hardhat.base.config.ts

const path = require("path");
const config = require('dotenv').config({path: path.resolve(__dirname, '.env')});
const {
    ETHERSCAN_API_KEY,
    BSCSCAN_API_KEY,
    POLYGONSCAN_API_KEY,
    MNEMONIC,
    DEPLOY_GAS_LIMIT_MAX,
    DEPLOY_GAS_PRICE,
    INFURA_ID_PROJECT
} = config.parsed || {};

export default {
  networks: {
    hardhat: {
      allowUnlimitedContractSize: true,
      loggingEnabled: false
    },
    hhnode: {
      url: `http://127.0.0.1:8545`,
      accounts: [`0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80`],
      allowUnlimitedContractSize: true,
      //gasPrice: 8,
      gas: 10000000,
      loggingEnabled: false
    },
    mainnet: {
      url: `https://mainnet.infura.io/v3/${INFURA_ID_PROJECT}`,
    },
    ropsten: {
      url: `https://ropsten.infura.io/v3/${INFURA_ID_PROJECT}`,
      chainId: 3,
      accounts: [`0x${MNEMONIC || '1000000000000000000000000000000000000000000000000000000000000000'}`],
    },
    rinkeby: {
      url: `https://rinkeby.infura.io/v3/${INFURA_ID_PROJECT}`,
    },
    goerli: {
      url: `https://goerli.infura.io/v3/${INFURA_ID_PROJECT}`,
    },
    kovan: {
      url: `https://kovan.infura.io/v3/${INFURA_ID_PROJECT}`,
      chainId: 42,
      accounts: [`0x${MNEMONIC || '1000000000000000000000000000000000000000000000000000000000000000'}`],
      gasPrice: 8000000000
    },
    bscTestnet: {
      url: `https://data-seed-prebsc-2-s3.binance.org:8545`,
      chainId: 97,
      accounts: [`0x${MNEMONIC || '1000000000000000000000000000000000000000000000000000000000000000'}`]
    },
    bsc: {
      url: `https://bsc-dataseed3.binance.org`,
    },
    maticTestnet: {
      url: `https://rpc-mumbai.maticvigil.com`,
      chainId: 80001,
      accounts: [`0x${MNEMONIC || '1000000000000000000000000000000000000000000000000000000000000000'}`],
    },
    maticMainnet: {
      url: `https://rpc-mainnet.matic.quiknode.pro`,
      chainId: 137,
      accounts: [`0x${MNEMONIC || '1000000000000000000000000000000000000000000000000000000000000000'}`],
      gasPrice: 50_000_000_000
    }
  },
  etherscan: {
    // Your API key for Etherscan
    // Obtain one at https://etherscan.io/
    apiKey: `${POLYGONSCAN_API_KEY}`,
  },
}