Create app.py

app.py

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+from langchain_google_genai import ChatGoogleGenerativeAI
+import os, spaces, streamlit as st
+from dotenv import load_dotenv
+
+
+# api key config
+load_dotenv()
+os.environ["GOOGLE_API_KEY"] = os.getenv('GOOGLE_API_KEY')
+# using gemini
+llm_gemini = ChatGoogleGenerativeAI(model="gemini-pro")
+# page config
+st.set_page_config(
+    page_title="Chatbot",
+    page_icon="🤖"
+)
+# using session state for storing chat history
+if 'chat_history' not in st.session_state:
+    st.session_state['chat_history'] = []
+# other page configs
+st.title("Basic Chatbot with History")
+usr_text = st.text_input("Enter Query")
+submit_button = st.button("Submit")
+
+# action on user entering text and pressing Submit button
+if submit_button and usr_text:
+    response = llm_gemini.invoke(usr_text)
+    st.subheader("Answer:")
+    st.write(response.content)
+    st.session_state.chat_history.append(f'User: {usr_text} \nAI: {response.content}')
+
+# for displaying chat history
+chat_history_text = "\n\n".join(st.session_state.chat_history)
+st.text_area("**Chat History**", value=chat_history_text, height=300)
+# button for clearing chat history
+clr_btn = st.button("Clear Chat History")
+if clr_btn:
+    st.session_state['chat_history']=[]