Update app.py

app.py

@@ -3,6 +3,7 @@ import streamlit as st
 from google.oauth2 import service_account
 from googleapiclient.discovery import build
 from transformers import pipeline
+from google_auth_oauthlib.flow import InstalledAppFlow
 
 # Function to get text content from a Google Docs document using Google Drive API
 def get_text_from_google_doc(doc_id, credentials):
@@ -26,13 +27,12 @@ def get_text_from_google_doc(doc_id, credentials):
 def load_qa_model():
     return pipeline('question-answering')
 
-# Authenticate using service account credentials
+# Authenticate using OAuth 2.0 client credentials
 def authenticate_gdrive():
-    creds = service_account.Credentials.from_service_account_file(
-        'credentials.json',
-        scopes=['https://www.googleapis.com/auth/documents.readonly']
-    )
-    return creds
+    scopes = ['https://www.googleapis.com/auth/documents.readonly']
+    flow = InstalledAppFlow.from_client_secrets_file('credentials.json', scopes)
+    credentials = flow.run_local_server(port=0)
+    return credentials
 
 # Streamlit app
 st.title("Question Answering from Google Docs")