Optional
clientThe WebID of the app, or a "Public app" WebID if the app does not provide its own. undefined until the session is logged in and the app WebID has been verified.
Optional
expirationUNIX timestamp (number of milliseconds since Jan 1st 1970) representing the time until which this session is valid.
'true' if the session is currently logged into an associated identity provider.
A unique identifier for the session.
Optional
webThe WebID if the user is logged into the session, and undefined if not.
Defines the data that should be persisted for each session. This interface is exposed as part of our public API.