feat: add docs/sections endpoint to list all docs sections

Author: paoloricciuti

apps/svelte.dev/src/routes/docs/sections/+server.ts

@@ -0,0 +1,21 @@
+import { docs } from '$lib/server/content';
+import { json } from '@sveltejs/kit';
+
+export const prerender = true;
+
+export function GET({ url: { searchParams } }) {
+	const complete = searchParams.has('complete');
+	// by default we return a light version with just the title, the slug and the file path
+	// but the user can opt in to get the complete content by adding ?complete
+	if (complete) {
+		return json(docs.pages);
+	}
+	return json(
+		Object.fromEntries(
+			Object.entries(docs.pages).map(([key, page]) => [
+				key,
+				{ metadata: { title: page.metadata.title }, slug: page.slug, file: page.file }
+			])
+		)
+	);
+}