add covers to custom feeds as well as implement uniqueIds

src/pages/api/create-feed.ts

@@ -0,0 +1,34 @@
+import type { APIRoute } from "astro";
+import { createHash } from 'crypto';
+
+// In-memory storage (replace with database in production)
+const feedMappings = new Map<string, { slugs: string[], lang: string }>();
+
+export const POST: APIRoute = async ({ request }) => {
+  try {
+    const { slugs, lang } = await request.json();
+
+    if (!Array.isArray(slugs) || slugs.length === 0) {
+      return new Response("Invalid slugs array", { status: 400 });
+    }
+
+    // Create a unique hash based on slugs and language
+    const dataString = `${slugs.sort().join(',')}:${lang}`;
+    const hash = createHash('md5').update(dataString).digest('hex').slice(0, 8);
+
+    // Store the mapping
+    feedMappings.set(hash, { slugs, lang });
+
+    return new Response(JSON.stringify({ feedId: hash }), {
+      status: 200,
+      headers: {
+        'Content-Type': 'application/json'
+      }
+    });
+  } catch (error) {
+    return new Response("Invalid request", { status: 400 });
+  }
+};
+
+// Export the mappings for use in other files
+export { feedMappings };