promise-proxy-mixin-example

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  isBooked: Ember.computed(function() {
  	var ObjectPromiseProxy = Ember.ObjectProxy.extend(Ember.PromiseProxyMixin);

		return ObjectPromiseProxy.create({
  		promise: $.getJSON('https://httpbin.org/get')
		});
  })
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

<p>isPending: {{if isBooked.isPending "pending" "-"}}</p>
<p>isSettled: {{if isBooked.isSettled "settled" "-"}}</p>
<p>isRejected: {{if isBooked.isRejected "rejected" "-"}}</p>
<p>isFulfilled: {{if isBooked.isFulfilled isBooked.origin "-"}}</p>

twiddle.json

{
  "version": "0.8.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.2",
    "ember-template-compiler": "2.5.1"
  }
}