API Gateway with Rate Limiting

A reverse-proxy API gateway that authenticates requests, applies per-client rate limits, routes to upstream services, and logs metrics.

Node.jsExpressRedisJWTDocker

How to build it — step by step

1
Proxy + routing: Route incoming requests to configured upstream services with path rules.
2
Auth: Validate API keys/JWTs and attach client identity to each request.
3
Rate limiting: Implement token-bucket/sliding-window limits per client in Redis.
4
Observability: Record latency, status codes, and throttle events; expose a metrics endpoint.

Add circuit-breaking that temporarily stops routing to an upstream that is failing, with automatic recovery probing.

API gateway patterns, rate-limiting algorithms, distributed counters, and resilience patterns.

Research · Networking · 8-10 months

Advanced · AI/ML · 6-8 weeks

Advanced · Systems · 12-16 weeks

Advanced · AI/ML · 10-12 weeks

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Last reviewed on June 13, 2026 by the AiTechWorlds Curriculum Team. Free to use — no signup required.

Last reviewed on June 13, 2026 by the AiTechWorlds Curriculum Team. Free project guide — GitHub resources included.

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CSE Projects›API Gateway with Rate Limiting

3rd YearAdvancedNetworking 5-7 weeks

A reverse-proxy API gateway that authenticates requests, applies per-client rate limits, routes to upstream services, and logs metrics.

Node.jsExpressRedisJWTDocker

1
Proxy + routing: Route incoming requests to configured upstream services with path rules.
2
Auth: Validate API keys/JWTs and attach client identity to each request.
3
Rate limiting: Implement token-bucket/sliding-window limits per client in Redis.
4
Observability: Record latency, status codes, and throttle events; expose a metrics endpoint.