etherscan");
require("@nomiclabs/hardhat-waffle");
require("hardhat-gas-reporter");
require("solidity-coverage");
const {subtask} = require("hardhat/config");
const {TASK_COMPILE_SOLIDITY_GET_SOURCE_PATHS} = require("hardhat/builtin-tasks/task-names");

// 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);
  }
});

// Do not compile files that end with '.nocomp.sol'
subtask(TASK_COMPILE_SOLIDITY_GET_SOURCE_PATHS)
  .setAction(async (_, __, runSuper) => {
    const paths = await runSuper();

    return paths.filter(p => !p.endsWith(".nocomp.sol"));
  });

// 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 = {
  solidity: {
    "compilers": [
      {
        "version": "0.6.11",
        "settings": {
          "optimizer": {
            "enabled": true,
            "runs": 200
          }
        }
      },
      {
        "version": "0.8.11",
        "settings": {
          "optimizer": {
            "enabled": true,
            "runs": 200
          }
        }
      }
    ]
  },
  networks: {
    ropsten: {
      url: process.env.ROPSTEN_URL || "",
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    rinkeby: {
      url: process.env.RINKEBY_URL || "",
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    kovan: {
      url: process.env.KOVAN_URL || "",
      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    goerli: {
      url: process.env.GOERLI_URL || "",
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    opKovan: {
      url: process.env.OPTIMISTIC_KOVAN_URL || "",
      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    arbRinkeby: {
      url: process.env.ARBITRUM_RINKEBY_URL || "",
      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    arbNitro: {
      url: process.env.ARBITRUM_NITRO_URL || "",
      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    bobaRinkeby: {
      url: process.env.BOBA_RINKEBY_URL || "",
      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
  },
  gasReporter: {
    enabled: process.env.REPORT_GAS !== undefined,
    currency: "USD",
  },
  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,
      optimisticEthereum: process.env.OPTIMISMSCAN_API_KEY,
      optimisticKovan: process.env.OPTIMISMSCAN_API_KEY,
      arbitrumOne: process.env.ARBISCAN_API_KEY,
      arbitrumTestnet: process.env.ARBISCAN_API_KEY,
      polygon: process.env.POLYGONSCAN_API_KEY,
      polygonMumbai: process.env.POLYGONSCAN_API_KEY,
    }
  },
};