How to dynamically get current user list by using session?

Hi Miguel, I’m a junior developer, I’m sorry to make you spend some time on this question…

• I’m using Flask-SocketIO to try to build a chat server without using any database or user list stored in the back-end.
• I just simply store the username into session and authenticate the username info by Flask-Login, so that I can use SocketIO to get the current_user.

So here is the question:

How could I get the current user list by dynamically retrieving the sessions from different users, in order to let every user who has logged in see the list?

Thank you for reading this, I would appreciate it if you could give me some handy tips 😃😃😃

[miguelgrinberg]

Example:

@socketio.on('connect')
def user_connect():
    session['thread'] = socketio.start_background_task(background_thread, session['user'])

This sends the user as an argument to your thread function (you’ll have to add the argument on your thread function, obviously). It also stores the thread in the user session, so that you can then access it when you need to stop it.

[shisaq]

It works! Thank you for your help! I feel extremely excited now! It’s really a nice idea to store the thread into the session, I never thought about it before! @miguelgrinberg