public HttpResponseMessage UpdateHandle(HandleUpdateRequest model)
        {
            if (!ModelState.IsValid)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            }

            string userId = _userService.GetCurrentUserId();

            _userService.UpdateHandle(model, userId);

            SuccessResponse response = new SuccessResponse();

            return Request.CreateResponse(HttpStatusCode.OK, response);
        }
        public void UpdateHandle(HandleUpdateRequest model, string userId)
        {
            DataProvider.ExecuteNonQuery(GetConnection, "dbo.Users_UpdateHandle"
               , inputParamMapper: delegate (SqlParameterCollection paramCollection)
               {
                   paramCollection.AddWithValue("@Handle", model.Handle);
                   paramCollection.AddWithValue("@Avatar", model.Avatar);
                   paramCollection.AddWithValue("@FirstName", model.FirstName);
                   paramCollection.AddWithValue("@LastName", model.LastName);
                   paramCollection.AddWithValue("@UserId", userId);
               }

               , returnParameters: delegate (SqlParameterCollection param)
               {
               }
               );
        }