PushSubscriptionOptions: applicationServerKey property

{{APIRef("Push API")}}{{SecureContext_Header}}{{AvailableInWorkers}}

The applicationServerKey read-only property of the {{domxref("PushSubscriptionOptions")}} interface contains the public key used by the push server.

Value

A public key your push server uses to send messages to client apps via a push server. This value is part of a signing key pair generated by your application server, and usable with elliptic curve digital signature (ECDSA), over the P-256 curve. If no applicationServerKey member is passed when initialized, it will be set to null.

Examples

In the example below the value of applicationServerKey is printed to the console.

navigator.serviceWorker.ready.then((reg) => {
  reg.pushManager.getSubscription().then((subscription) => {
    const options = subscription.options;
    console.log(options.applicationServerKey); // the public key
  });
});

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}