What techniques can I use to enforce per-user rate limits in a multi-instance Spring Boot app

Question

Can you name the techniques i can use to enforce per-user rate limits in a multi-instance spring boot app?

Answer 1

To enforce per-user rate limits in a multi-instance Spring Boot app, use a distributed rate-limiting mechanism like Redis. Here are the key strategies you can refer to:

• Distributed Counter with Redis: Track requests per user with Redis keys, expiring after the rate limit window.
• Use Filters to Apply the Rate Limiter: Integrate the rate limiter into Spring's request lifecycle.
• Implement Token Bucket for Smoothing: Optionally, use a token bucket algorithm for even request distribution.

Here is the code snippet for the above steps:

Hence, the above strategies can be used to enforce per-user rate limits in a multi-instance Spring Boot app.