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NestJS module and dependency injection architecture diagram

NestJS Architecture Deep Dive: Modules, Guards, Interceptors & Microservices

NestJS brings Angular-inspired architecture to Node.js backends, providing a structured, opinionated framework built on dependency injection, decorators, and TypeScript. In this deep dive, we'll explore the module system, request pipeline (guards → interceptors → pipes → handlers), custom decorators, exception filters, and how to structure a production NestJS application with microservices communication.

21 min readAug 5, 20262904

REST API design endpoints and OpenAPI documentation

backend

REST API Design Best Practices: Versioning, Error Handling, Rate Limiting & OpenAPI

A well-designed REST API is a joy to work with. A poorly designed one creates weeks of integration hell. In this guide, we cover the principles that separate great APIs from mediocre ones: resource naming, HTTP verb semantics, response envelope design, error format standards (RFC 7807), API versioning strategies, rate limiting, pagination patterns, and how to generate beautiful documentation with OpenAPI 3.1.

16 min readAug 14, 20262190

Redis cache architecture with pub/sub and streams

backend

Redis Mastery: Caching Strategies, Pub/Sub, Streams & Avoiding Cache Stampedes

Redis is the Swiss Army knife of modern backend infrastructure — in-memory data store, cache, message broker, leaderboard engine, and distributed lock manager all in one. This guide goes deep on Redis data structures, caching patterns (cache-aside, write-through, write-behind), the dangerous cache stampede problem and how to prevent it with locking and probabilistic early expiration, Pub/Sub for real-time features, and Redis Streams for durable event logs.

17 min readAug 16, 20262341

Tech Discovery & Insights

Backend Articles

NestJS Architecture Deep Dive: Modules, Guards, Interceptors & Microservices

REST API Design Best Practices: Versioning, Error Handling, Rate Limiting & OpenAPI

Redis Mastery: Caching Strategies, Pub/Sub, Streams & Avoiding Cache Stampedes