Flask session lost data

Question

I am testing a simple app to store data in session. I created the check to avoid resetting, but still getting data lost. Here is my code of app.py:

from fl         


        

Answer 1

Please consider the following:

1. This is the most important point, for flask session to work, you need to configure a SECRET_KEY, like below:

app.config["SECRET_KEY"] = 'YourSecretKey@123'

2. I don't know, I just figured it out that you don't need the following line and it's corresponding import (it started working for me when I commented out this part, may be Flask-Session and Flask's inbuilt session are messing up with each other):

Session(app)

from flask_session import Session

3. Don't directly update the session, if it's an array, do like below:

note = request.form.get("note")
temp = session['notes']
temp.append(note)
session['notes'] = temp

I hope, it will work for you.