Save uploaded files in temp directory

app.py

@@ -9,6 +9,8 @@ from pathlib import Path
 from typing import Any, Dict, List, Optional, Union
 import copy
 import datetime
+import tempfile
+import os
 
 PARQUET_DATASET_DIR = Path("parquet_dataset")
 PARQUET_DATASET_DIR.mkdir(parents=True,exist_ok=True)
@@ -46,7 +48,9 @@ uploaded_file_paths = st.file_uploader("Upload an audio of classroom activity to
 supported_file_types = ('.wav','.mp3','.mp4','.txt')
 
 valid_files = []
+file_paths = []
 audio_tabs = []
+temp_dir = tempfile.mkdtemp()
 
 if uploaded_file_paths is not None:
     # Reset valid_files?
@@ -56,7 +60,11 @@ if uploaded_file_paths is not None:
             uploaded_file = None
         else:
             if uploaded_file not in valid_files:
+                path = os.path.join(temp_dir, uploaded_file.name)
+                with open(path, "wb") as f:
+                    f.write(uploaded_file.getvalue())
                 valid_files.append(uploaded_file)
+                file_paths.append(path)
     if len(valid_files) > 0:
         audio_tabs = st.tabs([f.name for f in valid_files])
 
@@ -198,7 +206,7 @@ radio = st.radio('Pick one:', ['Left','Right'])
 selection = st.selectbox('Select', [1,2,3])
 if st.button("Upload Files to Dataset"):
     save_data({"color":colorPref,"direction":radio,"number":selection},
-             valid_files,
+             file_paths,
              userid)
     st.success('I think it worked!')