voluptasmollitia/docs-exp/messaging.getmessaging.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/messaging](./messaging.md) &gt; [getMessaging](./messaging.getmessaging.md)

## getMessaging() function

Retrieves a Firebase Cloud Messaging instance.

<b>Signature:</b>

```typescript
export declare function getMessagingInWindow(app?: FirebaseApp): FirebaseMessaging;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  app | [FirebaseApp](./app.firebaseapp.md) |  |

<b>Returns:</b>

[FirebaseMessaging](./messaging.firebasemessaging.md)

The Firebase Cloud Messaging instance associated with the provided firebase app.