[Question] How to ensure that a user is waiting or not on a page ?

[s-celles]

Question

Hello,

In a Flet web app, I have some users who can wait in a "room" (a webpage) until a creator starts an activity in this room (a quiz for example).
I'm looking for a way to know if a user is still waiting in the room or have left the room.
my question may be quite vague but to be honest I don't really know how to tackle that.
I can get this kind of information if client explicitly click on a button to leave the room but I don't know how to manage that if for example he closes his browser window / tab.
I think the client should send a kind of heartbeat signal to the server but I don't see how to manage that with Flet.
Any suggestion will be nice.

Kind regards

Code sample

No response

Error message

No response

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• I have searched for answers to my question both in the issues and in previous discussions.

[s-celles]

Detecting disconnection seems to be a good solution.
https://flet.dev/docs/controls/page/#on_disconnect