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Reactjs – How to Automatically Logout a User When JWT Cookie Expires in React?

The Problem:
I am unsure of how to detect when the JWT token expires and how to clear the user data (e.g., localStorage, Redux store automatically when the token is expired.

How can I automatically log out a user when the JWT token in a cookie expires?

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2

Answers


  1. 0

    You can store the expiry date both in the browser cookie and the server session. So the browser would not even send the request if the token is known to be invalid and the server will log out if it receives a request from a session that is known to have expired.

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  2. 0

    1. Decode the JWT: Use a library like jwt-decode to extract the expiration timestamp from the token.

    2. Setup hook: Create a hook to compare the current time with the expiration time and use a setInterval in a useEffect to periodically check the token’s expiration..

    3. Logout: Automatically logout and return user to login page as your app requires.

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