Web3 Beta deploy code

deploy.js

#! /usr/bin/env node

const c = console

const Web3 = require('web3')
const {promisify} = require('util')

const web3 = new Web3('ws://localhost:8546') // ws are faster
// const web3 = new Web3('http://localhost:8545') // standard http json rpc

const eth = web3.eth

const interf = require("./build/contracts/contract-name-truffle-interface.json")

const main = async () => {

  const accounts = await eth.getAccounts()
  account = accounts[0]
  c.log("Account:", account)

  const balance = await eth.getBalance(account)
  c.log("Balance:", balance)

  c.log("Interface:", interf)

  c.log(interf)
  const abi = interf.abi
  const bytecode = interf.bytecode
  const address = interf.address // for existing contract

  // existing contract:
  // const MyContractClass = new eth.Contract(abi, address, { from: account }) // contract class

  // new contract:
  const MyContractClass = new eth.Contract(abi, { from: account, data: bytecode }) // contract class

  // estimate gas not usually needed in private chain
  // const MyCtrEstimateGas =  promisify(MyContractClass.deploy().estimateGas)
  const MyCtrDeploy = promisify(MyContractClass.deploy().send)

  // const gasEst = await MyCtrEstimateGas()
  // c.log("Gas estimation:", gasEst) // 1270000

  const deployment = await MyCtrDeploy({
      from: account,
      // for private chain
      // gas: 50....million,

      // for public chain 
      // gas: 1270000, (from the estimation)
      // gasPrice: '17000000000' (good currently)
  })
  c.log(deployment)

}

main()
  .catch((err) => {
    c.error(err)
  })