onSessionUpdated property
Emits the refreshed session every time an expired access token is renewed, so the owner of the credentials can re-persist them.
A fromSession instance refreshes automatically, and session then
holds the new credentials — but nothing otherwise tells the caller to
read it back. Because refresh tokens are single-use, persisting the
session originally passed in would store a spent refresh token, and the
next run would restore a session that can no longer be refreshed.
Silent on OAuth-backed instances; use
oAuthSessionManager.onSessionUpdated for those.
Implementation
Stream<core.Session> get onSessionUpdated;