This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The PushEvent interface of the Push API represents a push message that has been received. This event is sent to the global scope of a ServiceWorker. It contains the information sent from an application server to a PushSubscription.
Constructor
PushEvent.PushEvent()- Creates a new
PushEventobject.
Properties
Inherits properties from its parent, ExtendableEvent. Additional properties:
PushEvent.dataRead only- Returns a reference to a
PushMessageDataobject containing data sent to thePushSubscription.
Methods
Inherits methods from its parent, ExtendableEvent.
Examples
The following example takes data from a PushEvent and displays it on all of the service worker's clients.
self.addEventListener('push', function(event) {
if (!(self.Notification && self.Notification.permission === 'granted')) {
return;
}
var data = {};
if (event.data) {
data = event.data.json();
}
var title = data.title || "Something Has Happened";
var message = data.message || "Here's something you might want to check out.";
var icon = "images/new-notification.png";
var notification = new self.Notification(title, {
body: message,
tag: 'simple-push-demo-notification',
icon: icon
});
notification.addEventListener('click', function() {
if (clients.openWindow) {
clients.openWindow('https://example.blog.com/2015/03/04/something-new.html');
}
});
});
Specifications
| Specification | Status | Comment |
|---|---|---|
| Push API The definition of 'PushEvent' in that specification. |
Working Draft | Initial definition. |
Browser Compatibility
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 42 | 161 17 | 442 3 | No | 37 | No |
PushEvent() constructor | 42 | 161 17 | 442 3 | No | 37 | No |
data | 57 | 161 17 | 442 3 | No | 44 | No |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | No | 42 | No | 44 484 | 37 | No | 4.0 |
PushEvent() constructor | No | 42 | No | 44 484 | 37 | No | 4.0 |
data | No | 57 | No | 44 484 | 44 | No | 4.0 |
1. From version 16: this feature is behind the Enable service workers preference.
2. Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)
3. Enabled only in Nightly, Developer Edition, and Beta channels.
4. Push enabled by default.

