Saurabh DantaniFull Stack Developer

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Backend10k+ QPS

RESTful API Gateway

High-performance API gateway with rate limiting, authentication, caching, and microservices architecture. Handles 10K+ requests per second with Redis caching and JWT-based auth. Built with clean modular architecture, rigorous automated testing, and comprehensive logging. Designed from the ground up for high reliability, security, and lightning-fast user interactions.

RESTful API Gateway - Full Stack Architecture & Implementation

The Challenge

Microservices ecosystem required centralized authentication, rate limiting, and traffic routing.

The Solution

Engineered high-throughput API gateway with Redis token-bucket rate limiting, JWT validation, and circuit breaker patterns.

The Impact

Handled 10,000+ QPS with sub-5ms routing overhead and 99.99% service availability.

Technologies & Tools

Node.jsExpressRedisJWTDocker

Key Engineering Challenges

1Preventing cascading failures across downstream microservices during traffic spikes

2Enforcing fine-grained API rate limits per API key and user tier

3Aggregating logs and metrics across distributed services

4Zero-downtime hot reloading of route configurations

Results & Measurable Outcomes

Maintained <5ms routing latency across all endpoints

Protected backend services from distributed brute-force attacks

Provided real-time telemetry dashboards with Prometheus and Grafana

Reduced overall microservices operational latency by 40%

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