Gitamin\Http\Middleware\Authenticate::handle PHP Метод

    public function handle($request, Closure $next)
    {
        if ($this->auth->guest()) {
            if ($request->ajax() || $request->wantsJson()) {
                return response('Unauthorized.', 401);
            } else {
                $method = 'guest';
                if ($request->method() === 'POST') {
                    app('session')->put('url.intended', back_url());
                    $method = 'to';
                }
                return redirect()->{$method}('auth/login')->withInfo(trans('gitamin.login.auth_prompt'));
            }
        }
        return $next($request);
    }