git init

app/query/route.ts

@@ -0,0 +1,22 @@
+import { db } from "@vercel/postgres";
+
+const client = await db.connect();
+
+async function listInvoices() {
+	const data = await client.sql`
+    SELECT invoices.amount, customers.name
+    FROM invoices
+    JOIN customers ON invoices.customer_id = customers.id
+    WHERE invoices.amount = 666;
+  `;
+
+	return data.rows;
+}
+
+export async function GET() {
+  try {
+  	return Response.json(await listInvoices());
+  } catch (error) {
+  	return Response.json({ error }, { status: 500 });
+  }
+}