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How to use a session in Flask? |
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Answer» Flask-SESSION is a Flask extension that adds server-side session FUNCTIONALITY to your application. The Session is the period of time between when a CLIENT logs in and logs off of a server. The data that must be saved in the session is saved on the server in a temporary directory. We can utilize session objects in Flask whenever we need to SAVE a large quantity of data between queries. The session object can be used to set and obtain data, as demonstrated below - from flask import Flask, session app = Flask(__name__) @app.route('/use_session') def use_session() if 'song' not in session: session['songs'] = {'title': Perfect, 'singer': 'Ed Sheeran'} RETURN session.get('songs') @app.route('/delete_session') def delete_session() session.pop('song', None) return "removed song from session" |
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