Rate Limiting

Prevent abuse and DDoS attacks by limiting requests per IP address.

Overview

Prevent abuse and DDoS attacks by limiting requests per IP address.

Code Example

if (requests[ip] > 100) {\n  res.writeHead(429);\n  return res.end("Too Many Requests");\n}

Web Development Context

In modern web development, understanding Rate Limiting is crucial. Node.js is widely used for building APIs, real-time applications, and microservices. Mastery of this concept allows you to build efficient, scalable, and secure backend systems.

Common Mistakes

• Blocking the event loop with heavy synchronous tasks.
• Exposing secrets in code instead of environment variables.
• Forgetting to handle promise rejections.

Next Steps

To solidify your understanding, review the related references and try out the practice challenges.