app.py

from dotenv import load_dotenv
load_dotenv()

import streamlit as st
import os
import google.generativeai as genai

genai.configure(api_key = os.getenv('GOOGLE_API_KEY'))

# Function to load Gemini Pro model and get response
model = genai.GenerativeModel('gemini-pro')

chat = model.start_chat(history=[])

def get_gemini_response(question):
    response = chat.send_message(question,stream=True)
    return response


## initialize our streamlit app

st.set_page_config(page_title='Q&A Demo')

st.header('Gemini LLM Application')

## initialize session state for chat history if does't excit
if 'chat_history' not in st.session_state:
    st.session_state['chat_history'] = []

input = st.text_input('Input: ',key='input')

submit = st.button("Ask the question")

if submit and input :
    response = get_gemini_response(input)
    # add user query and respinse to session chat history
    st.session_state['chat_history'].append(('you',input))
    st.subheader('the response is ')
    for chunk in response :
        st.write(chunk.text)
        st.session_state['chat_history'].append(('Bot',chunk.text))

st.subheader('the chat history is ')

for role,text in st.session_state['chat_history']:
    st.write(f"{role}:{text}")