public async Task <Order> CreateOrderAsync(string buyerEmail, int deliveryMethodId, string basketId, Address shippingAddress) { //get basket from repo var basket = await _basketRepo.GetBasketAsync(basketId); //get items from Product Respo var items = new List <OrderItem>(); foreach (var item in basket.Items) { var productItem = await _unitofWork.Repsository <Product>().GetByIdAsync(item.Id); var itemOrdered = new ProductItemOrdered(productItem.Id, productItem.Name, productItem.PictureUrl); var orderItem = new OrderItem(itemOrdered, productItem.Price, item.Quantity); items.Add(orderItem); } //get delvierymethod form repo var deliveryMethod = await _unitofWork.Repsository <DeliveryMethod>().GetByIdAsync(deliveryMethodId); //calc subtotoal var subTotal = items.Sum(item => item.Price * item.Qunaity); //create order var order = new Order(buyerEmail, shippingAddress, deliveryMethod, items, subTotal); _unitofWork.Repsository <Order>().Add(order); var result = await _unitofWork.Complete(); if (result <= 0) { return(null); } //delete basket await _basketRepo.DeleteBasketAsync(basketId); return(order); }