http://localhost:8000/oauth2callback

 {
   "web": {
     "client_id": [ CLIENT_ID ],
     "client_secret": [ CLIENT_SECRET ],
     "redirect_uris": [],
     "auth_uri": "https://accounts.google.com/o/oauth2/auth",
     "token_uri": "https://accounts.google.com/o/oauth2/token"
   }
 }