private JsonResult CallNext(int id, QueueType qType)
 {
     Queue q = _queueService.CallNext(id, qType);
     if (!(q is null)) _client.CallNext(q);
     return new JsonResult()
     {
         Data = q is null ? new Queue() : q,
         JsonRequestBehavior=JsonRequestBehavior.AllowGet
     };
 }