extactMeta + query + JSONSerializer

application.controller.js

import Ember from 'ember';

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

application.route.js

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
    return this.get('store').query('user');
  },

  setupController(controller, model) {
   	this._super(...arguments);
    controller.set('metadata', JSON.stringify(model.get('meta')));
  }
});

application.serializer.js

import DS from 'ember-data';

export default DS.JSONSerializer.extend({
	extractMeta (store, modelClass, payload) {
    // Only pitfall, that this is called twice
	  // First from normalizeQueryResponse below and
    // second time from private _normalizeResponse
    // so you probably need some conditionals here
    // OR you could rename it "myExtractMeta" - then theres no twice function call
    return payload.pagination;
  },
  
  normalizeQueryResponse (store, primaryModelClass, payload, id, requestType) {
    let meta = this.extractMeta(store, primaryModelClass, payload)
          
		let doc = this._super(store, primaryModelClass, payload.result, id, requestType);
    
		doc.meta = meta;
    return doc;
  }
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
List of users:

<ul>
  {{#each model as |user|}}
    <li>{{user.name}}</li>
  {{/each}}
</ul>

Metadata:

<p>{{metadata}}</p>

models.user.js

import DS from 'ember-data';

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

twiddle.json

{
  "version": "0.4.17",
  "EmberENV": {
    "FEATURES": {}
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.2.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember-template-compiler.js"
  }
}

user.adapter.js

import DS from 'ember-data';

export default DS.Adapter.extend({
  query() {
    return {
    	result: [{
        id: 1,
      	name: 'User'
      },{
        id: 2,
      	name: 'Second User'
      }],
      pagination: {
        page: 1,
        total: 100
      }
    }
  }
});