helper-hardhat-config.ts

import {
  eEthereumNetwork,
  ePolygonNetwork,
  eXDaiNetwork,
  iParamsPerNetwork,
} from './helpers/types';

import dotenv from 'dotenv';
dotenv.config({});

const INFURA_KEY = process.env.INFURA_KEY || '';
const ALCHEMY_KEY = process.env.ALCHEMY_KEY || '';
const TENDERLY_FORK_ID = process.env.TENDERLY_FORK_ID || '';

const GWEI = 1000 * 1000 * 1000;

export const NETWORKS_RPC_URL: iParamsPerNetwork<string> = {
  [eEthereumNetwork.kovan]: ALCHEMY_KEY
    ? `https://eth-kovan.alchemyapi.io/v2/${ALCHEMY_KEY}`
    : `https://kovan.infura.io/v3/${INFURA_KEY}`,
  [eEthereumNetwork.ropsten]: ALCHEMY_KEY
    ? `https://eth-ropsten.alchemyapi.io/v2/${ALCHEMY_KEY}`
    : `https://ropsten.infura.io/v3/${INFURA_KEY}`,
  [eEthereumNetwork.main]: ALCHEMY_KEY
    ? `https://eth-mainnet.alchemyapi.io/v2/${ALCHEMY_KEY}`
    : `https://mainnet.infura.io/v3/${INFURA_KEY}`,
  [eEthereumNetwork.hardhat]: 'http://localhost:8545',
  [eEthereumNetwork.harhatevm]: 'http://localhost:8545',
  [eEthereumNetwork.tenderlyMain]: `https://rpc.tenderly.co/fork/${TENDERLY_FORK_ID}`,
  [ePolygonNetwork.mumbai]: ALCHEMY_KEY
  ? `https://polygon-mumbai.g.alchemy.com/v2/${ALCHEMY_KEY}`
  : `https://polygon-mumbai.infura.io/v3/${INFURA_KEY}`,
  [ePolygonNetwork.matic]: ALCHEMY_KEY
  ? `https://polygon-mainnet.g.alchemy.com/v2/${ALCHEMY_KEY}`
  : `https://polygon-mainnet.infura.io/v3/${INFURA_KEY}`,
  [eXDaiNetwork.xdai]: 'https://rpc.xdaichain.com/',
};