Shut down the session after closing the browser tab by the user #8545
Description
Checklist
- I have searched the existing issues for similar feature requests.
- I added a descriptive title and summary to this issue.
Summary
I want to implement the mechanism to detect the user exit after closing the tab and shut down the session on the backend side. I used the solution provided in the streamlit discussion - https://discuss.streamlit.io/t/detecting-user-exit-browser-tab-closed-session-end/62066/2
My code snippet is the next -
import threading
from streamlit.runtime.scriptrunner import add_script_run_ctx
from streamlit.runtime.scriptrunner.script_run_context import get_script_run_ctx
from streamlit.runtime import get_instance
def heart_beat():
"""
Heartbeat function to track whether the session is alive
"""
thread = threading.Timer(interval=2, function=heart_beat)
# insert context to the current thread, needed for
# getting session specific attributes like st.session_state
add_script_run_ctx(thread)
# context is required to get session_id of the calling
# thread (which would be the script thread)
ctx = get_script_run_ctx()
# this is the main runtime, contains all the sessions
runtime = get_instance()
if runtime.is_active_session(session_id=ctx.session_id):
thread.start()
else:
return
if __name__ == "__main__":
heart_beat()
Is it possible to shut down the session on the backend side?
Why?
It's important to have more controlled behavior, as our application will potentially interact with multiple users.
How?
No response
Additional Context
No response