app/routes/sitemap.ts

Functions

Imports

It imports app/lib/context.ts, app/lib/seo.ts, app/lib/site-urls.server.ts. No module of this repo imports it.

Source

1import { getEnv } from "~/lib/context";
2import { EDGE_CACHE_HEADER, SHARED_CACHE_CONTROL, SITE_ORIGIN, scheduledEdgeCacheControl } from "~/lib/seo";
3import { SITE_URLS_CACHE_TAGS, gatherSiteUrls } from "~/lib/site-urls.server";
4import { sitemapDocument } from "@drdustinedwards/site-helpers/sitemap";
5import type { Route } from "./+types/sitemap";
6
7/**
8 * Every public URL, from the one list the site map page (/site-map) also reads (app/lib/site-urls.server.ts),
9 * so the two cannot drift. What is listed, and where each `lastmod` comes from, is said there. The files it
10 * lists that are not pages (the CV's PDF) come from there too.
11 */
12export async function loader({ context }: Route.LoaderArgs) {
13  const { urls, files, nextPublishAt } = await gatherSiteUrls(getEnv(context));
14  const body = sitemapDocument([
15    ...urls.map((url) => ({ loc: SITE_ORIGIN + url.path, lastmod: url.lastmod, images: url.images?.map((src) => SITE_ORIGIN + src) })),
16    ...files.map((file) => ({ loc: SITE_ORIGIN + file.path, lastmod: file.lastmod })),
17  ]);
18
19  return new Response(body, {
20    headers: {
21      "content-type": "application/xml; charset=utf-8",
22      /* No `Vary`: this document embeds no reader state. */
23      "cache-control": SHARED_CACHE_CONTROL,
24      /* Lists posts, tags, series, procedures, the prose pages and the registry, so all four purges must reach it. */
25      "cache-tag": SITE_URLS_CACHE_TAGS,
26      [EDGE_CACHE_HEADER]: scheduledEdgeCacheControl(new Date(), nextPublishAt),
27    },
28  });
29}