Update app.py

app.py

@@ -21,16 +21,14 @@ prompt = ChatPromptTemplate.from_messages(
     ]
 )
 
-# Streamlit app
-st.title('Langchain Demo With Ollama Llama2 API')
+# Streamlit app setup
+st.title('Langchain Demo With LLAMA2 API')
+
+# User input
 input_text = st.text_input("Search the topic you want")
 
-# Ollama LLama2 LLM with remote or local settings
-# Ensure the model points to a valid URL if not running locally
-llm = Ollama(
-    model="llama2",
-    server_url=os.getenv("OLLAMA_SERVER_URL", "http://localhost:11434")  # Add server URL to env
-)
+# Ollama LLM (ensure the model is available, or access it through Hugging Face API)
+llm = Ollama(model="llama2")
 output_parser = StrOutputParser()
 chain = prompt | llm | output_parser