Laravel Passport API Login after registration

RegistersUsers.php

<?php

namespace Illuminate\Foundation\Auth;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Auth\Events\Registered;

trait RegistersUsers
{
    use RedirectsUsers;

    /**
     * Show the application registration form.
     *
     * @return \Illuminate\Http\Response
     */
    public function showRegistrationForm()
    {
        return view('auth.register');
    }

    /**
     * Handle a registration request for the application.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function register(Request $request)
    {
        $this->validator($request->all())->validate();

        event(new Registered($user = $this->create($request->all())));

	    $data = $request->only('email','name','password');

	    $client = \Laravel\Passport\Client::find( 4)->first();

	    $request->request->add([
		    'grant_type'    => 'password',
		    'client_id'     => $client->id,
		    'client_secret' => $client->secret,
		    'username'      => $data['email'],
		    'password'      => $data['password'],
		    'scope'         => null,
	    ]);

	    // Fire off the internal request.
	    $proxy = Request::create(
		    'oauth/token',
		    'POST'
	    );

	    return \Route::dispatch($proxy);

        $this->guard()->login($user);

        return $this->registered($request, $user)
                        ?: redirect($this->redirectPath());
    }

    /**
     * Get the guard to be used during registration.
     *
     * @return \Illuminate\Contracts\Auth\StatefulGuard
     */
    protected function guard()
    {
        return Auth::guard();
    }

    /**
     * The user has been registered.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  mixed  $user
     * @return mixed
     */
    protected function registered(Request $request, $user)
    {
        //
    }
}