persist locale on language switch when functional consent given

2026-08-13 00:57:02 +02:00
parent 5f76050fa8
commit 720bf6914b
4 changed files with 67 additions and 31 deletions
@@ -32,6 +32,10 @@ export type LocaleMiddlewareResult = {
    location: string;
    type: 'redirect';
 } | {
+    cookie?: {
+        name: string;
+        value: string;
+    };
    type: 'next';
 };
 type CreateLocaleMiddlewareArgs = {
@@ -68,10 +72,10 @@ type CreateLocaleMiddlewareArgs = {
 * import { localeMiddleware } from './ipal.middleware' // created from this factory
 * export function proxy(req) {
 *   const r = localeMiddleware(req)
- *   if (r.type === 'next') return NextResponse.next()
- *   const res = NextResponse.redirect(r.location)
- *   // cookie is optional: only present when the visitor consented to the
- *   // gating category (functional by default). Guard before setting.
+ *   // Both results may carry an optional cookie — 'next' when the visitor
+ *   // switched language (URL locale differs from the stored one) and consented,
+ *   // 'redirect' on the initial locale negotiation. Set it whenever present.
+ *   const res = r.type === 'next' ? NextResponse.next() : NextResponse.redirect(r.location)
 *   if (r.cookie) res.cookies.set(r.cookie.name, r.cookie.value)
 *   return res
 * }