Hi @kmccurley,
Thanks for sharing the details you’ve found so far. Could you confirm that the data that goes through the submission wizard that you’re referring to is on OJS 3.4?
I will have a look at how the process for submitting the application/json for the submissions/<subid>/publications/<pubid> works, but one place to start looking may be in the API controller where it converts the string input to the object schema (which is here for the Publication object. The validation happens based on the rules in the schema files for the most part.
As for generating an API client, we’ve never directly pursued this, but we do use redoc for displaying the API documentation as described in the docs repository so there may be some redoc specific things that are getting in the way of the swagger codegen you mentioned.
Regards,
Erik
PKP Team