How does JWT Authorization works

When a user logs into the application, they provide their username and password to the backend. The backend verifies these credentials and, if they are valid, generates a JSON Web Token (JWT) containing information such as the user's ID and roles. This JWT is signed with a secret key unique to the server and sent back to the client. The client securely stores the JWT, commonly in browser storage or as an HTTP-only cookie. When the user attempts to access protected resources or perform specific tasks, the client sends the JWT with the request to the backend. The backend then verifies the integrity of the token by checking its signature. If the signature is valid, the backend extracts the user information from the JWT payload and processes the request accordingly, ensuring that the user has the necessary permissions based on their roles and authorization level. Additionally, JWTs often have an expiration time, after which the token becomes invalid, prompting the user to re-authenticate for continued access

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Book Review - "A History of Western Philosophy" – A Personal Review and Reflection

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