Session

Product overview (EFU metric): Features → Session.

sessionId

On init, the SDK:

1. creates a random sessionId (UUID)
2. saves it in localStorage under retracekit_session_id
3. reuses the same id on the next page load in that browser

Every error includes sessionId automatically.

Pings

Lightweight POST /api/sessions when:

• init runs with a valid API key
• setUser is called while capture is enabled

Each ping carries sessionId and, if set, the current user id.