webagg backend in web application server

The nascent 1.4.x code is working fine for me to fire up my
interactive graphs served by a Tornado server. I'm interested in
providing an interface via a web application server like Django
though. I've only begun to look at the webagg backend code, but if I
read the comments correctly at the top of the files, it would seem
that I need to create a backend_webdjango.py module which relies on
the backend_webagg_core module for the heavy lifting, and interfaces
with the Django environment. Is this about correct? Has anyone
implemented a proof-of-concept of matplotlib running inside any web
application server?