Redirect to login page after session expiry - Python Flask App

Question

I have a python flask app with login module implemented using extension python flask. In my login method, I have set below

def login():
   .......
   .......
   session.permanent = True
   app.permanent_session_lifetime = datetime.timedelta(minutes=3)
   ......
   ......

This code sets my session cookie to 3 minutes as expected.

What's happening right now is, after 3 minutes, the page is still active and sending GET requests and POST request even the session is expired. What I want is after session is expired the page to default to login page.

Does flask-login provides this functionality out of box? Any suggestion would be helpful

Thanks

Answer 1

Using flask-login, do this, it will automatically redirects to login page.

@app.before_request
def before_request():
     flask.session.permanent = True
     app.permanent_session_lifetime = datetime.timedelta(seconds=30)
     flask.session.modified = True