python - Resetting the expiration time for a cookie in Flask

Question

I'm using the the Python web framework Flask. I use sessions in my app. For my app called main, I've got the setting main.permanent_session_lifetime = timedelta(days=5), so that a user will remain logged in for 5 days after logging in. But even an active user will be logged out after 5 days. I would like the expiration time to reset each time they visit the site, so you get logged out only after 5 days of inactivity. Most sites work this way. How do I do that with Flask?

Answer 1

You can renew the session to the client at each request using a @before_request handler.

Try the following:

@app.before_request
def func():
  session.modified = True