Ember CLI Mirage Dummy App

controllers.application.js

import Ember from 'ember';

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

mirage.config.js

import Mirage from 'ember-cli-mirage';

export default function() {
  window.server = this;
  
  this.get('/posts');
};

mirage.models.post.js

import { Model, belongsTo } from 'ember-cli-mirage';

export default Model.extend({});

mirage.scenarios.default.js

export default function(server) {
  server.create('post', {
    title: 'Ember Considered Harmful'
  });
}

mirage.serializers.application.js

import { JSONAPISerializer } from 'ember-cli-mirage';

export default JSONAPISerializer.extend({});

models.post.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  title: attr('string')
});

routes.application.js

import Ember from 'ember';

let err = {
  "errors": {
    "name": [
      "SERVER ERROR"
    ]
  }
};

export default Ember.Route.extend({
  model() { 
    return this.store.findAll('post')
      .then((posts) => {
        //throw err;
        return posts;
      }).catch((err) => {
        return err;
      });
  }
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

.error {
  color: red;
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>

{{#each model.errors.name as |error|}}
  <div class="error">
    {{error}}
  </div>
{{/each}}

{{#each model as |post|}}
  <p>TITLE: {{post.title}}</p>
{{/each}}

twiddle.json

{
  "version": "0.12.1",
  "ENV": {
    "ember-cli-mirage": {
      "enabled": true
    }
  },
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1",
    "ember-cli-mirage": "0.3.0"
  }
}