PushEvent.md

PushEvent

Namespace: SpawnDev.SpawnJS.JSObjects
Inherits: ExtendableEvent
Source: JSObjects/PushEvent.cs
MDN Reference: PushEvent on MDN

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. https://developer.mozilla.org/en-US/docs/Web/API/PushEvent

Constructors

Signature	Description
PushEvent(SpawnJSObjectReference _ref)	Deserialization constructor

Properties

Property	Type	Access	Description
Data	PushMessageData	get	Returns a reference to a PushMessageData object containing data sent to the PushSubscription.

Examples

SpawnDev.SpawnJS Mapping Note: The JavaScript examples below show the standard Web API usage. In SpawnDev.SpawnJS, the same API is available with C# conventions:

• Properties and methods use PascalCase (e.g., readyState becomes ReadyState)
• Events use ActionEvent with +=/-= (e.g., addEventListener("click", fn) becomes OnClick += handler)
• Async methods return Task<T> instead of Promise<T>
• Objects should be disposed with using statements
• Access via JS.Get<PushEvent>(...) or constructor new PushEvent(...)

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 self.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",
    );
  });
});

See full example on MDN