public async Task <ActionResult> createOrder(OrderDto model) { double totalAmount = 0; foreach (var item in model.OrderDetail) { if (item.Quantity <= 0 || item.Quantity > 5) { return(BadRequest()); } var product = _productService.GetProduct(item.ProductId); if (product == null) { return(BadRequest()); } totalAmount += product.CurrentPrice * item.Quantity; } var order = model.Adapt <Order>(); order.TotalAmount = totalAmount; order.Status = OrderCurrentStatus.received.ToString(); _orderService.CreateOrder(order); foreach (var item in model.OrderDetail) { var orderDetail = item.Adapt <OrderDetail>(); orderDetail.OrderId = order.Id; _detailService.CreateOrderDetail(orderDetail); } _orderService.SaveChanges(); return(Ok()); }