credentials.json

{
    "installed":
        {
            "client_id": "543670958854-6qlhii3v32i00f6ejgv7ah18nbg5ssqo.apps.googleusercontent.com",
            "project_id":"quickstart-1564065779237",
            "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":"u5sxNi09soQfWhWkDZnoRQ8G",
            "redirect_uris": [
                            "urn:ietf:wg:oauth:2.0:oob",
                            "http://localhost"
            ]
        
        }
    
}