In this calm, clear coding tutorial, we complete our login system by adding logout functionality. This is the final part of the Build a Login System from Scratch in NextJS series. You’ll see a full working demo where a logged-in user logs out, the session is removed, and the app no longer recognizes them. Then we walk through exactly how logout works—step by step—using simple, comment-driven code. 🧠 What you’ll learn How logout works in a session-based system How to delete a session from the database How to clear cookies from the browser How the server “forgets” a user How login and logout complete the authentication flow 🔧 Tech used Next.js (App Router) TypeScript PostgreSQL (via Vercel Postgres) Cookies + Sessions 🎯 Series: Build a Login System from Scratch in NextJS Part 1: Sign Up Part 2: Log In Part 3: Sessions & Cookies Part 4: Logging Out (this video) 🔜 What’s next Now that you’ve built a complete login system, you can: Protect routes and APIs Add roles or permissions Build real-world applications 💙 Support AutistiCoder If you’d like to support what I’m building: https://patreon.com/AutistiCoder Affirmations to support your coding journey AutistiCoder reference guide to help you learn 📌 Final note If this kind of direct, autism-friendly tutorial is helpful, subscribing is a great way to find your way back here.

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