public WaitingRoomResponse AddChatPlayer([FromBody] AddChatPlayerRequest request)
        {
            WaitingRoom waitingRoom = WaitingRoom.GetWaitingRoom();

            waitingRoom.AddPlayer(request);
            waitingRoom.SaveWaitingRoom();
            return(new WaitingRoomResponse()
            {
                WaitingRoom = waitingRoom
            });
        }