Flask – Sessions A session with each client is assigned a Session ID . The Session data is stored on top of cookies and the server signs them cryptographically. For this encryption, a Flask application needs a defined SECRET_KEY.
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Unlike cookies, Session (session) data is stored on the server. The session is the interval at which the client logs on to the server and logs out the server . The data that is required to be saved in the session is stored in a temporary directory on the server.
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