promise timeout

components.my-component.js

import Ember from 'ember';

function timeoutAfter2s(promise) {
  return new Ember.RSVP.Promise((resolve, reject) => {
    promise.then(resolve, reject);
    
    Ember.run.later(() => reject('timeout'), 2000);
  });
}

export default Ember.Component.extend({
  requestNonce() {
    return new Ember.RSVP.Promise(resolve => {
      Ember.run.later(() => resolve('nonce'), this.get('delay') * 1000);
    });
  },
  
  actions: {
    doIt() {
    	this.set('result', 'loading...');
      
      timeoutAfter2s(this.requestNonce())
        .then(result => this.set('result', `SUCCESS: ${result}`))
      	.catch(result => this.set('result', `REJECTED: ${result}`));
    }
  }
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

{{my-component delay=1}}
{{my-component delay=5}}

templates.components.my-component.hbs

<button {{action "doIt"}}>{{delay}}s request</button> {{result}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}