JWT vs Session Cookies

Compare JWT tokens and session cookies for authentication. Understand security, scalability, and implementation tradeoffs.

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JWT tokens and session cookies are two popular approaches to authentication, each with distinct advantages.

JWT (JSON Web Tokens)

Stateless, self-contained tokens. Pros: Scalable, works across domains, no server session storage. Cons: Larger payload, harder to revoke, must handle expiration.

Session Cookies

Server-side session storage with cookie identifier. Pros: Easy revocation, smaller payload, battle-tested. Cons: Server storage required, scaling complexity.

Making the Choice

JWT for: APIs, microservices, mobile apps, SPAs. Sessions for: Traditional web apps, when you need easy session revocation.

Summary

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