hardhat.config.js

require("@nomiclabs/hardhat-waffle");
require('hardhat-contract-sizer');
require('hardhat-abi-exporter');
require('hardhat-gas-reporter');
require('@typechain/hardhat');
require('@nomiclabs/hardhat-ethers');
require('@nomiclabs/hardhat-etherscan');
require("hardhat-tracer");

// 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 = {
  paths: {
    sources: './contracts',
    tests: './test',
    artifacts: './build/contracts',
  },
  solidity: {
    compilers: [
      {
        version: '0.8.9',
        settings: {
          optimizer: {
            enabled: true,
            runs: 100,
          },
          outputSelection: {
            '': {
              '': ['*'],
            },
          },
        },
      },
    ],
  },
  defaultNetwork: 'hardhat',
  networks: {
    hardhat: {
      chainId: 1337,
      loggingEnabled: false,
      gas: 12000000,
      gasPrice: 'auto',
      blockGasLimit: 12000000,
      mining: {
        auto: true,
        interval: 30000,
      },
      hardfork: 'london',
    },
    mainnet: {
      url: "https://mainnet.infura.io/v3/<>"
    }
  },
  etherscan: {
    apiKey: "<>"
  },
  typechain: {
    outDir: 'build/types',
    target: 'ethers-v5',
  },
  abiExporter: {
    path: './build/abis',
    clear: false,
    flat: true,
  },
  contractSizer: {
    alphaSort: true,
    runOnCompile: false,
    disambiguatePaths: false,
  },
  gasReporter: {
    enabled: process.env.REPORT_GAS ? true : false,
    showTimeSpent: true,
    currency: 'USD',
  },
};