Package not working with Next.js 15 (Async Request APIs)

[piotrkulpinski]

Hi,

I just upgraded Next.js to v15, and the next-sitemap package stopped working. The request API is now async, which seems to disrupt the sitemap generation functionality.

Has anyone managed to get sitemaps working with Next 15?

Thanks!

[mezotv]

Personally I just use nextjs native sitemap feature nowadays since this library is not maintained anymore.

[Hahlh]

@mezotv I don't think that's accurate anymore: #865

[mezotv]

@mezotv I don't think that's accurate anymore: #865

Fair enough, hopefully the lib is working again soon!

[rtatarinov]

@iamvishnusankar any updates from you? It would be so nice if you implement nextjs15 support into this package

[dymoo]

Personally I just use nextjs native sitemap feature nowadays since this library is not maintained anymore.

Next sitemap doesn't allow for sitemap index generation and I've had problems creating 'force-dynamic' sitemaps, sitemap.ts doesn't seem to respect export const dynamic...

I've written my own mini version of this lib if any one wants to copy paste.

import { NextResponse } from "next/server";

export function buildSitemapIndex(sitemaps: string[]) {
  let xml = '<?xml version="1.0" encoding="UTF-8"?>';
  xml += '<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';

  for (const sitemapURL of sitemaps) {
    xml += "<sitemap>";
    xml += "<loc>";
    xml += sitemapURL;
    xml += "</loc>";
    xml += "</sitemap>";
  }

  xml += "</sitemapindex>";

  return new NextResponse(xml, {
    headers: {
      "Content-Type": "application/xml",
      "Content-Length": Buffer.byteLength(xml).toString(),
    },
  });
}

type TSitemapEntry = {
  priority?: number;
  loc: string;
  changefreq?:
    | "always"
    | "hourly"
    | "daily"
    | "weekly"
    | "monthly"
    | "yearly"
    | "never";
  lastmod?: Date;
};

export function buildSitemap(items: TSitemapEntry[]) {
  let xml = '<?xml version="1.0" encoding="UTF-8"?>';
  xml += `<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">`;

  for (const item of items) {
    xml += "<url>";
    xml += "<loc>" + item.loc + "</loc>";
    if (item.lastmod) {
      xml += "<lastmod>";
      xml += item.lastmod.toISOString();
      xml += "</lastmod>";
    }
    if (item.changefreq) {
      xml += "<changefreq>";
      xml += item.changefreq;
      xml += "</changefreq>";
    }
    if (item.priority) {
      xml += "<priority>";
      xml += item.priority;
      xml += "</priority>";
    }
    xml += "</url>";
  }

  xml += "</urlset>";

  return new NextResponse(xml, {
    headers: {
      "Content-Type": "application/xml",
      "Content-Length": Buffer.byteLength(xml).toString(),
    },
  });
}

ibn4 template literals are the same speed as concatenation...