public function register(Request $request)
{
    $this->validator($request->all())->validate();

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

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

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

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

namespace AppHttpControllersAuth;

use AppUser;
use AppMailRegistrationSuccess;
use IlluminateSupportFacadesMail;
use AppHttpControllersController;
use IlluminateSupportFacadesValidator;
use IlluminateFoundationAuthRegistersUsers;
use IlluminateHttpRequest;
use IlluminateAuthEventsRegistered;

class RegisterController extends Controller
{

    use RegistersUsers;

    protected $redirectTo = '/cp';

    public function showRegistrationForm()
    {
        return view('auth.register', ['no_padding' => true]);
    }

    public function register(Request $request)
    {
        $this->validator($request->all())->validate();

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

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

    public function __construct()
    {
        $this->middleware('guest');
    }

    protected function registered(Request $request, $user)
    {
        return view('info', [
            'breadcrumbs' => [
                                [
                                    'name' => 'Регистрация',
                                    'href' => route('register')
                                ],
                                [
                                    'name' => 'Завершение',
                                    'href' => '#',
                                    'current' => true
                                ]
            ],
            'page' => [
                'title' => 'Завершение регистрации',
                'content' => 'Регистрация успешно завершена! На адрес '.$request->email.' отправлена информация с данными для входа. Если не видите письма - проверьте его в папке "Спам". Для повторной отправки письма запросите восстановление пароля на странице авторизации'
            ]
        ]);
    }

    protected function validator(array $data)
    {
        return Validator::make($data, [
            'first_name' => 'required|string|max:255',
            'last_name' => 'required|string|max:255',
            'email' => 'required|string|email|max:255|unique:users',
        ]);
    }

    protected function create(array $data)
    {
        $password = str_random(16);

        $user_data = [
            'first_name' => $data['first_name'],
            'last_name' => $data['last_name'],
            'email' => $data['email'],
            'generate_pass' => $password,
            'password' => bcrypt($password),
        ];

        $create_user = User::create($user_data);
        if($create_user){
            Mail::to($create_user)->send(new RegistrationSuccess($user_data));
            unset($user_data);
        }
        else{
            dd('error');
        }
    }

}