mw.user.sessionId() should work for our purposes.
|Resolved||Catrope||T170214 Metrics: Get numbers for New Filters usage (and compare to baseline)|
|Resolved||• jmatazzoni||T158447 ERI Metrics: Establish baseline for RC page tool usage prior to beta release|
|Resolved||Catrope||T160928 Add session ID to filter usage and highlight usage data|
These session IDs are not available on the server, but since both the (filter) logging and the beta feature itself are only for logged-in users right now, I'll just log the user ID instead. We can then derive sessions from user IDs and gaps in timestamps.