We currently don't have full support for websocket and from what I've read, it's not in the immediate list of enhancements. However, there are some ways you can monitor these calls, but you won't get all the details like a web request.
Here's a link to a few good postings about how we can monitor some of these calls through custom sensors and/or ADK.
Hope this helps!
Thanks a lot Jason, this is helpful.
For some reason, i don't have permission to access the second link you provided:
Do you mind pasting the contents in this post?
My apologies Zhixing. The second link was an internal post that only mentioned that it wasn't fully supported and not on the immediate list of features.
The link you are able to access has all the information you'll need to monitor the calls through the ADK or custom senors.