public IActionResult Post(PlaceOrderRequest request)
        {
            if (!PotentialOrder.CanBePlaced(request.customerId, request.productCode, request.quantity))
            {
                return(BadRequest(PotentialOrder.GetPlacingErrors(request.customerId, request.productCode, request.quantity)));
            }

            _service.PlaceOrder(request.customerId, request.productCode, request.quantity);

            return(Ok());
        }