hardhat.config.js

require("dotenv").config();

require("@nomiclabs/hardhat-etherscan");
require("@nomiclabs/hardhat-waffle");
require("@nomiclabs/hardhat-web3");
require("hardhat-gas-reporter");
require("solidity-coverage");

// 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 = {
  solidity: "0.8.13",
  networks: {
    hardhat: {
      initialBaseFeePerGas: 0, // workaround from https://github.com/sc-forks/solidity-coverage/issues/652#issuecomment-896330136 . Remove when that issue is closed.
      blockGasLimit: 3000000000,
    },
    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] : [],
    },
    arbitrum: {
      url: process.env.ARBITRUM_URL || "",
      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    ropsten: {
      url: process.env.ROPSTEN_URL || "",
      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    optimism: {
      url: process.env.OPTIMISM_URL || "",
      accounts: process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
    },
    w3qGalileo: {
      url: process.env.W3QGALILEO_URL || "",
      accounts:
        process.env.PRIVATE_KEY !== undefined &&
        process.env.PRIVATE_KEY2 !== undefined &&
        process.env.PRIVATE_KEY3 !== undefined
          ? [process.env.PRIVATE_KEY, process.env.PRIVATE_KEY2, process.env.PRIVATE_KEY3]
          : [],
    },
  },
  gasReporter: {
    enabled: process.env.REPORT_GAS !== undefined,
    currency: "USD",
  },
  etherscan: {
    apiKey: process.env.ETHERSCAN_API_KEY,
  },
  mocha: {
    grep: process.env.MOCHA_GREP || "",
    timeout: 80000,
  },
};