According to industry experts, the real PWA usually consists of a secure and encrypted protocol, HTTPS and these websites are known to have a fast-loading time.
If you are wondering about the steps to build a successful PWA, then read below. With these steps, it is possible to convert any mobile app into a PWA if your emphasis is strongly on performance. These include –\u00a0<\/p>\n\n\n\n

Serve over HTTPS:<\/strong><\/p>\n\n\n\n

Purchase an SSL certificate from the domain registrar and configure your hosting service to HTTPS to provide the essential safety to the customers<\/p>\n\n\n\n

Creation of application shell from scratch:<\/strong><\/p>\n\n\n\n

If you don\u2019t want the users to stare at a completely blank screen, then index your HTML document in line with CSS to create an application shell. This ensures a pattern for progressive enhancement which can be updated to the Javascript version when more data comes in.\u00a0<\/p>\n\n\n\n

Register your site as a service worker: <\/strong><\/p>\n\n\n\n

To tap in the positives offered to a PWA worker such as caching, push notifications and install prompts, you need a service worker file\u00a0<\/p>\n\n\n\n

Add the push notification: <\/strong><\/p>\n\n\n\n

This can be received by service workers by tapping in via web Push API. You can tap in on self.registration.pushManager from within the service worker file. It is always a good idea to use cloud storage to keep your design files handy\u00a0<\/p>\n\n\n\n

Include a web app manifest: <\/strong><\/p>\n\n\n\n

To ensure that the PWA for mobile application is available to all users, you must include manifest.json in the application\u2019s root directory.\u00a0<\/p>\n\n\n\n

Do configuration of install prompt: <\/strong><\/p>\n\n\n\n

When a user visits A PWA, Google Chrome will automatically ask permission for it to be installed on their home screen. Apart from this, a particular user action may coerce the installation of PWA in the background without the knowledge of the user. <\/p>\n\n\n\n

To prevent this, app developers need to intercept the beforeinstallprompt<\/strong> event and save it for later to deploy the installation when required<\/p>\n\n\n\n

Analyze to understand the app\u2019s performance level: <\/strong><\/p>\n\n\n\n

To measure PWA for mobile apps, it is advised to use the metrics of the RAIL system – It calculates the response time, animation speed, idle time when the app is not performing and loading time of app.\u00a0<\/p>\n\n\n\n

Do an audit of the app with Lighthouse: <\/strong><\/p>\n\n\n\n

This Chrome Extension included as a part of Chrome DevTools runs your application under different conditions and measures the success rate on a score of 100\u00a0<\/p>\n\n\n\n