Philippe,
Aren't subtypes already supported by RESTXQ? I was talking about the parameters of a media type which is the "type=entry" part in the following media type:
thanks for the details, and: yes, of course I wanted to refer to the media type's parameters. -- I guess you are busy enough with many other issues, but if you find some free time and want to speed up things, you are invited to have a look into our RESTXQ implementation:
https://github.com/BaseXdb/basex-api/tree/master/src/main/java/org/basex/htt...
Best, Christian