CMS Service

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: Ember.computed(function() {
    debugger;
    return 'Ember Twiddle';
  })
});

controllers.credit-card.js

import Ember from 'ember';
import { inject as service } from '@ember/service';
export default Ember.Controller.extend({
  
  // You can assume this is loaded when the template renders
  cms: computed('cmsService', 'routeName', function() {
    return this.cmsService.getCMSFor('routeName');
  })
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
});

routes.credit-card.js

import Ember from 'ember';
import { inject as service } from '@ember/service';

export default Ember.Route.extend({
  cms: service(),
  model(params) {
    return { id: '1', name: 'CIBC' };
    let model = this.store.find('credit-card', params.id);
    
    return this.cms.getCMSModel(this.routeName, model);
  },
  
  setupController(controller) {
   this._super(...arguments);
   controller.set('routeName', this.routeName);
  }
});

services.cms.js

import Ember from 'ember';
import { hash } from 'rsvp';

export default Ember.Service.extend({
//   getCMS(routeName) {
//     // async hits API
//     return this.ajax(routeName);
//   }
  
//   getCMSModel(routeName, modelPromise) {
//     return hash({
//       cms: this.getCMS(routeName),
//       modelPromise
//     }).then(({cms, modelPromise}) => {
//       this.setCacheKey(routeName, cms);
//       return modelPromise;
//     });
//   }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>  
{{model.name}}
<br>
<br>

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}