REST API Platform
Secure, versioned API infrastructure powering modern applications
A production-grade REST API platform providing secure authentication, comprehensive user management, granular rate limiting, API versioning, auto-generated documentation, and seamless third-party integration capabilities. Built as the backbone for serving multiple frontend applications and external partners.
Business Problem
The company needed a standardized API layer that could serve web, mobile, and third-party applications consistently, with robust security, comprehensive documentation, and the ability to evolve without breaking existing integrations.
Solution
Designed a versioned REST API using Laravel with Sanctum token authentication, middleware-based rate limiting per endpoint, API resource collections for consistent responses, and Swagger/OpenAPI auto-generated documentation that stays in sync with the codebase.
Architecture
Service-oriented API architecture with Authentication Service, User Management Module, Rate Limiting Engine, API Versioning Gateway, Documentation Generator, and Webhook Dispatcher. Uses FormRequest classes for validation, transformers for response formatting, and middleware pipeline for cross-cutting concerns.
Challenges
Implementing fair rate limiting across authenticated and unauthenticated endpoints, designing a backward-compatible versioning strategy, building a webhook system that guarantees delivery with retry logic, and maintaining comprehensive test coverage across 200+ endpoints.
Performance Optimizations
Response caching for GET endpoints reduced latency by 85%, implemented conditional HTTP caching with ETags, database query optimization with select-only columns and eager loading, and Redis-backed rate limit counters for sub-millisecond checks.