use collections and provide rss feed for the blog

src/pages/rss.xml.ts

@@ -0,0 +1,22 @@
+import rss from '@astrojs/rss';
+import sanitizeHtml from 'sanitize-html';
+import { marked } from 'marked';
+import {getCollection} from "astro:content";
+
+export async function GET(context: { site: any; }) {
+    const posts = await getCollection('posts');
+
+    return rss({
+        title: 'YouHaveBlog',
+        description: 'Something that\'s supposed to be thoughts.',
+        site: context.site,
+        items: posts.map((post) => ({
+            link: `/blog/${post.slug}/`,
+            content: sanitizeHtml(marked.parse(post.body), {
+                allowedTags: sanitizeHtml.defaults.allowedTags.concat(['img'])
+            }),
+            pubDate: new Date(post.data.publishDate),
+            ...post.data,
+        })),
+    });
+}