I recently work with Commercetools and I have a question.
How can we add one more ProductType to Product? I've heard it can be implemented by attribute reference. So, I'm trying to do this way:
final Reference<ProductType> productTypeReference = ProductType.referenceOfId(request.getProductTypeId()).toReference();
final AttributeDraft draft = AttributeDraft.of(request.getAttributeName(), productTypeReference);
final SetAttributeInAllVariants attribute = SetAttributeInAllVariants.of(draft);
return ProductUpdateCommand.of(product, attribute);
But it does not work? How it can be implemented?
While referencing a productType is possible, it may be more advisable to create a single productType that contains all of the attributes you wish to have.
You can reference a prouductType which is outlined here: https://docs.commercetools.com/http-api-types#references
However, to return the data from the reference you'll need to expand the reference which is outlined here: https://docs.commercetools.com/http-api#reference-expansion
Does this help?
Best Regards, Michael