app/sitemap_index.xml/route.ts

import { absoluteURL } from "@/utils/utils";
import { NextResponse } from "next/server";

export async function GET() {
    const sitemaps = ["/sitemap.xml", "/blog/sitemap.xml"];

    return new NextResponse(
        `<?xml version="1.0" encoding="UTF-8"?>\n
        <sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
            ${sitemaps.map(sitemap => `<sitemap><loc>${absoluteURL(sitemap)}</loc></sitemap>`).join("")}
        </sitemapindex>
    `,
        {
            headers: {
                "Content-Type": "application/xml",
            },
        },
    );
}
1	import { absoluteURL } from "@/utils/utils";
2	import { NextResponse } from "next/server";
3
4	export async function GET() {
5	const sitemaps = ["/sitemap.xml", "/blog/sitemap.xml"];
6
7	return new NextResponse(
8	`<?xml version="1.0" encoding="UTF-8"?>\n
9	<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
10	${sitemaps.map(sitemap => `<sitemap><loc>${absoluteURL(sitemap)}</loc></sitemap>`).join("")}
11	</sitemapindex>
12	`,
13	{
14	headers: {
15	"Content-Type": "application/xml",
16	},
17	},
18	);
19	}