feat(*): Add example backend function

src/routes/api/somebackendfunction/+server.ts

@@ -0,0 +1,9 @@
+import { json } from '@sveltejs/kit';
+
+export const GET = async () => {
+	return json(await getSomeData());
+};
+
+async function getSomeData() {
+	// Do your async fetching here
+}