client_secret.json

{
    "_comment": "Do you have your own secret key for using the API? Put it here or contact developer for request access",
    "installed":{"client_id":"XXXXXXXXexampleClientIDXXXXXXXX.apps.googleusercontent.com",
    "project_id":"programayoutube","auth_uri":"https://accounts.google.com/o/oauth2/auth",
    "token_uri":"https://oauth2.googleapis.com/token",
    "auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs",
    "client_secret":"XXXXXXXXexampleClientSecretXXXXXXXX",
    "redirect_uris":["http://localhost"]}
  }