controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  datapoints: [],

  ipUpDownData: Ember.computed('datapoints', function() {
    let controller = this;
    var timestamp = [];
    var ipup = [];
    var ipdown = [];
    timestamp.push('timestamp');
    ipup.push('ipup');
    ipdown.push('ipdown');
    // console.log(controller.get('datapoints').toArray());
    controller.get('datapoints').forEach(function(i) {
      timestamp.push(i.get('timestamp'));
      ipup.push(i.get('ipup'));
      ipdown.push(i.get('ipdown'));
    });
    let d = {
      xs: {
        'ipup': 'timestamp',
        'ipdown': 'timestamp',
      },
      columns: [
        timestamp,
        ipup,
        ipdown
      ],
      type: 'spline',
      types: {
        ipdown: 'area-spline'
      },
      colors: {
        ipup: '#2d74d0',
        ipdown: '#ff81be'
      }
    }
    return d;
  }),
  point: {
    show: false
  }
});