Firebase Docs Reference Namespace: crashlytics functions.crashlytics namespace static Namespace for Firebase Crashlytics functions. Interfaces Issue IssueBuilder AppInfo VelocityAlert Method issue static event() returns functions.crashlytics.IssueBuilder Registers a Cloud Function to handle Crashlytics issue events. Returns non-null functions.crashlytics.IssueBuilder Crashlytics issue event builder interface. 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 November 7, 2017.