firebase-js-sdk/docs-devsite/remote-config.configupdateobserver.md

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ConfigUpdateObserver interface

Observer interface for receiving real-time Remote Config update notifications.

NOTE: Although an complete callback can be provided, it will never be called because the ConfigUpdate stream is never-ending.

Signature:

export interface ConfigUpdateObserver 

Properties

Property	Type	Description
complete	() => void	Called when the stream is gracefully terminated.
error	(error: FirebaseError) => void	Called if an error occurs during the stream.
next	(configUpdate: ConfigUpdate) => void	Called when a new ConfigUpdate is available.

ConfigUpdateObserver.complete

Called when the stream is gracefully terminated.

Signature:

complete: () => void;

ConfigUpdateObserver.error

Called if an error occurs during the stream.

Signature:

error: (error: FirebaseError) => void;

ConfigUpdateObserver.next

Called when a new ConfigUpdate is available.

Signature:

next: (configUpdate: ConfigUpdate) => void;