From 703a912310c736a948f55e8f0de10422811f879e Mon Sep 17 00:00:00 2001
From: janpeter visser <janpetervisser2@gmail.com>
Date: Fri, 24 Apr 2026 22:57:05 +0200
Subject: [PATCH] chore: middleware hernoemd naar proxy (Next.js 16)
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- middleware.ts → proxy.ts
- export function middleware → proxy
- docs/patterns/middleware.md bijgewerkt

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 docs/patterns/middleware.md | 26 ++++++++++++++------------
 proxy.ts                    | 29 +++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+), 12 deletions(-)
 create mode 100644 proxy.ts

diff --git a/docs/patterns/middleware.md b/docs/patterns/middleware.md
index e661513..91075e5 100644
--- a/docs/patterns/middleware.md
+++ b/docs/patterns/middleware.md
@@ -1,30 +1,32 @@
-# Patroon: Middleware (route protection)
+# Patroon: Proxy (route protection)
+
+In Next.js 16 hernoemd van `middleware.ts` naar `proxy.ts`, functienaam van `middleware` naar `proxy`.
 
 ```ts
-// middleware.ts
+// proxy.ts
 import { NextResponse } from 'next/server'
 import type { NextRequest } from 'next/server'
-import { getIronSession } from 'iron-session'
-import { SessionData, sessionOptions } from '@/lib/session'
+import { sessionOptions } from '@/lib/session'
 
 const protectedRoutes = ['/dashboard', '/products', '/todos', '/settings']
 const authRoutes = ['/login', '/register']
 
-export async function middleware(request: NextRequest) {
-  const response = NextResponse.next()
-  const session = await getIronSession<SessionData>(request.cookies, sessionOptions)
+export function proxy(request: NextRequest) {
+  const path = request.nextUrl.pathname
+  const isProtected = protectedRoutes.some(r => path.startsWith(r))
+  const isAuthRoute = authRoutes.some(r => path.startsWith(r))
 
-  const isProtected = protectedRoutes.some(r => request.nextUrl.pathname.startsWith(r))
-  const isAuthRoute = authRoutes.some(r => request.nextUrl.pathname.startsWith(r))
+  // Cookie-aanwezigheid controleren — volledige sessievalidatie in layout.tsx
+  const hasSession = !!request.cookies.get(sessionOptions.cookieName)?.value
 
-  if (isProtected && !session.userId) {
+  if (isProtected && !hasSession) {
     return NextResponse.redirect(new URL('/login', request.url))
   }
-  if (isAuthRoute && session.userId) {
+  if (isAuthRoute && hasSession) {
     return NextResponse.redirect(new URL('/dashboard', request.url))
   }
 
-  return response
+  return NextResponse.next()
 }
 
 export const config = {
diff --git a/proxy.ts b/proxy.ts
new file mode 100644
index 0000000..d16da0d
--- /dev/null
+++ b/proxy.ts
@@ -0,0 +1,29 @@
+import { NextResponse } from 'next/server'
+import type { NextRequest } from 'next/server'
+import { sessionOptions } from '@/lib/session'
+
+const protectedRoutes = ['/dashboard', '/products', '/todos', '/settings']
+const authRoutes = ['/login', '/register']
+
+export function proxy(request: NextRequest) {
+  const path = request.nextUrl.pathname
+  const isProtected = protectedRoutes.some(r => path.startsWith(r))
+  const isAuthRoute = authRoutes.some(r => path.startsWith(r))
+
+  // Check cookie existence only — full session validation happens in layout.tsx
+  const hasSession = !!request.cookies.get(sessionOptions.cookieName)?.value
+
+  if (isProtected && !hasSession) {
+    return NextResponse.redirect(new URL('/login', request.url))
+  }
+
+  if (isAuthRoute && hasSession) {
+    return NextResponse.redirect(new URL('/dashboard', request.url))
+  }
+
+  return NextResponse.next()
+}
+
+export const config = {
+  matcher: ['/((?!api|_next/static|_next/image|favicon.ico).*)'],
+}