Injection without container

application.route.js

import Ember from 'ember';
import MyModel from '../models/my-model';

export default Ember.Route.extend({
  model() {
    return MyModel.create();
  },
});

application.template.hbs

<h1>Welcome to MyApp</h1>
<br>
<br>
The value of <code>MyMode.foo</code> is <code>"{{model.foo}}"</code>
<br>
<br>

models.my-model.js

import Ember from 'ember';

export default Ember.Object.extend({
  foo: Ember.inject.service('my-service'),
});

services.my-service.js

import Ember from 'ember';

export default Ember.Service.extend({
  serviceFoo: Ember.computed(function() {
    return 'foo from service';
  })
});

twiddle.json

{
  "version": "0.4.10",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.9/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/1.13.11/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.9/ember-template-compiler.js"
  }
}