146 lines
4.1 KiB
Markdown
146 lines
4.1 KiB
Markdown
# Cloud Messaging
|
||
|
||
Firebase Cloud Messaging ([FCM](https://firebase.google.com/docs/cloud-messaging/)) allows you to send push messages at no
|
||
cost to both Android & iOS platforms. Assuming the installation instructions have been followed, FCM is ready to go.
|
||
|
||
As the Firebase Web SDK has limited messaging functionality, the following methods within `react-native-firebase` have been
|
||
created to handle FCM in the React Native environment.
|
||
|
||
Badge notification is well known on the iOS platform, but also supported by different Android devices / launchers.
|
||
This library uses the [ShortcutBadger](https://github.com/leolin310148/ShortcutBadger) library to set the badge number
|
||
also on Android. A list of supported launcher can be found there.
|
||
|
||
!> [iOS] Please note: In order for iOS devices to receive Cloud Messages, ensure you [request permissions](http://invertase.io/react-native-firebase/#/modules/cloud-messaging?id=ios-requestpermissions).
|
||
|
||
## API
|
||
|
||
### subscribeToTopic(topic: string)
|
||
|
||
Subscribes the device to a topic.
|
||
|
||
```javascript
|
||
firebase.messaging().subscribeToTopic('foobar');
|
||
```
|
||
|
||
### unsubscribeFromTopic(topic: string)
|
||
|
||
Unsubscribes the device from a topic.
|
||
|
||
```javascript
|
||
firebase.messaging().unsubscribeFromTopic('foobar');
|
||
```
|
||
|
||
### getInitialNotification(): `Promise<Object>`
|
||
|
||
When the application has been opened from a notification `getInitialNotification` is called and the notification payload
|
||
is returned. Use `onMessage` for notifications when the app is running.
|
||
|
||
```javascript
|
||
firebase.messaging().getInitialNotification()
|
||
.then((notification) => {
|
||
console.log('Notification which opened the app: ', notification);
|
||
});
|
||
```
|
||
|
||
### getToken(): `Promise<string>`
|
||
|
||
Returns the devices FCM token. This token can be used in the Firebase console to send messages to directly.
|
||
|
||
```javascript
|
||
firebase.messaging().getToken()
|
||
.then((token) => {
|
||
console.log('Device FCM Token: ', token);
|
||
});
|
||
```
|
||
|
||
### onTokenRefresh(listener: `Function<string>`)
|
||
|
||
On the event a devices FCM token is refreshed by Google, the new token is returned in a callback listener.
|
||
|
||
```javascript
|
||
firebase.messaging().onTokenRefresh((token) => {
|
||
console.log('Refreshed FCM token: ', token);
|
||
});
|
||
```
|
||
|
||
### onMessage(listener: `Function<Object>`)
|
||
|
||
On a new message, the payload object is passed to the listener callback. This method is only triggered when the app is
|
||
running. Use `getInitialNotification` for notifications which cause the app to open.
|
||
|
||
```javascript
|
||
firebase.messaging().onMessage((message) => {
|
||
// TODO
|
||
});
|
||
```
|
||
|
||
### createLocalNotification(notification: Object)
|
||
|
||
Create a local notification from the device itself.
|
||
|
||
// TODO
|
||
|
||
### scheduleLocalNotification(notification: Object)
|
||
|
||
Schedule a local notification to be shown on the device.
|
||
|
||
### getScheduledLocalNotifications(): `Promise<Array>`
|
||
|
||
Returns an array of all currently scheduled notifications.
|
||
|
||
```javascript
|
||
firebase.messaging().getScheduledLocalNotifications()
|
||
.then((notifications) => {
|
||
console.log('Current scheduled notifications: ', notifications);
|
||
});
|
||
```
|
||
|
||
### cancelLocalNotification(id: string)
|
||
|
||
Cancels a location notification by ID, or all notifications by `*`.
|
||
|
||
```javascript
|
||
// Cancel all local notifications
|
||
firebase.messaging().cancelLocalNotification('*');
|
||
// Cancel a single local notification
|
||
firebase.messaging().cancelLocalNotification('123');
|
||
```
|
||
|
||
### removeDeliveredNotification(id: string)
|
||
|
||
Removes all delivered notifications from device by ID, or all notifications by `*`.
|
||
|
||
```javascript
|
||
// Remove all notifications
|
||
firebase.messaging().removeDeliveredNotification('*');
|
||
// Removes a single local notification
|
||
firebase.messaging().removeDeliveredNotification('123');
|
||
```
|
||
|
||
### [iOS] requestPermissions()
|
||
|
||
Requests app notification permissions in an Alert dialog.
|
||
|
||
```javascript
|
||
firebase.messaging().requestPermissions();
|
||
```
|
||
|
||
### setBadgeNumber(value: number)
|
||
|
||
Sets the badge number on the iOS app icon.
|
||
|
||
```javascript
|
||
firebase.messaging().setBadgeNumber(2);
|
||
```
|
||
|
||
### getBadgeNumber(): `Promise<number>`
|
||
|
||
Returns the current badge number on the app icon.
|
||
|
||
```javascript
|
||
firebase.messaging().getBadgeNumber()
|
||
.then((badgeNumber) => {
|
||
console.log('Current badge number: ', badgeNumber);
|
||
});
|
||
```
|