New Twiddle

adapters.application.js

import DS from 'ember-data';

const { RESTAdapter } = DS;

export default RESTAdapter.extend({
  host: 'https://api.github.com'
});

adapters.repository.js

import ApplicationAdapter from './application';

export default ApplicationAdapter.extend({
  handleResponse(status, headers, payload, requestData) {
    return {
      repositories: payload 
    }
  }
});	

controllers.application.js

import Ember from 'ember';

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

models.repository.js

import Model from 'ember-data/model';
import attr from 'ember-data/attr';

export default Model.extend({
  name: attr('string'),
  fullName: attr('string'),
  url: attr('string')
});

router.js

import EmberRouter from '@ember/routing/router';
import config from './config/environment';

const Router = EmberRouter.extend({
  location: 'none',
  rootURL: config.rootURL
});

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

export default Router;

routes.repositories.js

import Ember from 'ember';

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

serializers.application.js

import DS from 'ember-data';

export default DS.RESTSerializer.extend({
});

serializers.repository.js

import ApplicationSerializer from './application';
import { camelize } from '@ember/string';

export default ApplicationSerializer.extend({
  extractAttributes(modelClass, resourceHash) {
    let attributes = {};
    
    Object.keys(resourceHash).forEach((key) => {
      attributes[camelize(key)] = resourceHash[key];
    });
    
    return attributes;
  }
});

templates.application.hbs

{{#link-to 'application'}}Home{{/link-to}}<br>
{{#link-to 'repositories'}}Repositories{{/link-to}}
{{outlet}}
<br>
<br>

templates.repositories.hbs

<h1>Public Repositories</h1>

{{#each model as |repo|}}
  Id: {{repo.id}}<br>
  Name: {{repo.name}}<br>
  Full name: {{repo.fullName}}<br>
  Url: {{repo.url}}<hr>
{{/each}}

twiddle.json

{
  "version": "0.15.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.2.2",
    "ember-template-compiler": "3.2.2",
    "ember-testing": "3.2.2"
  },
  "addons": {
    "ember-data": "3.2.0"
  }
}