I think you should be looking in
Phoenix.PubSub module. They are probably stored in a ets table, but I might be wrong.
I believe you’re correct, now to figure out how to access it from within a controller…
I’m looking for something similar to this as well. Curious if you ever found anything @zinclozenga?
I want to track some metrics of how many unique topics and how many total subscribers I have in my production system so I can report that to statsd and keep a history.
Perhaps using a Tracker?