spb/datacenterindex

1import { SITE_URL } from "@/lib/routes";2import { sitemapIds } from "./ids";34/** Sitemap index (robots.txt points here) listing every per-id sitemap generated by app/sitemap.ts. */5export const revalidate = 3600;67export function GET(): Response {8  const now = new Date().toISOString();9  const body = `<?xml version="1.0" encoding="UTF-8"?>10<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">11${sitemapIds()12  .map((id) => `  <sitemap><loc>${SITE_URL}/sitemap/${id}.xml</loc><lastmod>${now}</lastmod></sitemap>`)13  .join("\n")}14</sitemapindex>15`;16  return new Response(body, { headers: { "Content-Type": "application/xml; charset=utf-8", "Cache-Control": "public, max-age=3600, s-maxage=3600, stale-while-revalidate=86400" } });17}18