I'm learning flask and am trying to associate some randomly generated data with each session. I use the approach from this answer to set session.permanent to False, but closing the browser, then reopening it at going back to the page still displays the same code.
MWE:
from flask import Flask, session
import numpy as np
app = Flask(__name__)
app.secret_key = "supersecretkey"
@app.before_request
def make_session_permanent():
session.permanent = False
@app.route('/')
def index():
if 'id' not in session:
random_id = "".join(np.random.choice(list("abcdefg123"), 16))
session["id"] = random_id
return session['id']
if __name__ == '__main__':
app.run(debug=True)
Update: Based on this answer someone recommended to use socketio to notice disconnects. This also makes no difference, i.e. closing the browser, reopening it, and going to 127.0.0.1:5000 gives the same number as before closing. An updated MWE using this is below:
from flask import Flask, session
from flask_socketio import SocketIO
import numpy as np
app = Flask(__name__)
app.secret_key = "supersecretkey"
@app.before_request
def make_session_permanent():
session.permanent = False
@app.route('/')
def index():
if 'id' not in session:
random_id = "".join(np.random.choice(list("abcdefg123"), 16))
session["id"] = random_id
return session['id']
socketio = SocketIO(app)
@socketio.on('disconnect')
def disconnect_user():
session.pop('id', None)
if __name__ == '__main__':
app.run(debug=True)
