ember data call create record response

adapters.post.js

import DS from 'ember-data';

export default DS.RESTAdapter.extend();

controllers.application.js

import Ember from 'ember';

let ids = 0;

$.mockjax({
  type: 'POST',
  url: '/posts',
  responseText: function(data) {
   console.log('data', data);
   return {
     post: {
       'non-id-primary-key': ++ids,
     } 
   }
  }
});
export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  allPosts: Ember.computed(function() {
    return this.store.peekAll('post');
  }),
  actions: {
    create() {
      const title = this.get('title');
      const record = this.store.createRecord('post', {
        title
      });
      return record.save();
    }
  }
});

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()
});

serializers.post.js

import DS from 'ember-data';

export default DS.RESTSerializer.extend({
  primaryKey: 'non-id-primary-key',
  
  serialize() {
    alert('serialize called');
    return this._super(...arguments);
  },
  
  normalizeCreateRecordResponse: function(store, modelClass, payload) {
    alert('omg payload' + payload);
    console.log('payload', payload);
    debugger;
    return this._super(...arguments);
  }
});

templates.application.hbs

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

<ul>
{{#each allPosts as |post|}}
  <li>{{post.id}} - {{post.title}} - {{post.isNew}}</li>
{{/each}}
</ul>

title: {{input value=title}}
<button {{action "create"}}>Create Record</button>

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2",
    "mockjax": "https://cdnjs.cloudflare.com/ajax/libs/jquery-mockjax/1.6.2/jquery.mockjax.js"
  },
  "addons": {}
}