public final class FirebaseFunctions

FirebaseFunctions lets you call Cloud Functions for Firebase.

Summary

Public methods

getInstance

public static final @NonNull FirebaseFunctions getInstance(@NonNull String regionOrCustomDomain)

Creates a Cloud Functions client with the default app and given region or custom domain.

Parameters
@NonNull String regionOrCustomDomain

The region or custom domain for the HTTPS trigger, such as "us-central1" or "https://mydomain.com".

useEmulator

public final void useEmulator(@NonNull String host, int port)

Modifies this FirebaseFunctions instance to communicate with the Cloud Functions emulator.

Note: Call this method before using the instance to do any functions operations.

Parameters
@NonNull String host

the emulator host (for example, 10.0.2.2)
int port

the emulator port (for example, 5001)

Extension functions

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Last updated 2025-07-21 UTC.