deploy.js

/*
  Author: Soham Zemse (https://github.com/zemse)

  Using this script, the developer can deploy their contract on testnet, also from the code you can see that it is possible to deploy on mainnet too but still, please use Remix IDE for deploying contracts to mainnet blockchain, you'll thank me later.

  USAGE:
  node deploy.js <json-file-name-in-build-folder> <network> <privatekey> <constructor-args-if-any>
*/

const path = require('path');
const fs = require('fs-extra');
const ethers = require('ethers');

if(!process.argv[2]) {
  throw '\nNOTE: Please pass a file name or all flag, your network (homestead, ropsten, ...) as first comand line argument and private key as second command line argument.\neg => node deploy.js deployall rinkeby 0xa6779f54dc1e9959b81f448769450b97a9fcb2b41c53d4b2ab50e5055a170ce7\n';
}

if(!process.argv[3]) {
  throw '\nNOTE: Please pass your network (homestead, ropsten, ...) as first comand line argument and private key as second command line argument.\neg => node deploy.js deployall rinkeby 0xa6779f54dc1e9959b81f448769450b97a9fcb2b41c53d4b2ab50e5055a170ce7\n';

  if(!['homestead', 'ropsten', 'kovan', 'rinkeby', 'goerli'].includes(process.argv[3])) {
    throw `\nNOTE: Network should be: homestead, ropsten, kovan, rinkeby or goerli\n`
  }
}

if(!process.argv[4]) {
  throw '\nNOTE: Please pass your private key as comand line argument after network.\neg => node deploy.js deployall rinkeby 0xa6779f54dc1e9959b81f448769450b97a9fcb2b41c53d4b2ab50e5055a170ce7\n';
}

const provider = ethers.getDefaultProvider(process.argv[3]);
console.log(`\nUsing ${process.argv[3]} network...`);

console.log('\nLoading wallet...');
const wallet = new ethers.Wallet(process.argv[4], provider);
console.log(`Wallet loaded ${wallet.address}\n`);

const buildFolderPath = path.resolve(__dirname, 'build');

const deployFile = async jsonFileName => {
  console.log(`Preparing to deploy '${jsonFileName}' contract`);
  const jsonFilePath = path.resolve(__dirname, 'build', jsonFileName);
  const contractJSON = JSON.parse(fs.readFileSync(jsonFilePath, 'utf8'));

  const ContractFactory = new ethers.ContractFactory(
    contractJSON.abi,
    contractJSON.evm.bytecode.object,
    wallet
  );

  const contractInstance = await ContractFactory.deploy(...process.argv.slice(5));
  console.log(`Deploying '${jsonFileName}' contract at ${contractInstance.address}\nhttps://${process.argv[3] !== 'homestead' ? process.argv[3] : 'www'}.etherscan.io/tx/${contractInstance.deployTransaction.hash}\nwaiting for confirmation...`);

  await contractInstance.deployTransaction.wait();
  console.log(`Contract is deployed at ${contractInstance.address}\n`);
};

if(process.argv[2] === 'deployall') {
  fs.readdirSync(buildFolderPath).forEach(deployFile);
} else {
  deployFile(process.argv[2]);
}