public ActionResult <StockLevel> Add(int productId, [FromBody] AddStocksCommand command)
{
var quantityInStock = _stockService.AddStock(productId, command.Amount);
var stockLevel = new StockLevel(quantityInStock);
return(Ok(stockLevel));
}
public async Task HandleAsync(AddStocksCommand command, CancellationToken cancellationToken)
{
using (var context = dbContextFactory.CreateDbContext())
{
var productIds = command.Items.Select(i => i.ProductId).ToList();
var productLookup = await GetProductLookupAsync(context, productIds, cancellationToken).ConfigureAwait(false);
requestValidator.ValidateAndThrow(command, productLookup);
// This is for idempotence. We check only the TransactionId because we assume that if stocks for one product in a transaction is added then so are the others.
var stocksAlreadyAdded = await context.ProductStockAddedEvents.AnyAsync(evt => evt.TransactionId == command.TransactionId, cancellationToken).ConfigureAwait(false);
if (stocksAlreadyAdded)
{
return;
}
foreach (var addedStock in command.Items)
{
context.ProductStockAddedEvents.Add(new ProductStockAddedEvent
{
ProductId = addedStock.ProductId,
Quantity = addedStock.Quantity,
TransactionId = command.TransactionId
});
}
await context.SaveChangesAsync(cancellationToken).ConfigureAwait(false);
}
}
public ActionResult <StockLevel> Add(
int productId,
[FromBody] AddStocksCommand command,
[FromServices] AddStocks useCase
)
{
var product = useCase.Handle(productId, command.Amount);
var stockLevel = new StockLevel(product.QuantityInStock);
return(Ok(stockLevel));
}
public ActionResult <StockLevel> Add(
int productId,
[FromBody] AddStocksCommand command,
[FromServices] AddStocks useCase
)
{
var product = useCase.Handle(productId, command.Amount);
var stockLevel = _mappingService.Map <Product, StockLevel>(product);
return(Ok(stockLevel));
}
