var Endpoint = oauth2.Endpoint{
AuthURL: "https://accounts.google.com/o/oauth2/auth",
TokenURL: "https://oauth2.googleapis.com/token",
AuthStyle: oauth2.AuthStyleInParams,
}
Google's OAuth 2.0 endpoint is at https://accounts.google.com/o/oauth2/v2/auth. This endpoint is accessible only over HTTPS.