JSONLoader revise

app.py

@@ -55,7 +55,7 @@ def get_csv_file(docs):
 def get_json_file(docs):
     temp_dir = tempfile.TemporaryDirectory()
     temp_filepath = os.path.join(temp_dir.name, docs.name)
-    with open(temp_filepath, "wb") as f:
+    with open(temp_filepath, 'wb') as f:
         f.write(docs.getvalue())
     json_loader = JSONLoader(file_path=temp_filepath,
                              jq_schema='.messages[].userId',