Build a Modern Auth System in 20 Minutes with NextJS 15 and Supabase + Free Template

Learn how to build a modern authentication system in Next.js 15 using Supabase! In this comprehensive tutorial, we'll create a production-ready auth system with features like: • Password-less authentication with magic link • Social login integration (Google) • Middleware • Persistent sessions with cookies Chapters: 0:00 - Introduction 0:32 - Start of Tutorial 0:41 - Authentication Approaches Overview 1:04 - Project Structure & Setup 2:46 - Code Organization 3:25 - Supabase Documentation & Setup 4:43 - Supabase Client Configuration 5:31 - Middleware Setup 6:35 - Authentication & Redirects 7:38 - Client & Server Actions 8:45 - Supabase Provider Configuration 9:48 - Magic Link Implementation 11:31 - Form Handling & Error States 12:16 - Google Authentication Flow 12:34 - API Callback Route 13:51 - User Data & Session Management 14:39 - Testing the Authentication 15:36 - Server vs Client Data Fetching 16:35 - Conclusion 👨‍💻Get the code here - https://github.com/Kirsanow/nextjs15-auth-tutorial 🔗 Other Next JS Tutorials: NextJS SEO Guide: https://youtu.be/_w5Jn2sAJXw?si=KS-NqkEF5Blh74OF NextJS AI app tutorial: https://youtu.be/ZhR0wRJsdAk?si=aNSdxUOrPQMrqhBi Tech stack to ship fast: https://youtu.be/mGkoSB9OAUk?si=qnDm793GGFuSkPog #nextjs #ai #webdevelopment #javascript #programming #supabase #auth 🏗️🔵 WORK with me: https://kirsanov.co 👉🔴 SUBSCRIBE for more: / @kirsnv 🏡 JOIN our Community for Indie developers: https://discord.gg/UWw4brgu ☕️ BUY ME A COFFEE if you like the content: https://buymeacoffee.com/kirsanov