hardhat.config.js

require("@nomicfoundation/hardhat-toolbox");
require("@nomicfoundation/hardhat-verify");
// require("@nomiclabs/hardhat-etherscan");
require("hardhat-contract-sizer");
require("solidity-coverage");
require("dotenv").config();
require("hardhat-gas-reporter");
require("hardhat-deploy");

const SEPOLIA_RPC_URL =
  process.env.SEPOLIA_RPC_URL || "https://www.sepolia.com/example";
const PRIVATE_KEY = process.env.PRIVATE_KEY || "0XKEY";
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || "Key";
const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY || "key";

/** @type import('hardhat/config').HardhatUserConfig */
module.exports = {
  defaultNetwork: "hardhat",
  networks: {
    sepolia: {
      url: SEPOLIA_RPC_URL,
      accounts: [PRIVATE_KEY],
      chainId: 11155111,
      blockConfirmations: 6,
    },
    hardhat: {
      chainId: 31337,
    },
    localhost: {
      url: "http://127.0.0.1:8545/",
      // accounts: Thanks hardhat!
      chainId: 31337,
    },
  },
  solidity: {
    compilers: [{ version: "0.8.8" }, { version: "0.8.24" }],
  },
  etherscan: {
    apiKey: ETHERSCAN_API_KEY,
  },
  gasReporter: {
    enabled: true,
    outputFile: "gas-report.txt",
    noColors: true,
    currency: "USD",
    token: "SEPOLIA",
  },
  contractSizer: {
    runOnCompile: false,
    only: ["OurToken"],
  },
  namedAccounts: {
    deployer: {
      default: 0, // here this will by default take the first account as deployer
      1: 0, // similarly on mainnet, it will take the first account as deployer.
      // Note though that depending on how hardhat network are configured, the account 0 on one network can be different to on another
    },
  },
  mocha: {
    timeout: 200000, // 200 seconds max for running tests
  },
};