Small snippet to parse json string that could be formatted in utf16le and still be able to consume json strings in utf8

fetch_parse_json.js

const fetch = require('node-fetch');
const encoding = require('encoding');

fetch('https://open.gsa.gov/code.json')
  .then(response => response.buffer())
  .then(json => {
    let text = {};

    if(json.indexOf('\uFEFF', 0, 'utf16le') === 0 ) {
      text = encoding.convert(json, 'utf8', 'utf16le');
    } else {
      text = json.toString();
    }

    console.log(JSON.parse(text));
  });