helper-hardhat-config.js

const { ethers } = require("ethers")

const networkConfig = {
    4: {
        name: "rinkeby",
        vrfCoordinatorV2: "0x6168499c0cFfCaCD319c818142124B7A15E857ab",
        entranceFee: ethers.utils.parseEther("0.01"),
        gasLane: "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc",
        subscriptionId: "10529",
        callbackGasLimit: "500000",
        interval: "30",
    },
    5: {
        name: "goerli",
        entranceFee: ethers.utils.parseEther("0.01"),
        subscriptionId: "10529",
        callbackGasLimit: 500000,
        interval: "30",
    },
    31337: {
        name: "hardhat",
        entranceFee: ethers.utils.parseEther("0.01"),
        gasLane: "0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc", // not really necessary
        callbackGasLimit: "500000",
        interval: "30",
    },
}

const developmentChains = ["hardhat", "localhost"]

module.exports = {
    networkConfig,
    developmentChains,
}