Represents the lifetime metadata associated with a user session.
The properties use short keys to minimize cookie and storage size, since this structure may be serialized as part of session data.
All timestamps are expressed as Unix epoch time (seconds).
| Property | Type | Description |
|---|---|---|
c | number | Session creation time. The moment the session was initially established. |
e? | number | Optional expiration time. |
u | number | Last updated time. Updated whenever the session is refreshed or extended (for example, during sliding expiration). |