Add RSS feed functionality and icon to the blog

app/feed.xml/route.ts

@@ -0,0 +1,35 @@
+
+import RSS from "rss";
+import { getSortedPostsData } from "@/lib/posts";
+
+export async function GET() {
+  const feed = new RSS({
+    title: "Gabriel Kaszewski's Blog",
+    description: "A personal blog by Gabriel Kaszewski about technology, programming, and game development.",
+    site_url: "https://blog.gabrielkaszewski.dev",
+    feed_url: "https://blog.gabrielkaszewski.dev/feed.xml",
+    language: "en",
+    pubDate: new Date(),
+    copyright: `© ${new Date().getFullYear()} Gabriel Kaszewski`,
+  });
+
+  const posts = getSortedPostsData();
+
+  posts.forEach((post) => {
+    feed.item({
+      title: post.title,
+      description: post.description,
+      url: `https://blog.gabrielkaszewski.dev/posts/${post.id}`,
+      guid: post.id,
+      date: post.date,
+    });
+  });
+
+  const xml = feed.xml({ indent: true });
+
+  return new Response(xml, {
+    headers: {
+      "Content-Type": "application/xml; charset=utf-8",
+    },
+  });
+}