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production
very-high
Uptime 99.99%
25,000 req/s

Microservices API Gateway

High-performance API gateway with intelligent routing, rate limiting, circuit breaking, and real-time observability. Designed as the single entry point for a microservices ecosystem.

Go
Redis
Prometheus
Grafana
Docker
Kubernetes
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Overview

A custom-built API gateway designed to handle high-throughput traffic for microservices architectures. Features intelligent request routing, adaptive rate limiting, circuit breaker patterns, and comprehensive observability.

Architecture

  • Routing Engine: Trie-based path matching with weighted load balancing
  • Rate Limiter: Token bucket algorithm with Redis-backed distributed state
  • Circuit Breaker: Configurable failure detection with automatic recovery
  • Observability: Prometheus metrics, distributed tracing, and Grafana dashboards

Key Achievements

  • Handles 25,000+ requests/sec with p99 latency under 5ms
  • Zero-downtime deployments via Kubernetes rolling updates
  • Reduced service-to-service latency by 60% through connection pooling
  • 99.99% uptime over 12 months of production operation