public async Task <Unit> Handle(UpdateProductCommand request, CancellationToken cancellationToken)
{
var original = await productRepository.GetAsync(request.Id); // -> Get entity from db.
if (original == null) // -> If it is null, notificate and stop to avoid null exception.
{
await bus.InvokeDomainNotificationAsync("Not found.");
return(Unit.Value);
}
request
.IsNullEmptyOrWhitespace(e => e.Name, async() => await bus.InvokeDomainNotificationAsync("Invalid name."))
.Is(e => e.Price <= 0, async() => await bus.InvokeDomainNotificationAsync("Invalid price."));
original.UpdateInfo(request.Name, request.Description, request.Price);
await productRepository.UpdateAsync(original);
Commit();
await bus.InvokeAsync(new UpdateProductEvent(original.Id, original.Name, original.Description, original.Price));
return(Unit.Value);
}
