fetchIEX.js

import R from 'ramda';
import fetch from 'node-fetch';

const getData = async () => {
  const response = await fetch("https://api.iextrading.com/1.0/stock/aapl/batch?types=quote,news,chart&range=5y&last=1");
  const json = await response.json();
  return json.chart.map(({date, close}) => ({date: new Date(date), value: close}));
};

getData().then(res => console.log(R.head(res)));
// { date: Sun Jul 10 2016 20:00:00 GMT-0400 (EDT), value: 93.7011 }