docs(blog): export blog as feed (#6958)

Author: n1ru4l

packages/web/docs/src/app/blog/feed.xml/route.ts

@@ -0,0 +1,46 @@
+// eslint-disable-next-line import/no-extraneous-dependencies
+import RSS from 'rss';
+import { getPageMap } from '@theguild/components/server';
+import { isBlogPost } from '../blog-types';
+
+export async function GET() {
+  const [_meta, _indexPage, ...pageMap] = await getPageMap('/blog');
+  const allPosts = pageMap
+    .filter(isBlogPost)
+    .map(
+      item =>
+        ({
+          title: item.frontMatter.title,
+          date: new Date(item.frontMatter.date),
+          url: `https://the-guild.dev/graphql/hive${item.route}`,
+          description: (item.frontMatter as any).description ?? '',
+          author:
+            typeof item.frontMatter.authors === 'string'
+              ? item.frontMatter.authors
+              : item.frontMatter.authors.at(0),
+          categories: Array.isArray(item.frontMatter.tags)
+            ? item.frontMatter.tags
+            : [item.frontMatter.tags],
+        }) satisfies RSS.ItemOptions,
+    )
+    .sort((a, b) => b.date.getTime() - a.date.getTime());
+
+  const feed = new RSS({
+    title: 'Hive Blog',
+    site_url: 'https://the-guild.dev/graphql/hive/blog',
+    feed_url: 'https://the-guild.dev/graphql/hive/blog/feed.xml',
+  });
+
+  for (const item of allPosts) {
+    feed.item(item);
+  }
+
+  return new Response(feed.xml({ indent: true }), {
+    headers: {
+      'Content-Type': 'application/xml; charset=utf-8',
+    },
+  });
+}
+
+export const dynamic = 'force-static';
+export const config = { runtime: 'edge' };