public UsersController(IUserChatAppService service)
 {
     this.service = service;
 }
 public ChatHub(IUserChatAppService userChatAppService, IMessageAppService messageAppService, ILogger <ChatHub> logger)
 {
     this.messageAppService  = messageAppService;
     this.userChatAppService = userChatAppService;
     this.logger             = logger;
 }