44 lines
1.9 KiB
JavaScript
44 lines
1.9 KiB
JavaScript
import { EventEmitter, Platform } from 'expo-modules-core';
|
|
import PushTokenManager from './PushTokenManager';
|
|
// Web uses SyntheticEventEmitter
|
|
const tokenEmitter = new EventEmitter(PushTokenManager);
|
|
const newTokenEventName = 'onDevicePushToken';
|
|
/**
|
|
* In rare situations, a push token may be changed by the push notification service while the app is running.
|
|
* When a token is rolled, the old one becomes invalid and sending notifications to it will fail.
|
|
* A push token listener will let you handle this situation gracefully by registering the new token with your backend right away.
|
|
* @param listener A function accepting a push token as an argument, it will be called whenever the push token changes.
|
|
* @return A [`Subscription`](#subscription) object represents the subscription of the provided listener.
|
|
* @header fetch
|
|
* @example Registering a push token listener using a React hook.
|
|
* ```jsx
|
|
* import React from 'react';
|
|
* import * as Notifications from 'expo-notifications';
|
|
*
|
|
* import { registerDevicePushTokenAsync } from '../api';
|
|
*
|
|
* export default function App() {
|
|
* React.useEffect(() => {
|
|
* const subscription = Notifications.addPushTokenListener(registerDevicePushTokenAsync);
|
|
* return () => subscription.remove();
|
|
* }, []);
|
|
*
|
|
* return (
|
|
* // Your app content
|
|
* );
|
|
* }
|
|
* ```
|
|
*/
|
|
export function addPushTokenListener(listener) {
|
|
const wrappingListener = ({ devicePushToken }) => listener({ data: devicePushToken, type: Platform.OS });
|
|
return tokenEmitter.addListener(newTokenEventName, wrappingListener);
|
|
}
|
|
/**
|
|
* Removes a push token subscription returned by an `addPushTokenListener` call.
|
|
* @param subscription A subscription returned by `addPushTokenListener` method.
|
|
* @header fetch
|
|
*/
|
|
export function removePushTokenSubscription(subscription) {
|
|
tokenEmitter.removeSubscription(subscription);
|
|
}
|
|
//# sourceMappingURL=TokenEmitter.js.map
|