API & Backend
Rate Limiting with FastAPI and Redis: Token Bucket & Sliding Window Defense
Protect your AI API endpoints from DDoS attacks, scraping bots, and cost spikes with distributed Redis sliding window rate limiters.
3 min
Why In-Memory Rate Limiters Fail in Production
In Kubernetes multi-pod environments, traffic is distributed across different instances. Without a centralized Redis store, per-pod in-memory limiters fail to enforce consistent rate limits across clients.