hardhat.config.js

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

/**
 * @type import('hardhat/config').HardhatUserConfig
 */

const RINKEBY_RPC_URL = process.env.RINKEBY_RPC_URL || ""
const KOVAN_RPC_URL = process.env.KOVAN_RPC_URL || ""
const POLYGON_MAINNET_RPC_URL = process.env.POLYGON_MAINNET_RPC_URL || ""
const PRIVATE_KEY = process.env.PRIVATE_KEY || "0x"
// optional

// Your API key for Etherscan, obtain one at https://etherscan.io/
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || "Your etherscan API key"
const POLYGONSCAN_API_KEY = process.env.POLYGONSCAN_API_KEY || "Your polygonscan API key"
const REPORT_GAS = process.env.REPORT_GAS || false

module.exports = {
    defaultNetwork: "hardhat",
    networks: {
        hardhat: {
            // // If you want to do some forking, uncomment this
            // forking: {
            //   url: MAINNET_RPC_URL
            // }
            chainId: 31337,
        },
        localhost: {
            chainId: 31337,
        },
        // kovan: {
        //     url: KOVAN_RPC_URL,
        //     accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
        //     //accounts: {
        //     //     mnemonic: MNEMONIC,
        //     // },
        //     saveDeployments: true,
        //     chainId: 42,
        // },
        rinkeby: {
            url: RINKEBY_RPC_URL,
            accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
            //   accounts: {
            //     mnemonic: MNEMONIC,
            //   },
            saveDeployments: true,
            chainId: 4,
        },
        // mainnet: {
        //     url: MAINNET_RPC_URL,
        //     accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
        //     //   accounts: {
        //     //     mnemonic: MNEMONIC,
        //     //   },
        //     saveDeployments: true,
        //     chainId: 1,
        // },
        // polygon: {
        //     url: POLYGON_MAINNET_RPC_URL,
        //     accounts: PRIVATE_KEY !== undefined ? [PRIVATE_KEY] : [],
        //     saveDeployments: true,
        //     chainId: 137,
        // },
    },
    etherscan: {
        // yarn hardhat verify --network <NETWORK> <CONTRACT_ADDRESS> <CONSTRUCTOR_PARAMETERS>
        apiKey: {
            rinkeby: ETHERSCAN_API_KEY,
            kovan: ETHERSCAN_API_KEY,
            polygon: POLYGONSCAN_API_KEY,
        },
    },
    // gasReporter: {
    //     enabled: REPORT_GAS,
    //     currency: "USD",
    //     outputFile: "gas-report.txt",
    //     noColors: true,
    //     // coinmarketcap: process.env.COINMARKETCAP_API_KEY,
    // },
    // contractSizer: {
    //     runOnCompile: false,
    //     only: ["Raffle"],
    // },
    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 than on another
        },
        player: {
            default: 1,
        },
    },
    solidity: {
        compilers: [
            {
                version: "0.8.7",
            },
            {
                version: "0.4.24",
            },
        ],
    },
    // mocha: {
    //     timeout: 500000, // 500 seconds max for running tests
    // },
}