New Twiddle

components.username-editor.js

import Ember from 'ember';

export default Ember.Component.extend({
  currentUsername: '',
  currentSecret: '',

  dataService: Ember.inject.service(),

  actions: {
    updateUsername() {
      const username = this.get('currentUsername');
      const secret = this.get('currentSecret');
      this.get('data').ident({ username, secret });
    }
  },

  didRender() {
    this.set('currentUsername', this.get('dataService.username'));
    this.set('currentSecret', this.get('dataService.secret'));
  }

});

controllers.application.js

import Ember from 'ember';
const { inject } = Ember;

export default Ember.Controller.extend({
  myService: inject.service(),
  appName: 'Ember Twiddle',
});

services.data-service.js

import Ember from 'ember';

export default Ember.Service.extend({
  username: 'foo',
  secret: 'bar'
});

services.my-service.js

import Ember from 'ember';

export default Ember.Service.extend({
  prop: 'hi'
});

templates.application.hbs

{{username-editor}}

templates.components.username-editor.hbs

  <section class="edit-group">
    {{input type="text" value=currentUsername placeholder='username'}} 

    {{input type="text" value=currentSecret placeholder='secret'}} <br />
    <button class="updateUsername btn btn-large" {{action (action 'updateUsername')}}>Save</button>
  </section>

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}