Update app.py

app.py

@@ -2,7 +2,23 @@ import streamlit as st
 from streamlit.components.v1 import html
 
 
-
+state = st.session_state
+if 'my_value' not in state:
+    state['my_value'] = None
+if st.button('Set value'):
+    state['my_value'] = 'some_value'
+if state['my_value'] is not None:
+    st.write(f'<a href="?my_param={state["my_value"]}">Click here to see the value in the URL</a>')
+    
+if state['my_value'] is not None:
+    st.markdown(state['my_value'])
+    
+if state['my_value'] is not None:
+    st.write(f'<a href="?my_param={state["my_value"]}">Click here to see the value in the URL</a>')
+
+
+
+    
 from streamlit_cookies_controller import CookieController
 
 st.set_page_config('Cookie QuickStart', '🍪', layout='wide')