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{% comment %}
DO NOT EDIT THIS FILE!
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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.

<b>Signature:</b>

```typescript
export interface ConfigUpdateObserver 
```

## Properties

|  Property | Type | Description |
|  --- | --- | --- |
|  [complete](./remote-config.configupdateobserver.md#configupdateobservercomplete) | () =&gt; void | Called when the stream is gracefully terminated. |
|  [error](./remote-config.configupdateobserver.md#configupdateobservererror) | (error: [FirebaseError](./util.firebaseerror.md#firebaseerror_class)<!-- -->) =&gt; void | Called if an error occurs during the stream. |
|  [next](./remote-config.configupdateobserver.md#configupdateobservernext) | (configUpdate: [ConfigUpdate](./remote-config.configupdate.md#configupdate_interface)<!-- -->) =&gt; void | Called when a new ConfigUpdate is available. |

## ConfigUpdateObserver.complete

Called when the stream is gracefully terminated.

<b>Signature:</b>

```typescript
complete: () => void;
```

## ConfigUpdateObserver.error

Called if an error occurs during the stream.

<b>Signature:</b>

```typescript
error: (error: FirebaseError) => void;
```

## ConfigUpdateObserver.next

Called when a new ConfigUpdate is available.

<b>Signature:</b>

```typescript
next: (configUpdate: ConfigUpdate) => void;
```