Release : 15.7, 15.7.1, 15.8
Component :
Currently REST API for resource is only supported to do GET. Check out the documentation here:
There are plans around this to add POST and PATCH for the resource APIs
We don't have a specific timeline as of yet though. If you want to vote for this please join our Product Management Office Hours as described here:
https://knowledge.broadcom.com/external/article?articleId=143934
In the meantime you could try using XOG or a different custom update for this change.