#429 Error Code

Most developers panic when they see HTTP 429 error. But this error actually tells you something important about your system. HTTP Status Code 429 = Too Many Requests It means the server is receiving too many requests in a short time and is protecting itself from overload. This often happens when: • A link suddenly goes viral and thousands of users click it • Bots or scripts hit an API endpoint repeatedly • The backend doesn’t have proper rate limiting configured How a backend engineer should fix it: ✅ Implement API Rate Limiting (Token Bucket / Leaky Bucket) ✅ Add caching with CDN like Cloudflare or Akamai ✅ Use exponential backoff retry strategy on the client ✅ Queue high traffic requests with tools like Apache Kafka or RabbitMQ ✅ Scale backend services behind a load balancer So if you ever see 429 Too Many Requests, the real issue isn’t the link — it’s traffic management and system design. Save this for your next backend or system design interview. Follow for more software engineering, backend development, API design, and system design interview tips. #systemdesign #backenddevelopment #softwareengineering #codinginterview #api programmingtips

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