Readme
Demo
index.js
server.js
service-worker.js

  • index.js

  • var endpoint;

  • Register a Service Worker.

    navigator.serviceWorker.register('service-worker.js')
.then(function(registration) {

  • Use the PushManager to get the user’s subscription to the push service.

      return registration.pushManager.getSubscription()
  .then(function(subscription) {

  • If a subscription was found, return it.

        if (subscription) {
      return subscription;
    }

  • Otherwise, subscribe the user (userVisibleOnly allows to specify that we don’t plan to send notifications that don’t have a visible effect for the user).

        return registration.pushManager.subscribe({ userVisibleOnly: true });
  });
}).then(function(subscription) {
  endpoint = subscription.endpoint;

  • Show curl command to send the notification on the page.

      document.getElementById('curl').textContent = 'curl -H "TTL: 60" -X POST ' + endpoint;

  • Send the subscription details to the server using the Fetch API.

      fetch('./register', {
    method: 'post',
    headers: {
      'Content-type': 'application/json'
    },
    body: JSON.stringify({
      endpoint: subscription.endpoint,
    }),
  });
});

document.getElementById('doIt').onclick = function() {
  var delay = document.getElementById('notification-delay').value;
  var ttl = document.getElementById('notification-ttl').value;

  • Ask the server to send the client a notification. This is for testing purposes, in a real application the notifications will be directly generated by the server without the user asking for it (otherwise, what would be the point?).

      fetch('./sendNotification?endpoint=' + endpoint + '&delay=' + delay +
        '&ttl=' + ttl,
    {
      method: 'post',
    }
  );
};

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