Custom Middleware: Implement custom middleware in your microservices to reject?

Short answer: requests that exceed the rate limit and respond with appropriate HTTP status codes (e.g., 429 Too Many Requests). Example: The API Gateway might allow up to 100 requests per minute from a single IP, and after the limit is reached, it responds with a 429 status until the rate limit resets. Data Management in Microservices

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.