Access token and event registration
To read the catalog of an event that requires registration, or to reach your own schedule, you need both of the following. Each fails in its own way.
-
A valid access token. A missing, expired, or malformed token produces
401. TheWWW-Authenticateheader names where to sign in. -
Registration for that event. A valid token from someone not registered for the event produces
403. One token covers every event you are registered for. The same token can succeed for one event and return403for another.
Registration happens on the event's own site. You cannot fix a 403 by signing in again.