reset_migrations | Django migrations with just one press | Data Migration library

In your serializer you have author in the list of fields. Since it's a ModelSerializer, drf is picking up details for that field from the model, and in the model author is null = False by default, hence drf is making it a required field, since it can't be null. But since you want the author to be automatically the user who is making the request, you don't need that field to be editable. Hence make it a read only field in your serializer like this: