Authentication middleware in Next.js
From the Next.js cheat sheet · Middleware · verified Jul 2026
Authentication middleware
typescript
// proxy.ts (Next.js 16 - was middleware.ts) - Authentication example💡 Protect routes with auth checks
⚡ Redirect unauthenticated users
📌 Work with JWT tokens
🔥 Integration with auth libraries
Continue with Next.js
Save the full cheat sheet or work through every related task.