ds-realtime-chart--sever.js

var ds = require('deepstream.io-client-js')
var data = require('./data.json');


var client = ds('APP-URL').login()

client.rpc.provide( 'price-chart', ( request, response ) => {
    console.log(data);
    response.send( formattedData( data.bpi ) );
});

var curPrice = client.record.getRecord('BTC/price');
curPrice.whenReady((record) => {
  setInterval(() => {
    var price = 1200 * (0.99 + Math.random() / 10)

    console.log('setting...')
    record.set('price', price, (err) => {
      if (err) {
        console.log(err)
        return
      }
      console.log('Set price to', price)
    })
  }, getRandom(1000, 3000))
})

function getRandom(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min + 1)) + min;
}

function formattedData(data) {
  var nArray = [];
  var iArray = Object.keys(data);
  iArray.forEach(x => {
    var nObject = {y: data[x]}
    nArray.push(nObject)
  })
  return nArray;
}

console.log('Running')