Update app.py

app.py

@@ -14,6 +14,8 @@ from azure.cosmos import CosmosClient
 from azure.cosmos.exceptions import CosmosHttpResponseError
 from pymongo import MongoClient
 from pymongo.server_api import ServerApi
+from bson.objectid import ObjectId
+from datetime import datetime
 
 logging.basicConfig(level=logging.DEBUG)
 logger = logging.getLogger(__name__)