update sitemap

src/app/sitemap.xml/route.ts

@@ -0,0 +1,41 @@
+import { relativeUrl } from "@/lib/sitemap";
+import { generateSitemaps } from "../sitemap/sitemap";
+import { env } from "@/env";
+
+export const revalidate = 60 * 60 * 24 * 7; // cache for 7 days
+
+function getLoc(id: number) {
+  return relativeUrl(`/sitemap/${id}.xml`);
+}
+
+function getLastMod() {
+  return new Date().toISOString();
+}
+
+function getSitemap(id: number) {
+  return `<sitemap><loc>${getLoc(id)}</loc><lastmod>${getLastMod()}</lastmod></sitemap>`;
+}
+
+function getSitemaps(ids: { id: number }[]) {
+  return ids.map(({ id }) => getSitemap(id)).join("");
+}
+
+export async function GET() {
+  const sitemapIds = generateSitemaps();
+
+  // We only want to generate the sitemap.xml file in production
+  const isProd = env.VERCEL_ENV === "production";
+  if (!isProd) return Response.json({ error: "Not found" }, { status: 404 });
+
+  const xml = `<?xml version="1.0" encoding="UTF-8"?>
+    <sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+      ${getSitemaps(sitemapIds as any)}
+    </sitemapindex>
+  `;
+
+  return new Response(xml, {
+    headers: {
+      "Content-Type": "application/xml",
+    },
+  });
+}