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Fix dynamic lastmod in sitemap.xml.ts #5

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Fix dynamic lastmod in sitemap.xml.ts #5

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7 changes: 7 additions & 0 deletions src/config/seo.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
export const seoConfig = {
lastmod: "2025-06-01T00:00:00Z",
} as const;

export function getLastmod(): string {
return process.env.SITEMAP_LASTMOD ?? seoConfig.lastmod;
}
2 changes: 1 addition & 1 deletion src/pages/robots.txt.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import type { APIRoute } from "astro";
import { siteConfig } from "../config/site";
import { siteConfig } from "@/config/site";

export const GET: APIRoute = () => {
const robotsTxt = `User-agent: *
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36 changes: 21 additions & 15 deletions src/pages/sitemap.xml.ts
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Original file line number Diff line number Diff line change
@@ -1,27 +1,33 @@
import type { APIRoute } from "astro";
import { siteConfig } from "../config/site";
import { siteConfig } from "@/config/site";
import { getLastmod } from "@/config/seo";

const ALWAYS = [
{ loc: siteConfig.url, priority: "1.0" },
{ loc: `${siteConfig.url}/downloads`, priority: "0.8" },
];

export const GET: APIRoute = () => {
const lastmod = getLastmod();

const urls = ALWAYS.map(
(page) => ` <url>
<loc>${page.loc}</loc>
<lastmod>${lastmod}</lastmod>
<changefreq>weekly</changefreq>
<priority>${page.priority}</priority>
</url>`
).join("\n");

const sitemap = `<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>${siteConfig.url}</loc>
<lastmod>${new Date().toISOString()}</lastmod>
<changefreq>weekly</changefreq>
<priority>1.0</priority>
</url>
<url>
<loc>${siteConfig.url}/downloads</loc>
<lastmod>${new Date().toISOString()}</lastmod>
<changefreq>weekly</changefreq>
<priority>0.8</priority>
</url>
</urlset>
`;
${urls}
</urlset>`;

return new Response(sitemap, {
headers: {
"Content-Type": "application/xml; charset=utf-8",
"Cache-Control": "public, max-age=86400, s-maxage=3600",
},
});
};
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