app.py

import streamlit as st

# Initialize session state for conversation history
if 'conversation' not in st.session_state:
    st.session_state['conversation'] = []

# Function to update conversation
def update_conversation(message):
    st.session_state['conversation'].append(message)

# Chat interface
st.title("Streamlit Chat Interface")

# Text input for user message
user_message = st.text_input("Type your message here:")

# On message send
if user_message:
    update_conversation(f"You: {user_message}")
    # Here you can add your processing (e.g., sending message to a chatbot)
    # For demonstration, echoing the user message
    bot_response = f"Bot: Echoing '{user_message}'"
    update_conversation(bot_response)
    # Clear the input box after sending the message
    st.session_state['user_message'] = ''

# Display conversation history
for message in st.session_state['conversation']:
    st.text(message)