python 2.7 - Flask-Login - How to get Session ID

Question

Am doing a project with Flask, Gevent and web socket using flask development server environment. I used flask_login. Here

1. how can get i get the Unique Session ID for each connection?
2. I want to store the SessionID in the Database and delete it once client disconnects.

3. How to get total active connections

   from flask_login import * 
   login_manager = LoginManager()
   login_manager.setup_app(app)
   
   @app.route("/", methods=["GET", "POST"]) 
   def login():
       login_user([username], remember):    
   
   @app.route("/logout") 
   @login_required 
   def logout(): 
       logout_user() 
   

Answer 1

There is no session id.

Sessions in Flask are simply wrappers over cookies. What you save on it it's digitally signed and sent as a cookie to the client. When you make a request, that cookie is sent to your server and then verified and transformed in a Python object.

AFAIK, Flask-Login saves on the session the user ID.

To get total active connections, you can:

1. At login, generate an unique id and save it on the session (flask.session['uid'] = uuid.uuid4(), for example), then save it on your database.
2. At logout, delete that unique id from the session (del flask.session['uid']) and also from your database.
3. Retrieve the count of active sessions using your favourite method (ORM/Raw SQL)