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Case Study

Developer API Platform

RESTful API platform serving 10k+ developers with comprehensive documentation and SDKs.

Developer API Platform
Problem

Internal APIs were undocumented, inconsistent, and required manual onboarding for every new integration. Each team built their own auth and rate-limiting.

Solution

Created a unified API gateway with auto-generated docs, SDK generation, and rate limiting. Standardized authentication and error handling across all services.

Architecture

API gateway pattern with Express-based microservices behind it.
OpenAPI specs drive auto-generated documentation via Stoplight.
SDK generation pipeline outputs TypeScript, Python, and Go clients.
MongoDB stores API keys and usage metrics.
Redis-backed rate limiting with tiered quotas.

Impact

Integration time dropped from weeks to hours. Developer NPS went from 35 to 82. The platform now serves 10k+ registered developers with 99.99% uptime.

Tech Stack
ExpressOpenAPINode.jsMongoDBRedisKubernetes