extrafields in creation serializers

[smoky heron]

Hello. I am facing unpleasant issue with attempts to add extra fields to serializer in case when there is no such fields in its model.

So, SlugRelatedField is not suitable in this case seemingly because it's only works for output purposes

Besides this I rumminated on HyperLinkField

But it also failed

Could anyone help me to fix this problem?

It's personally for me very non standard and don't even have any clue how to do it.

[stone sinew]

You can try to use SerializerMethodField

https://www.django-rest-framework.org/api-guide/fields/#serializermethodfield

[shell lily]

Or look at the Writable Nested Serializers documentation as noted in other threads https://www.django-rest-framework.org/api-guide/relations/#writable-nested-serializers

[smoky heron]

Surely. I have already read it.

Thank you all