public async Task <StockViewModel> ExecAsync(StockDto stockDto) { var stock = new Stock { Description = stockDto.Description, Quantity = stockDto.Quantity, ProductId = stockDto.ProductId }; var success = await _stockManager.CreateStock(stock) > 0; if (!success) { return(null); } return(new StockViewModel { Id = stock.Id, Description = stock.Description, Quantity = stock.Quantity }); }