Semantic conventions for session
Status: Experimental
This document defines semantic conventions to apply to client-side applications when tracking sessions.
Session is defined as the period of time encompassing all activities performed by the application and the actions executed by the end user.
Consequently, a Session is represented as a collection of Logs, Events, and Spans emitted by the Client Application throughout the Session’s duration. Each Session is assigned a unique identifier, which is included as an attribute in the Logs, Events, and Spans generated during the Session’s lifecycle.
When a session reaches end of life, typically due to user inactivity or session timeout, a new session identifier will be assigned. The previous session identifier may be provided by the instrumentation so that telemetry backends can link the two sessions.
Attributes
| Attribute | Type | Description | Examples | Requirement Level | Stability |
|---|---|---|---|---|---|
session.id | string | A unique id to identify a session. | 00112233-4455-6677-8899-aabbccddeeff | Opt-In |  |
session.previous_id | string | The previous session.id for this user, when known. | 00112233-4455-6677-8899-aabbccddeeff | Opt-In | |