This is a wrapper over the original web3.js library. Use it with iolite-provider to be able to use extra fields of iOlite.
npm install --save iolite-web3
const Web3 = require('iolite-web3')
const IoliteProvider = require('iolite-provider')
const provider = new IoliteProvider('https://sia.node.iolite.io')
const web3 = new Web3(provider)
});