hardhat.config.js

require('@nomiclabs/hardhat-waffle');
require('solidity-coverage');
require('hardhat-gas-reporter');
require('dotenv').config();

// 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 () => {
  const accounts = await 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: {
    version: '0.7.6',
    settings: {
      optimizer: {
        enabled: true,
        runs: 200000,
      },
    },
  },
  networks: {
    hardhat: {
      chainId: 1337,
    },
  },
  gasReporter: {
    enabled: process.env.REPORT_GAS ? true : false,
    currency: 'USD',
    gasPrice: 100,
    coinmarketcap: process.env.COINMARKETCAP,
  },
};