public async Task <Result <int> > Handle(CreateProductCommand command, CancellationToken cancellationToken)
{
var product = _mapper.Map <Domain.Entities.Products.Product>(command);
if (await _productRepository.DoesBarCodeExist(product.Barcode))
{
return(Result <int> .Failure($"Product with Barcode {product.Barcode} already exists."));
}
var result = await _productRepository.AddAsync(product);
return(Result <int> .Success(result.Id));
}