Ember data tasks notifyAfterLoad example

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

routes.application.js

import Ember from 'ember';
import { allSettled, timeout, task } from 'ember-concurrency';

const notifyAfterLoad = function (hash, callback) {
  allSettled(Object.values(hash))
    .then(() => {
      callback(hash);
    });

  return hash;
};

export default Ember.Route.extend({
  model() {
    return notifyAfterLoad(
      { taskInstance: this.get('testTask').perform() },
      (hash) => { alert("callback! this should happen after task is finished") }
    );
  },
  testTask: task(function* () {
      yield timeout(1000);
      console.log('timing out...');
      yield timeout(1000);
      return { message: 'data!' };
  })
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{model.taskInstance.value.message}}
{{log model}}
<br>
<br>

templates.loading.hbs

<h1>Loading!...</h1>

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3",
    "ember-data-tasks": "1.0.2"
  }
}