Update app.py

app.py

@@ -41,8 +41,8 @@ def handle_request():
         response_body = response.json()
 
         image_url = response_body['images'][0]['url']
-        unique_id = int(time.time() * 1000)
-        current_timestamp = unique_id // 1000
+        unique_id = str(int(time.time() * 1000))  # Convert id to string
+        current_timestamp = int(unique_id) // 1000
 
         if stream:
             response_payload = {