5 Case studies when Redis is most appropriate.

Redis is one of the most widely used performance-enhancing tool. One can use it for various reasons, the most outstanding scenarios are illustrated below.

1. Caching.

   This is the most common and widely known reason for using Redis. It helps protect the database layer from overloading. Redis offers fast lookup times for cached data and can help improve application performance.

2. Session Store.

   User session in stateless servers is quite important. Redis allows user sessions to be shared among stateless servers. Redis provides a centralized place to store session data and makes it easy to scale out servers.

3. Distributed Lock.

   Redis is used in distributed locks to grant mutually exclusive access to shared resources. This prevents race conditions in distributed systems. Redis locks are easy to implement and automatically expire.

4. Counter and Rate Limiter.

   Redis can be used to track the like counts, view counts etc on Social media apps. Redis counters provide atomic increments/decrements. We also use Redis to enforce rate limits on our API endpoints. This helps prevent abuse.

5. Leaderboard.

   Sorted sets make it easy to implement gaming leaderboards in Redis. We can add, update, or remove users from the leaderboard and query ranges efficiently.

There are many features offered by Redis and those are just some of them. Please leave a comment of what scenario you used Redis. Thank you and see you on the next.