App\Http\Controllers\BaseAPIController::fileReponse PHP Method

    protected function fileReponse($name, $data)
    {
        header('Content-Type: application/pdf');
        header('Content-Length: ' . strlen($data));
        header('Content-disposition: attachment; filename="' . $name . '"');
        header('Cache-Control: public, must-revalidate, max-age=0');
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        return $data;
    }