Update utils/uploadAndExample.py

utils/uploadAndExample.py

@@ -0,0 +1,38 @@
+import streamlit as st
+import tempfile
+import json
+
+def add_upload(choice):
+    """
+    Provdies the user with choice to either 'Upload Document' or 'Try Example'.
+    Based on user choice runs streamlit processes and save the path and name of
+    the 'file' to streamlit session_state which then can be fetched later.
+    """
+    
+    if choice == 'Upload Document':
+        
+       # if 'filename' in st.session_state:
+          # Delete all the items in Session state
+        #    for key in st.session_state.keys():
+         #       del st.session_state[key]
+
+        uploaded_file = st.sidebar.file_uploader('Upload the File',
+                            type=['pdf', 'docx', 'txt'])
+        if uploaded_file is not None:
+            with tempfile.NamedTemporaryFile(mode="wb", delete = False) as temp:
+                bytes_data = uploaded_file.getvalue()
+                temp.write(bytes_data)
+                st.session_state['filename'] = uploaded_file.name
+                st.session_state['filepath'] = temp.name
+
+                
+    else:
+        # listing the options
+        with open('docStore/sample/files.json','r') as json_file:
+            files = json.load(json_file)
+
+        option = st.sidebar.selectbox('Select the example document',
+                              list(files.keys()))
+        file_name = file_path  = files[option]
+        st.session_state['filename'] = file_name
+        st.session_state['filepath'] = file_path