feat/SW-550 sitemap route

* feat(SW-550): Added rewrites to handle sitemap paths

* feat(SW-550): Added sitemap-index generation

* feat(SW-550): Added sitemap xml file generation

* feat(SW-550): Added feature flag 'HIDE_FOR_NEXT_RELEASE' to sitemap routes


Approved-by: Linus Flood

.gitignore

@@ -11,3 +11,6 @@ node_modules
 
 # Turbo
 .turbo
+
+# Local Netlify folder
+.netlify

apps/scandic-web/app/api/sitemap/utils.ts

@@ -1,6 +1,8 @@
 import { Lang } from "@/constants/languages"
 import { env } from "@/env/server"
 
+import { removeTrailingSlash } from "@/utils/url"
+
 import {
   mergeEntriesCounter,
   mergeEntriesSuccessCounter,
@@ -114,13 +116,11 @@ function mapEntriesToSitemapEntry(entries: SyncItem[]) {
   if (mainEntry) {
     const { locale, url } = mainEntry.data
     const sitemapEntry: SitemapEntry = {
-      url: `${env.PUBLIC_URL}/${locale}${url}`,
+      url: removeTrailingSlash(`${env.PUBLIC_URL}/${locale}${url}`),
       lastModified,
       changeFrequency,
       priority,
-    }
+      alternates,
-    if (alternates) {
-      sitemapEntry.alternates = alternates
     }
     return sitemapEntry
   }

apps/scandic-web/app/sitemap/[sitemapId]/route.ts

@@ -0,0 +1,50 @@
+import { notFound } from "next/navigation"
+
+import { env } from "@/env/server"
+
+import { getSitemapDataById } from "@/utils/sitemap"
+
+import type { NextRequest } from "next/server"
+
+export const dynamic = "force-dynamic"
+
+export async function GET(
+  _request: NextRequest,
+  context: { params: { sitemapId: string } }
+) {
+  if (env.HIDE_FOR_NEXT_RELEASE) {
+    notFound()
+  }
+
+  const sitemapId = context.params.sitemapId
+  if (!sitemapId) {
+    notFound()
+  }
+
+  const sitemapData = await getSitemapDataById(Number(sitemapId))
+  if (!sitemapData.length) {
+    notFound()
+  }
+
+  const entries = sitemapData.map((entry) => {
+    const alternates = Object.entries(entry.alternates).map(
+      ([lang, url]) =>
+        `<xhtml:link rel="alternate" hreflang="${lang}" href="${url}" />`
+    )
+
+    return `
+<url>
+  <loc>${entry.url}</loc>
+  <lastmod>${entry.lastModified}</lastmod>
+  <changefreq>${entry.changeFrequency}</changefreq>
+  <priority>${entry.priority}</priority>
+  ${alternates.join("")}
+</url>`
+  })
+
+  const sitemapXML = `<?xml version="1.0" encoding="UTF-8"?>\n<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">${entries.join("")}\n</urlset>`
+
+  return new Response(sitemapXML, {
+    headers: { "Content-Type": "text/xml" },
+  })
+}

apps/scandic-web/app/sitemap/route.ts

@@ -0,0 +1,29 @@
+import { notFound } from "next/navigation"
+
+import { env } from "@/env/server"
+
+import { getLastUpdated, getSitemapIds } from "@/utils/sitemap"
+
+export const dynamic = "force-dynamic"
+
+export async function GET() {
+  if (env.HIDE_FOR_NEXT_RELEASE) {
+    notFound()
+  }
+
+  const lastUpdated = await getLastUpdated()
+  const sitemaps = await getSitemapIds()
+
+  const urls = sitemaps.map(
+    (id) => `<sitemap>
+  <loc>${env.PUBLIC_URL}/sitemap-${id}.xml</loc>
+  <lastmod>${lastUpdated}</lastmod>
+</sitemap>`
+  )
+
+  const sitemapIndexXML = `<?xml version="1.0" encoding="UTF-8"?>\n<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">${urls.join("")}\n</sitemapindex>`
+
+  return new Response(sitemapIndexXML, {
+    headers: { "Content-Type": "text/xml" },
+  })
+}

apps/scandic-web/next.config.js

@@ -308,6 +308,14 @@ const nextConfig = {
           source: findMyBooking.sv,
           destination: "/sv/hotelreservation/get-booking",
         },
+        {
+          source: `/sitemap-:id(\\d{1,}).xml`,
+          destination: `/sitemap/:id`,
+        },
+        {
+          source: `/sitemap-index.xml`,
+          destination: `/sitemap`,
+        },
       ],
     }
   },

apps/scandic-web/types/sitemap.ts

@@ -16,7 +16,7 @@ export interface SitemapEntry {
   lastModified: string
   changeFrequency: ChangeFrequency
   priority: number
-  alternates?: Partial<Record<Lang, string>>
+  alternates: Partial<Record<Lang, string>>
 }
 
 export type SitemapData = SitemapEntry[]