hardhat.config.js

require("dotenv").config();
require("@nomicfoundation/hardhat-toolbox");
require("@nomiclabs/hardhat-ethers");
require("@nomiclabs/hardhat-etherscan");

/** @type import('hardhat/config').HardhatUserConfig */
module.exports = {
  defaultNetwork: "hardhat",
  networks: {
    mumbai: {
      url: "https://rpc-mumbai.maticvigil.com",
      accounts:
        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
      blockGasLimit: 10000000,
      gas: 10000000,
    },
  },
  solidity: {
    version: "0.4.11",
    settings: {
      optimizer: {
        enabled: true,
        runs: 200,
      },
    },
  },
  etherscan: {
    apiKey: process.env.POLYGONSCAN_API_KEY,
  },
};