Smart contracts with Hardhat

001_deploy_test.ts

import { HardhatRuntimeEnvironment } from 'hardhat/types';
import { DeployFunction } from 'hardhat-deploy/types';

const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
  const {
    deployments: { deploy },
    getNamedAccounts,
  } = hre;
  const { deployer } = await getNamedAccounts();

  await deploy('ERC20', {
    from: deployer,
    args: ['Medium', 'MDM'],
    log: true,
  });
};

export default func;
func.tags = ['ERC20'];

ERC20.sol

//SPDX-License-Identifier: Unlicense
pragma solidity 0.8.3;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract _ERC20 is ERC20 {
    constructor (string memory _name, string memory _symbol) ERC20(_name, _symbol) {}
}

hardhat.config.ts

import '@nomiclabs/hardhat-waffle';
import '@nomiclabs/hardhat-ethers';
import 'hardhat-deploy';

import * as dotenv from 'dotenv';
import { HardhatUserConfig } from 'hardhat/config';

dotenv.config();
/* This loads the variables in your .env file to `process.env` */

const { DEPLOYER_PRIVATE_KEY, INFURA_PROJECT_ID } = process.env;

const config: HardhatUserConfig = {
  solidity: '0.8.3',
  networks: {
    mainnet: {
      url: `https://mainnet.infura.io/v3/${INFURA_PROJECT_ID}`,
      chainId: 1,
      accounts: [`0x${DEPLOYER_PRIVATE_KEY}`],
    },
    kovan: {
      url: `https://kovan.infura.io/v3/${INFURA_PROJECT_ID}`,
      chainId: 42,
      accounts: [`0x${DEPLOYER_PRIVATE_KEY}`],
    },
  },
  namedAccounts: {
    deployer: 0,
  },
};

export default config;

network_bsc.ts

    bsc_testnet: {
      url: 'https://data-seed-prebsc-1-s1.binance.org:8545',
      chainId: 97,
      accounts: [`0x${DEPLOYER_PRIVATE_KEY}`],
    },
    bsc_mainnet: {
      url: 'https://bsc-dataseed.binance.org/',
      chainId: 56,
      accounts: [`0x${DEPLOYER_PRIVATE_KEY}`],
    },