Perspective Session Cleanup

[Matthew_Kuss]

I have some cleanup code that runs when a perspective user logs out (via a log-out button), but this code doesn't execute on a session closes unexpectedly. I'd like to instead run this code on the gateway when a session ends or is lost. Is there an easy way to trigger this script?

My initial though is to setup a session message and let the gateway run the code if it misses X number of messages from a given session. That seems overly complex for what I'm trying to do, so I'm hoping that there is an easier event driven in way that I don't know about.

[Felipe_CRM]

Perspective session messages are sent from the gateway (any script that could send one has to run on the gateway in Perspective) so it wouldn't work as a heartbeat to detect browser connection loss.

The session shutdown event does eventually detect disconnection, but it takes time:

Understanding perspective session events

Closing a browser window doesn’t kill your session - it remains alive for 120 (maybe 60?) seconds by default, which can be configured here, in the Session Timeout section: [03%20AM] So you won’t see the “end_session” message sent from the Perspective Session for at least one minute, maybe two. I’ll look into the device_id being empty, but I just tested it myself and it worked as expected…

More discussion on the topic, including a link to a relevant feature request:

Detecting lost connection to the gateway

We are testing how perspective clients react to a communication loss to the gateway due to a cable break or the gateway loosing power. We observe that it takes 2,5 minutes before the client displays the "No Connection to Gateway" banner. [image] Looking into the browser console, we see that after approximately 2 minutes and 15 seconds we get the message store.Channel: Disconnecting websocket with message: "Idle time reached." After 15 more seconds we get the message store.Channel: Websocket c…

[djs]

Any reason a session shutdown event would not work?

Perspective Session Event Scripts | Ignition User Manual

It would not detect the browser closing right away (rather after the session timeout), but it would run once the session properly ends.

[Matthew_Kuss]

Thank you for the advice. I'll try the Session Event and see if that fixes my problem. I forgot it runs on the Gateway in perspective therefore it should still run.