ServiceWorkerGlobalScope: push event
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2023.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is only available in Service Workers.
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("push", (event) => { })
onpush = (event) => { }
Event type
Event properties
Inherits properties from its parent, ExtendableEvent. Additional properties:
PushEvent.dataRead only-
Returns a reference to a
PushMessageDataobject 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;
}
});
Specifications
| Specification |
|---|
| Push API # extensions-to-the-serviceworkerglobalscope-interface |
| Push API # dom-serviceworkerglobalscope-onpush |
Browser compatibility
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