Get the currently active service worker
Listen for service worker state change and message events https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/state
Enable web push notifications. If not subscribed, a new subscription will be created and registered. Test Push Server: https://web-push-codelab.glitch.me/ Push Server Libraries: https://github.com/web-push-libs/ API Doc: https://developers.google.com/web/fundamentals/codelabs/push-notifications/
Register the service-worker.js file in the browser Make sure the service-worker.js is part of the build for example with Angular, modify the angular-cli.json file and add to "assets" array "service-worker.js"
Optional filePath: stringService worker file. Defaults to "/service-worker.js"
Optional scope: stringThe service worker scope. Defaults to "/"
Send a message to the service worker. The service worker needs to implement `self.addEventListener('message') to handle the message. This currently does not work in Safari or IE.
An arbitrary JSON object or string message to send to the service worker - see: https://developer.mozilla.org/en-US/docs/Web/API/Transferable
Provides a means to registering a service worker in the browser and communicating with it via postMessage events. https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/
postMessage events are currently not supported in all browsers. See: https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API
At the minmum this class will register the service worker and listen and attempt to dispatch messages on state change and record analytics events based on the service worker lifecycle.