Registering a Service Worker

Installing a service worker starts by registering it on the HTML page.

Creating the service worker file

Let’s create a JavaScript file (ending with .js) in the project’s root folder.

Note: We can give any name to this service worker file. However, sw.js and service-worker.js are commonly used.

Registering the service worker

The navigator.serviceWorker.register() method is used to register a service worker on any page. It takes a single argument (path) that shows the path to the service worker file. It returns a promise.