Generating Authentication Tokens

The video tutorial explains how to generate JSON Web Tokens (JWT) for user authentication during login and signup processes. It covers creating reusable functions for token generation, implementing these functions in the user model, and testing the setup using Postman. The tutorial also discusses storing tokens in the database to manage user sessions across multiple devices and addresses the issue of user logout by tracking tokens.

What is the purpose of generating a JSON Web Token (JWT) in the context of user authentication?

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Describe the process of how a user receives their JWT after signing up or logging in.

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Explain how the function for generating a JWT is structured and why it is created separately from the request handlers.

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Explain the role of the 'generate auth token' method in the user instance.

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What are the implications of not tracking JWTs on the server?

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How does the server ensure that a user can log out and invalidate their JWT?

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How does the server handle the generation and storage of tokens for multiple devices?

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What modifications are made to the user model to accommodate the storage of tokens?

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What is the significance of the 'tokens' array in the user document?

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What steps are involved in modifying the sign-up request to also return a JWT?

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