Update app.py

app.py

@@ -32,7 +32,7 @@ def get_csv_file(docs):
 
 def get_json_file(json_docs):
     temp_dir = tempfile.TemporaryDirectory()
-    temp_filepath = os.path.join(temp_dir.name, pdf_docs.name)
+    temp_filepath = os.path.join(temp_dir.name, json_docs.name)
     with open(temp_filepath, "wb") as f:
         f.write(json_docs.getvalue())