hardhat.config.ts

import 'dotenv/config';
import {HardhatUserConfig} from 'hardhat/types';
import 'hardhat-deploy';
import 'hardhat-deploy-ethers';
import 'hardhat-gas-reporter';
import '@typechain/hardhat';
import '@nomiclabs/hardhat-etherscan';
import 'solidity-coverage';
import {node_url, accounts} from './utils/network';

const config: HardhatUserConfig = {
  solidity: {
    version: '0.8.0',
    settings: {
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
  namedAccounts: {
    deployer: 0,
  },
  etherscan: {
    apiKey: process.env.ETHERSCAN_API_KEY,
    // NB: hardhat verify currently doesn't support per-network API keys
    // for contract verification. When verifying on Polygon chains, use
    // process.env.POLYGONSCAN_API_KEY and process.env.ETHERSCAN_API_KEY
    // for L1 ethereum chains. You'll need to get an API key from each
    // of Etherscan and Polygonscan
  },
  networks: {
    hardhat: {
      // process.env.HARDHAT_FORK will specify the network that the fork is made from.
      // this line ensure the use of the corresponding accounts
      accounts: accounts(process.env.HARDHAT_FORK),
      forking: process.env.HARDHAT_FORK
        ? {
            url: node_url(process.env.HARDHAT_FORK),
            blockNumber: process.env.HARDHAT_FORK_NUMBER
              ? parseInt(process.env.HARDHAT_FORK_NUMBER)
              : undefined,
          }
        : undefined,
    },
    localhost: {
      url: node_url('localhost'),
      accounts: accounts(),
    },
    mainnet: {
      url: node_url('mainnet'),
      accounts: accounts('mainnet'),
    },
    rinkeby: {
      url: node_url('rinkeby'),
      accounts: accounts('rinkeby'),
      timeout: 60000,
    },
  },
  paths: {
    sources: 'contracts/*',
  },
  typechain: {
    outDir: 'typechain',
    target: 'ethers-v5',
  },
};

export default config;