Set up registration FOSUserBundle with FOSRestBundle REST API

Question

Problem fixed, check my answer.

I'm building a registration endpoint on my Symfony2.7 rest api. I am using FosRestBundle and FosUserBundle

Here is the user model :

<?php

namespace AppBundle\Entity;

use FOS\UserBundle\Model\User as BaseUser;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="fos_user")
 */
class User extends BaseUser {

    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;






    public function __construct() {
        parent::__construct();
        // your own logic
    }

}

\ Here is the UserType form : \

class UserType extends AbstractType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('email', 'email')
            ->add('username', null)
            ->add('plainPassword', 'repeated', array(
                'type' => 'password',

                'first_options' => array('label' => 'password'),
                'second_options' => array('label' => 'password_confirmation'),

            ))
        ;
    }

    /**
     * @param OptionsResolverInterface $resolver
     */
    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'AppBundle\Entity\User',
            'csrf_protection'   => false,
        ));
    }

    /**
     * @return string
     */
    public function getName()
    {
        return 'user';
    }
}

And this the post user controller :

public function postUserAction(\Symfony\Component\HttpFoundation\Request $request) {
        $user = new \AppBundle\Entity\User();
        $form = $this->createForm(new \AppBundle\Form\UserType(), $user);
        $form->handleRequest($request);

        if ($form->isValid()) {
            $em = $this->getDoctrine()->getManager();
            $em->persist($user);
            $em->flush();


            $view = $this->view(array('token'=>$this->get("lexik_jwt_authentication.jwt_manager")->create($user)), Codes::HTTP_CREATED);

            return $this->handleView($view);

        }

        return array(
            'form' => $form,
        );
    }

The problem is that when i submit wrong information, or empty information, the server return a bad formated 500 error with doctrine / mysql details of null value for not null row in state of a json response with the list of bad formated entries.

Any idea on how to fix this behaviour ? How come the validation get by passed and

Answer 1

Ok after spending a lot of time reading the FOSUserBundle code, and particularly the registration controller and the form factory, i came up with a fully working solution.

Before doing anything don't forget to disable CSRF in your symfony2 configuration.

Here is the controller I use to register :

 public function postUserAction(\Symfony\Component\HttpFoundation\Request $request) {


        /** @var $formFactory \FOS\UserBundle\Form\Factory\FactoryInterface */
        $formFactory = $this->get('fos_user.registration.form.factory');
        /** @var $userManager \FOS\UserBundle\Model\UserManagerInterface */
        $userManager = $this->get('fos_user.user_manager');
        /** @var $dispatcher \Symfony\Component\EventDispatcher\EventDispatcherInterface */
        $dispatcher = $this->get('event_dispatcher');

        $user = $userManager->createUser();
        $user->setEnabled(true);

        $event = new \FOS\UserBundle\Event\GetResponseUserEvent($user, $request);
        $dispatcher->dispatch(\FOS\UserBundle\FOSUserEvents::REGISTRATION_INITIALIZE, $event);

        if (null !== $event->getResponse()) {
            return $event->getResponse();
        }

        $form = $formFactory->createForm();
        $form->setData($user);

        $form->handleRequest($request);

        if ($form->isValid()) {
            $event = new \FOS\UserBundle\Event\FormEvent($form, $request);
            $dispatcher->dispatch(\FOS\UserBundle\FOSUserEvents::REGISTRATION_SUCCESS, $event);

            $userManager->updateUser($user);

            if (null === $response = $event->getResponse()) {
                $url = $this->generateUrl('fos_user_registration_confirmed');
                $response = new \Symfony\Component\HttpFoundation\RedirectResponse($url);
            }

            $dispatcher->dispatch(\FOS\UserBundle\FOSUserEvents::REGISTRATION_COMPLETED, new \FOS\UserBundle\Event\FilterUserResponseEvent($user, $request, $response));

            $view = $this->view(array('token' => $this->get("lexik_jwt_authentication.jwt_manager")->create($user)), Codes::HTTP_CREATED);

            return $this->handleView($view);
        }

        $view = $this->view($form, Codes::HTTP_BAD_REQUEST);
        return $this->handleView($view);
    }

Now the tricky part was submiting the form using REST. The problem was that when I sent i JSON like this one :

{
        "email":"xxxxx@xxxx.com",
        "username":"xxx",
        "plainPassword":{
            "first":"xxx",
            "second":"xxx"
        }
    }

The API was responding like nothing was submited.

The solution is that Symfony2 is waiting for you to encapsulate your form data in the form name !

The question was "I didnt create this form so i dont know what is its name..". So i went again in the bundle code and found out that the form type was fos_user_registration and the getName function was returning fos_user_registration_form.

As a result i tried to submit my JSON this way :

{"fos_user_registration_form":{
        "email":"xxxxxx@xxxxxxx.com",
        "username":"xxxxxx",
        "plainPassword":{
            "first":"xxxxx",
            "second":"xxxxx"
        }
    }}

And voila! it worked. If you are struggling setting up your fosuserbundle with fosrestbundle and LexikJWTAuthenticationBundle just ask me i'll be glad to help.