The Google Firestore sink is available for Preview in the Hub.
The Google Firestore sink was introduced in CDAP 6.3.0. This sink writes data to Google Cloud Firestore.
Credentials
If the plugin is run on a Google Cloud Dataproc cluster, the service account key does not need to be provided and can be set to auto-detect. Credentials will be automatically read from the cluster environment.
If the plugin is not run on a Dataproc cluster, the path to a service account key must be provided. The service account key can be found on the Dashboard in the Cloud Platform Console. Make sure the account key has permission to access Google Cloud Firestore. The service account key file needs to be available on every node in your cluster and must be readable by all users running the job.