private function checkMethodExist(string $method):int
    {
        if (in_array($method, $this->methodsReq)) {
            return (1);
        } else {
            new Server500(new \ArrayObject(array("explain" => "Unknown method $method for Allowed method request",
                "solution" => "Allowed methods request must be ".json_encode($this->methodsReq))));
        }
        return (0);
    }