hardhat.config.ts

import { HardhatUserConfig } from "hardhat/config"
import "hardhat-contract-sizer"
import "@nomiclabs/hardhat-waffle"
import "@nomiclabs/hardhat-etherscan"
import "@nomiclabs/hardhat-web3"
import "solidity-coverage"
import "hardhat-gas-reporter"
import "hardhat-deploy"
import "hardhat-deploy-ethers"
import "./tasks"
import * as dotenv from "dotenv";
dotenv.config({ path: __dirname+'/.env' });

function getMnemonic(networkName) {
  if (networkName) {
    const mnemonic = process.env['MNEMONIC_' + networkName.toUpperCase()]
    if (mnemonic && mnemonic !== '') {
      return mnemonic
    }
  }

  const mnemonic = process.env.MNEMONIC
  if (!mnemonic || mnemonic === '') {
    return 'test test test test test test test test test test test junk'
  }

  return mnemonic
}

function accounts(chainKey) {
  return { mnemonic: getMnemonic(chainKey) }
}

// You need to export an object to set up your config
// Go to https://hardhat.org/config/ to learn more

/**
 * @type import('hardhat/config').HardhatUserConfig
 */
const config: HardhatUserConfig = {

  solidity: {
    compilers: [
      {
        version: "0.8.12",
        settings: {
          optimizer: {
            enabled: true,
            runs: 200
          }
        }
      }
    ]
  },
  contractSizer: {
    alphaSort: false,
    runOnCompile: true,
    disambiguatePaths: false,
  },
  namedAccounts: {
    deployer: {
      default: 0,
    },
    proxyOwner: {
      default: 1,
    },
  },
  networks: {
    hardhat: {
      accounts: accounts(),
    },
     ethereum: {
       url: "https://mainnet.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161", // public infura endpoint
       chainId: 1,
       accounts: accounts(),
     },
    bsc: {
      url: "https://bsc-dataseed1.binance.org",
      chainId: 56,
      accounts: accounts(),
    },
    avalanche: {
      url: "https://api.avax.network/ext/bc/C/rpc",
      chainId: 43114,
      accounts: accounts(),
    },
    arbitrum: {
      url: `https://arb1.arbitrum.io/rpc`,
      chainId: 42161,
      accounts: accounts(),
    },
    'bsc-testnet': {
      url: "https://data-seed-prebsc-2-s3.binance.org:8545",
      chainId: 97,
      accounts: accounts(),
    },
    fuji: {
      url: `https://api.avax-test.network/ext/bc/C/rpc`,
      chainId: 43113,
      accounts: accounts(),
    },
    'arbitrum-goerli': {
      url: `https://goerli-rollup.arbitrum.io/rpc/`,
      chainId: 421613,
      accounts: accounts(),
    }
  }
};
export default config