5 articles
No rate limiting means any client can hit your API as many times as it wants. This guide walks through the right way to implement it in Node.js - from express-rate-limit basics to Redis-backed sliding windows and layered per-route limits that work in production.
Stop fighting CORS. Understand preflight requests, credentials, wildcard mistakes. CORS isn't a bug—it's your API warning you about real security issues.
Most developers think session hijacking is an advanced attack. It's not. It usually starts with something very basic: your cookies. Learn the 3 flags and token refresh pattern that actually works.
You added NEXT_PUBLIC_ to your API key 'just to test something quickly.' That was six months ago. It's still there. Here's what's actually leaking — and how to stop it.
Bad auth doesn't announce itself. Here's how Slack, Netflix, GitHub, and Stripe solved JWT and role-based access — and what you can steal from them.
