29 articles tagged with "api"
Middleware is the unsung hero of every Express app — it logs, validates, authenticates, and handles errors before your route handler even wakes up. Here's how to use it without shooting yourself in the foot.
JWTs are everywhere, misunderstood by most, and broken in production more often than you'd like to know. Let's fix your auth before someone else does it for you.
You shipped a breaking change and now every mobile app from 2022 is on fire. Let's talk about API versioning strategies so you never have that 3am call again.
JWTs are everywhere, and so are the mistakes. From the infamous 'alg: none' trick to storing tokens in localStorage like it's 2013 — let's fix the most common JWT security blunders before they fix you.
JWTs are everywhere — auth systems, microservices, mobile apps. They're also riddled with footguns. From the 'alg: none' disaster to secret-less HS256 setups, here's what actually goes wrong and how to stop it.
Server-Side Request Forgery is the attack behind the Capital One breach, countless cloud credential leaks, and a whole lot of red-faced engineers. If your app fetches URLs, you need to read this.
JWTs are everywhere — and so are the bugs. From the infamous 'alg: none' disaster to leaking secrets in browser storage, here's how developers routinely shoot themselves in the foot with JSON Web Tokens and how to stop.
JWTs are everywhere — and so are the mistakes that make them catastrophically insecure. From the 'alg:none' disaster to secret key leaks, here's what developers get wrong and how to fix it.
Express middleware is just functions that run before your route handler — but understanding the pattern unlocks a cleaner, more composable API architecture.
JWTs are everywhere, and so are the footguns. From the infamous 'alg: none' exploit to weak secrets and missing expiry, let's walk through how developers get JWTs catastrophically wrong — and how to fix it.
JWTs are everywhere — and so are JWT vulnerabilities. From the 'alg: none' disaster to weak secrets and missing expiry checks, here's what you're almost certainly getting wrong.
JWTs look secure — they're signed! But 'alg: none', weak secrets, and missing claim validation have leaked millions of accounts. Here's how attackers break JWTs and how to make yours bulletproof.
Webhooks sound simple — just an HTTP POST, right? Wrong. Without signature verification, idempotency, and proper retry handling, you're one duplicate event away from charging a customer twice. Let's fix that.
Your API is an all-you-can-eat buffet, and bots are that one guy with a forklift. Here's how to add a bouncer with Express rate limiting.
JWTs are everywhere — and so are the rookie mistakes that let attackers waltz right through your auth layer. Let's fix that before someone signs their own admin token.
You built an API, added authentication, and felt secure. Then someone changed /api/orders/1001 to /api/orders/1002 and read your customer's private data. Welcome to IDOR — the vulnerability hiding in plain sight!
You built an API, added auth, deployed to production. Feels secure, right? Then someone changes one number in the URL and reads every user's private data. Welcome to IDOR — the vulnerability that's embarrassingly simple and devastatingly common.
Every Express request travels a secret conveyor belt of functions before hitting your route handler. Master middleware composition and you'll write cleaner, faster, and more maintainable Node.js APIs.
Your API is an all-you-can-eat buffet — and bots are the guy who shows up with Tupperware. Rate limiting is the bouncer that fixes that.
You shipped a \"small\" API change and now 3 mobile apps are on fire. Sound familiar? Let's talk API versioning in Express — how to evolve your backend without nuking your users.
Your API is open for business — but without rate limiting, one angry user (or a rogue script) can bring the whole party to a halt. Let's fix that.
You change /api/orders/1234 to /api/orders/1235 in the URL bar — and suddenly you're reading someone else's order. That's IDOR, and it's the #1 API vulnerability. Let's fix it before a researcher does it for you!
Your API is an all-you-can-eat buffet, and without rate limiting, someone WILL eat everything. Learn how to protect your Node.js backend from abuse, bots, and that one guy who calls your endpoint 10,000 times a minute.
Middleware is the unsung hero of every Express app. Learn how to design a clean middleware pipeline that handles auth, logging, validation, and error handling — without turning your codebase into spaghetti.
GraphQL gives developers superpowers — and gives hackers a map to your entire database. After watching teams ship GraphQL APIs that leaked schemas, enabled DoS attacks, and handed attackers free admin access, here's how to not be that team.
You built an API, added authentication, and felt secure. Then a hacker changed one number in the URL and read every user's private data. IDOR is embarrassingly simple, devastatingly common, and entirely preventable — here's how.
Your API is a popular club. Rate limiting is the bouncer who keeps the chaos outside. Learn how to protect your Express server from abuse, scrapers, and the dreaded thundering herd — without turning away legit users.
You built a file download endpoint, added authentication, and shipped it. Congrats — you still got hacked. IDOR (Insecure Direct Object Reference) is the embarrassingly simple bug that's #1 in bug bounty reports and #1 in developer blind spots.
Your Express API is wide open and someone's already firing 10,000 requests a minute at it. Here's how to add rate limiting before your server turns into a crater.