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Universal API Rate Limiting Decorator Pattern

rate-limiting decorators performance security
Prompt
Implement a decorator-based rate limiting system for JavaScript that can be applied to any async function or API method, supporting multiple rate limit strategies (sliding window, token bucket, leaky bucket). The implementation should work across different environments (browser, Node.js, serverless) and provide configurable limit thresholds, priority queuing, and distributed rate tracking using Redis or similar persistent storage. Include comprehensive metrics and optional circuit-breaking capabilities.
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JavaScript
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Mar 1, 2026

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Use Cases
  • Preventing abuse of public APIs by limiting requests.
  • Ensuring fair usage among different user tiers.
  • Maintaining system performance during peak loads.
Tips for Best Results
  • Define clear rate limits based on user needs.
  • Provide users with feedback on rate limit status.
  • Monitor usage patterns to adjust limits as needed.

Frequently Asked Questions

What is a Universal API Rate Limiting Decorator Pattern?
It controls the number of API requests to prevent overload.
How does it improve API performance?
By managing traffic, it ensures fair usage and system stability.
Is it easy to implement?
Yes, it can be integrated with minimal changes to existing APIs.
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