prep for the nook

src/routes/api/the-nook/_lib.ts

@@ -0,0 +1,21 @@
+/**
+ * Shared JSON response helpers for the The Nook license API routes.
+ * Underscore-prefixed file — not a route.
+ */
+
+export function json(data: unknown, status = 200): Response {
+  return new Response(JSON.stringify(data), {
+    status,
+    headers: { "Content-Type": "application/json" }
+  });
+}
+
+export function error(message: string, status: number): Response {
+  return json({ error: message }, status);
+}
+
+const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
+
+export function isUuid(value: unknown): value is string {
+  return typeof value === "string" && UUID_RE.test(value);
+}