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Implement Distributed Rate Limiting for Microservices API

microservices rate-limiting distributed systems Redis TypeScript
Prompt
Design a distributed rate limiting middleware for a Node.js microservices architecture using Redis as a shared counter. The solution must support per-user and per-endpoint rate limiting, with configurable window sizes (1 minute, 5 minutes, 1 hour). Implement exponential backoff for clients exceeding limits and generate standardized error responses. Include TypeScript type definitions and handle edge cases like distributed race conditions.
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JavaScript
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Feb 28, 2026

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Use Cases
  • Preventing API abuse in high-traffic applications.
  • Ensuring fair usage among different microservices.
  • Managing user request limits in a multi-tenant environment.
Tips for Best Results
  • Set appropriate limits based on user roles.
  • Monitor usage patterns to adjust limits dynamically.
  • Implement logging for better analysis of rate limits.

Frequently Asked Questions

What is distributed rate limiting?
It's a technique to control the rate of requests across multiple services.
Why is it important for microservices?
It prevents overload and ensures fair resource usage among services.
How can I implement it?
You can use tools like Redis or API gateways to manage rate limits.
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