Ember + Rails API connection

I'm trying to get to work EmberCLI frontend app with my Rails API. For some reason it does not work. When I visit 'localhost:4200/artists' I see nothing but h1 tag. No API data. JS Console is empty. Any ideas?

Here's my adapter:

import DS from 'ember-data';

export default DS.Model.extend({
  name: DS.attr('string'),
  itunes_id: DS.attr('integer'),

});

Model:

import DS from 'ember-data';

export default DS.Model.extend({
  name: DS.attr('string'),
  itunes_id: DS.attr('integer'),

});

Router:

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: config.locationType
});

Router.map(function() {
  this.route('artists');
});

export default Router;

Route:

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
    return this.store.findAll('artist');
  }
});

And view:

<h1> Artists </h1>

<ul>
  {{#each artists as |artist|}}
    <li>Hello, {{artist.name}}!</li>
  {{/each}}
</ul>