Feature/chat signalr

Tsi1.Api/Tsi1.Api/SignalR/ChatHub.cs

 using AutoMapper;
+using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.SignalR;
 using Microsoft.EntityFrameworkCore;
@@ -14,6 +15,7 @@ using Tsi1.DataLayer.Entities;
 
 namespace Tsi1.Api.SignalR
 {
+    [Authorize]
     public class ChatHub : Hub
     {
         private readonly IMapper _mapper;
@@ -29,7 +31,7 @@ namespace Tsi1.Api.SignalR
             _presenceHub = presenceHub;
             _mapper = mapper;
             _messageService = messageService;
-            _chatService = chatService
+            _chatService = chatService;
 
         }