Stateless JWT authentication offers scalability but complicates session revocation and logout. This article explores a common solution: storing a hash of the JWT in Redis upon login, then checking it during each authentication request. When a user logs out, the hash is removed, effectively invalidating the token. This approach provides a balance between the benefits of stateless tokens and the need for server-side control. The article discusses implementation considerations, such as hash computation and Redis key design, and highlights trade-offs like storage overhead and performance. For developers building user-centric systems, this pattern is a valuable addition to their security toolkit, enabling features like forced logout and session management without abandoning JWT's advantages.
Learn a practical Redis-based pattern for revoking JWTs and handling logout in stateless authentication systems.