public override async Task <AddItemIntoShoppingCartResponse> AddItemIntoShoppingCart(IAsyncStreamReader <AddItemIntoShoppingCartRequest> requestStream, ServerCallContext context)
{
while (await requestStream.MoveNext())
{
// Get sc if exist or not
// Check item if exist in sc or not
// if item exist +1 quantity
// if not exist add new item into sc
// check discount and set the item price
var shoppingCart = await _shoppingCartDbContext.ShoppingCart.FirstOrDefaultAsync(s => s.UserName == requestStream.Current.Username);
if (shoppingCart == null)
{
throw new RpcException(new Status(StatusCode.NotFound, $"ShoppingCart with UserName={requestStream.Current.Username} is not found."));
}
var newAddedCartItem = _mapper.Map <ShoppingCartItem>(requestStream.Current.NewCartItem);
var cartItem = shoppingCart.Items.FirstOrDefault(i => i.ProductId == newAddedCartItem.ProductId);
if (null != cartItem)
{
cartItem.Quantity++;
}
else
{
// GRPC CALL DISCOUNT SERVICE -- check discount and set the item price
var discount = await _discountService.GetDiscount(requestStream.Current.DiscountCode);
newAddedCartItem.Price -= discount.Amount;
shoppingCart.Items.Add(newAddedCartItem);
}
}
var insertCount = await _shoppingCartDbContext.SaveChangesAsync();
var response = new AddItemIntoShoppingCartResponse
{
Success = insertCount > 0,
InsertCount = insertCount
};
return(response);
}
public override async Task <AddItemIntoShoppingCartResponse> AddItemIntoShoppingCart(
IAsyncStreamReader <AddItemIntoShoppingCartRequest> requestStream,
ServerCallContext context)
{
await foreach (var item in requestStream.ReadAllAsync())
{
var shoppingCart = await _shoppingCartContext
.ShoppingCarts
.FirstOrDefaultAsync(r => r.UserName == item.Username);
if (shoppingCart == null)
{
throw new RpcException(new Status(StatusCode.NotFound, "There is no shoppingCart"));
}
var newAddedCartItem = _mapper.Map <ShoppingCartItem>(item.NewCartItem);
var cartItem = shoppingCart.Items
.FirstOrDefault(r => r.ProductId == newAddedCartItem.ProductId);
if (cartItem != null)
{
cartItem.Quantity++;
}
else
{
var discountPercent = await _discountService.GetDiscount(item.DiscountCode);
float discount = discountPercent.Amount / 100;
newAddedCartItem.Price *= discount;
shoppingCart.Items.Add(newAddedCartItem);
}
}
var insertCount = await _shoppingCartContext.SaveChangesAsync();
var response = new AddItemIntoShoppingCartResponse
{
Success = insertCount > 0,
InsertCount = insertCount
};
return(response);
}
public override async Task <AddItemToShoppingCartResponse> AddItemToShoppingCart(IAsyncStreamReader <AddItemToShoppingCartRequest> requestStream, ServerCallContext context)
{
while (await requestStream.MoveNext())
{
var shoppingCart = await _shoppingCartContext.ShoppingCart.FirstOrDefaultAsync(p => p.UserName == requestStream.Current.Username);
if (shoppingCart == null)
{
throw new RpcException(new Status(StatusCode.NotFound, $"ShoppingCart with UserName={requestStream.Current.Username}"));
}
var newAddedCartItem = _mapper.Map <ShoppingCartItem>(requestStream.Current.NewCartItem);
var cartItem = shoppingCart.Items.FirstOrDefault(p => p.ProductId == newAddedCartItem.ProductId);
if (cartItem != null)
{
cartItem.Quantity++;
}
else
{
var discount = await _discountService.GetDiscount(requestStream.Current.DiscountCode);
newAddedCartItem.Price -= discount.Amount;
shoppingCart.Items.Add(newAddedCartItem);
}
}
var insertCount = await _shoppingCartContext.SaveChangesAsync();
var response = new AddItemToShoppingCartResponse
{
InsertCount = insertCount,
Success = insertCount > 0
};
return(response);
}
