# Push Callbacks

Netmera provides the following push notification callbacks:

* **Push Register**: Triggered when a device registers for push notifications.
* **Push Receive**: Triggered when a push notification is received.
* **Push Open**: Triggered when a user taps the notification.
* **Push Dismiss ( only Android )**: Triggered when a user dismisses the notification. 
* **Push Button Click**: Triggered when a user interacts with a button inside the notification.
* **Carousel Object Select**: Triggered when a user selects an item in a carousel notification.

To enable these callbacks in your React Native project, follow the steps below:

### Step 1: Create `NetmeraPushHeadlessTask.ts`

* Create a new file named `NetmeraPushHeadlessTask.ts` in your React Native project and define the callback functions:

```typescript
import {
  NetmeraPushObject,
  NetmeraInteractiveAction,
  NetmeraCarouselObject
} from "react-native-netmera";

export const onPushRegister = async (data: { pushToken: string }) => {
  console.log('onPushRegister: ', data);
};

export const onPushReceive = async (push: NetmeraPushObject) => {
  console.log('onPushReceive: ', push);
};

export const onPushOpen = async (push: NetmeraPushObject) => {
  console.log('onPushOpen: ', push);
};

export const onPushDismiss = async (push: NetmeraPushObject) => {
  console.log('onPushDismiss: ', push);
};

export const onPushButtonClicked = async (
  push: NetmeraPushObject,
  action?: NetmeraInteractiveAction
) => {
  console.log('onPushButtonClicked: ', push);
  console.log('Clicked action: ', action);
};

export const onCarouselObjectSelected = async (
  push: NetmeraPushObject,
  carouselItem?: NetmeraCarouselObject
) => {
  console.log('onCarouselObjectSelected: ', push);
  console.log('Selected carousel item: ', carouselItem);
};
```

### Step 2: Register Callbacks in `index.js`

* In your `index.js` file, import the callback functions and call `setPushLifecycleCallbacks`:

```javascript
import {
    onCarouselObjectSelected,
    onPushButtonClicked,
    onPushDismiss,
    onPushOpen,
    onPushReceive,
    onPushRegister
} from "./NetmeraPushHeadlessTask";

Netmera.setPushLifecycleCallbacks(
    onPushRegister,
    onPushReceive,
    onPushOpen,
    onPushDismiss,
    onPushButtonClicked,
    onCarouselObjectSelected
);

// Ensure this is called after `Netmera.setPushLifecycleCallbacks`
AppRegistry.registerComponent(appName, () => App);
```


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