public IActionResult Update(int orderId, [FromBody] Order order)
        {
            if (order == null)
            {
                if (_ordersService.ClearItems(orderId))
                {
                    return(Ok(_ordersService.Get(orderId)));
                }
            }
            if (_ordersService.Update(orderId, order))
            {
                return(Ok(_ordersService.Get(orderId)));
            }

            return(NotFound());
        }