Web3 Solidity Contract Deployment Script

compileDeployer.js

const solc = require("solc");
const fs = require("fs");
const Web3 = require('web3');
const password = "test";

//web3 provider. can also use ws if started node as websocket
var web3 = new Web3(
    new Web3.providers.HttpProvider('http://localhost:8545'));

//Read solidity contract file
const input = fs.readFileSync('./MinimalToken.sol');
console.log('Compiling Contract...');
const output = solc.compile(input.toString(),1);
const bytecode = output.contracts[':MinimalToken'].bytecode; 
const abi = output.contracts[':MinimalToken'].interface; 

fs.writeFile('contract_abi.json', abi, function (err) {
    if(err){
        return console.log(err);
    }
    console.log('Saved abi.json to disk');
})

console.log('Unlocking coinbase account');
let coinbase = web3.eth.getCoinbase((err, coinbase) => {
    web3.eth.personal.unlockAccount(coinbase, password);
});

coinbase.then(function(acct, err){
    console.log(acct);
    const basicStorageContract = new web3.eth.Contract(JSON.parse(abi));

    console.log('Deploying contract...');
    basicStorageContract.deploy(
        {
            data:'0x' + bytecode,
            arguments: [100000]//or whatever they are in contract constructor
        }
    ).send({
        from: acct,
    },function(err, res){
        if(err){
            console.log('error' + err);
        }
    })
    .on('receipt', function(receipt){
        // receipt example
        console.log(receipt);//txHash 
    })
    .then(function(newContractInstance){
        console.log(newContractInstance.options.address); // address from contract deployement
    });
});
//catch any errors from coinbase promise
coinbase.catch((err)=>{
    console.log(err);
});