PushEvent.data

The data read-only property of the PushEvent interface returns a reference to a PushMessageData object containing data sent to the PushSubscription.

Value

A PushMessageData object.

Examples

The following example takes data from a PushEvent and displays it on all of the service workers' clients.

self.addEventListener('push', (event) => {
  if (!(self.Notification && self.Notification.permission === 'granted')) {
    return;
  }

  const data = event.data?.json() ?? {}
  const title = data.title || "Something Has Happened";
  const message = data.message || "Here's something you might want to check out.";
  const icon = "images/new-notification.png";

  const notification = new Notification(title, {
    body: message,
    tag: 'simple-push-demo-notification',
    icon,
  });

  notification.addEventListener('click', () => {
    clients.openWindow('https://example.blog.com/2015/03/04/something-new.html');
  });
});

Specifications

Specification
Push API
# dom-pushevent-data

Browser compatibility

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