Update app.py

app.py

@@ -5,8 +5,17 @@ from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain_community.vectorstores import FAISS
 from langchain_community.llms import CTransformers
 from langchain.chains import RetrievalQA
+from huggingface_hub import snapshot_download
 
-DB_FAISS_PATH = 'https://huggingface.co/spaces/GovindRaj/upload-pdf/tree/main/vectorstore/db_faiss'
+# Download the FAISS database files
+local_dir = snapshot_download(
+    repo_id="GovindRaj/upload-pdf",
+    repo_type="space",
+    local_dir="./vectorstore"
+)
+
+# Update the path to local directory
+DB_FAISS_PATH = './vectorstore/db_faiss'
 
 custom_prompt_template = """Use the following pieces of information to answer the user's question. If you don't know the answer, just say that you don't know, don't try to make up an answer.