feat: add manual routing

astro.config.mjs

@@ -10,6 +10,7 @@ export default defineConfig({
   i18n: {
     defaultLocale: defaultLang,
     locales: Object.keys(languages),
+    routing: "manual", // see: src/middleware.ts
   },
   integrations: [tailwind(), react(), icon()],
   site: "https://blz-it.de",

src/middleware.ts

@@ -0,0 +1,23 @@
+import { defineMiddleware } from "astro:middleware";
+import { defaultLang, languages } from "./i18n";
+
+export const onRequest = defineMiddleware(async (ctx, next) => {
+  if (ctx.url.pathname === "/youtube") {
+    return Response.redirect("https://youtube.de/@GermanITSkills");
+  }
+
+  const [, lang] = ctx.url.pathname.split("/");
+  if (!(lang in languages)) {
+    return Response.redirect(
+      new URL(`/${defaultLang}${ctx.url.pathname}`, ctx.url),
+    );
+  }
+
+  const response = await next();
+
+  if (response.status === 404) {
+    return Response.redirect(new URL(`/${lang}/not-found`, ctx.url));
+  }
+
+  return response;
+});