Sign in With Google in Node.js — Without Passport
Learn how to implement Google Sign-In in Node.js without Passport.js by building the complete OAuth 2.0 flow yourself. This guide covers PKCE, CSRF pr...
Tutorial
Rate Limiting Alone Won't Stop a Patient Attacker
IP-based throttling and account-based lockout solve different problems and neither substitutes for the other. Built and tested in NestJS: the exact re...
Tutorial
Background Jobs in NestJS with BullMQ: A Complete Walkthrough
A from-scratch background job pipeline in NestJS using BullMQ and Redis, demonstrated on an async LLM draft-generation endpoint — covering retry/backo...
Tutorial
IDOR Vulnerabilities in NestJS: How to Build Ownership Guards That Actually Protect Your Data
IDOR is OWASP's top API risk for a reason. A single missing ownership check can expose customer data across your entire application. This guide shows ...
The "Native-First" Revolution: How Node.js 24 Is Ending Dependency Hell in 2026
Node.js 24 LTS quietly replaces many of JavaScript’s most-used tools. TypeScript execution, testing, env loading, SQLite, HTTP requests, file watching...
JWT Authentication Done Right: The 2026 Security Playbook
Most JWT implementations have at least one critical security flaw. Algorithm confusion, token theft via XSS, missing expiry validation, improper stora...
The Node.js Event Loop Is Not Magic — It's a Contract
Every Node.js performance problem is either an event loop violation or a consequence of one. This is the guide to understanding the contract, diagnosi...
Why Your App Is Slow (And It's Not the Database)
Slow APIs with a clean slow query log trace to one of five root causes. Four have nothing to do with query execution. Here's how to identify each one,...
Redis Caching in Node.js: The Patterns That Actually Hold Up in Production
A cache hit rate below 50% means your caching strategy is broken, not your hardware. Here's the production Redis playbook — patterns, invalidation, st...