public void AddMessageInChatroom(int id, [FromBody] Message message) { message.SentDate = DateTime.Now; message.ChatroomID = id; try { service.AddMessageInChatroom(message); } catch (ArgumentNullException) { throw new HttpResponseException(HttpStatusCode.NotFound); } catch (InvalidOperationException) { throw new HttpResponseException(HttpStatusCode.NotAcceptable); } }