Firebase Docs Reference com.google.firebase.cloud Classes FirestoreClient FirestoreClient provides access to Google Cloud Firestore. StorageClient StorageClient provides access to Google Cloud Storage APIs. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated February 14, 2019.