# LoggingGrafanacloudlogsAdditional
## Properties
**format** | Option<**String**> | A Fastly [log format string](https://www.fastly.com/documentation/guides/integrations/streaming-logs/custom-log-formats/). |
**user** | Option<**String**> | The Grafana Cloud Logs Dataset you want to log to. |
**url** | Option<**String**> | The URL of the Loki instance in your Grafana stack. |
**token** | Option<**String**> | The Grafana Access Policy token with `logs:write` access scoped to your Loki instance. |
**index** | Option<**String**> | The Stream Labels, a JSON string used to identify the stream. |
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