Firebase Docs Reference Interface: Config functions.config.Config interface static The Functions configuration interface. Access via functions.config(). 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 April 3, 2018.