ServiceWorkerGlobalScope: push event
The push
event is sent to a service worker's global scope (represented by the ServiceWorkerGlobalScope
interface) when the service worker has received a push message.
This event is not cancelable and does not bubble.
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener('periodicsync', event => { });
onperiodicsync = event => { };
Event type
Event properties
Inherits properties from its parent, PushEvent
. Additional properties:
PushEvent.data
Read only-
Returns a reference to a
PushMessageData
object containing data sent to thePushSubscription
.
Example
This example sets up a handler for push
events that takes JSON data, parses it, and dispatches the message for handling based on information contained within the message.
self.addEventListener("push", event => {
let message = event.data.json();
switch(message.type) {
case "init":
doInit();
break;
case "shutdown":
doShutdown();
break;
}
}, false);
Specifications
Specification |
---|
Push API # extensions-to-the-serviceworkerglobalscope-interface |
Browser compatibility
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