# Fastly::LoggingGooglePubsubAdditional ## Properties | Name | Type | Description | Notes | | ---- | ---- | ----------- | ----- | | **topic** | **String** | The Google Cloud Pub/Sub topic to which logs will be published. Required. | [optional] | | **format** | **String** | A Fastly [log format string](https://docs.fastly.com/en/guides/custom-log-formats). | [optional][default to '%h %l %u %t \"%r\" %>s %b'] | | **project_id** | **String** | Your Google Cloud Platform project ID. Required | [optional] | [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)