Simple script to get the DVIP balance in the sale contract

dvip-remaining.js

// using web3@1.0.0-beta.26, bluebird, bignumber.js, and lodash
'use strict';

const BN = require('bignumber.js');
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.HttpProvider('https://mainnet.infura.io/aR7WPNCrZhhnYRnn8yRT'));
const { bindKey } = require('lodash');
const { promisify } = require('bluebird');
const encodeFunctionCall = bindKey(web3.eth.abi, 'encodeFunctionCall');
const payload = encodeFunctionCall({
  name: 'balanceOf',
  inputs: [{
    name: 'owner',
    type: 'address'
  }]
}, [ '0x0d845706ddc11f181303a80828219c714ceb3687' ])
// payload is always 0x70a082310000000000000000000000000d845706ddc11f181303a80828219c714ceb3687
const call = promisify(bindKey(web3.eth, 'call'));
call({
  to: '0xadc46ff5434910bd17b24ffb429e585223287d7f',
  data: payload
}).then((v) => new BN(v).div(new BN(10).pow(8)).toPrecision())
  .then((v) => console.log(v + ' DVIP remaining in sale'));