Update app.py

Access streamlit secrets

app.py

@@ -12,6 +12,12 @@ from langchain.text_splitter import CharacterTextSplitter
 from langchain.vectorstores import Chroma
 
 env_vars = dotenv_values(".env")
+LOCAL=False
+if not LOCAL:
+    env_vars = {
+        "HUGGINGFACE_API_TOKEN": st.secrets["HUGGINGFACE_API_TOKEN"],
+        "HUGGINGFACE_MODEL": st.secrets["HUGGINGFACE_MODEL"]
+    }
 
 # prepare Falcon Huggingface API
 llm = HuggingFaceEndpoint(