sessionId property
A 64-bit number represented by 16 hex digits. It is assigned at login and must be kept for the duration of the session. A program should only use one FRITZ!Box should only use one session ID for each FRITZ!Box, as the number of sessions for a FRITZ!Box is limited. FRITZ!Box is limited.
The session ID has a validity of 60 minutes after assignment. The validity period is automatically extended when the FRITZ!Box is actively accessed.
The session ID 0 (000000000000) is always invalid.
Implementation
String? sessionId;