Once you have developed and optimized your Progressive Web App (PWA), the next step is to deploy it and make it accessible to users. In this chapter, you will learn how to host your PWA on a server, make it installable, and how to integrate it into app stores.

Hosting Requirements for PWAs

For a PWA to be functional, it must meet certain technical requirements:

• HTTPS mandatory: All PWAs must be served over HTTPS to ensure data security.
• Static files: The resources of the PWA (HTML, CSS, JavaScript) must be properly organized and accessible from the server.
• Support for service workers: Ensure the server allows installation and operation of service workers.

Basic Server Configuration

Technical Example: Configuring a Server with Nginx

nginx

Making Your PWA Installable

To make your PWA installable on devices, ensure it meets the following requirements:

1. Valid manifest file: Include the manifest.json with necessary attributes like name, icons, and start_url.
2. Registered service worker: The service worker must be active and control the application's pages.
3. HTTPS connection: The PWA must be hosted on a secure server.

Installation Test in the Browser

Open your PWA in a compatible browser (such as Chrome or Edge) and verify that the "Install" button is available in the toolbar. If it doesn't appear, check the manifest file and the browser's console for issues.

Publishing Your PWA in App Stores

Although PWAs do not need app stores to be installed, publishing them on these platforms can increase their reach and accessibility.

Publishing on Google Play Store

Google allows PWAs to be published on the Play Store using tools like Trusted Web Activities (TWA). This requires packaging your PWA as a native application.

Basic Steps to Use TWA:

1. Create a project in Android Studio.
2. Use the Bubblewrap framework to package your PWA.
3. Set up signing keys and publish the app on the Play Store.

Publishing on Microsoft Store

Microsoft makes it easy to publish PWAs on its store through its PWA Builder tool. This process includes:

1. Scanning your PWA with PWA Builder.
2. Generating an app package.
3. Publishing it on the Microsoft Store.

Benefits of Publishing Your PWA in Stores

1. Greater visibility: App stores broaden your PWA's reach to the general public.
2. Platform integration: Being in a store makes your PWA feel more native to platform users.
3. Easy discovery: Users can find your app through store searches.

Conclusion

Deploying and distributing your PWA are key steps to ensure your app reaches your users efficiently and professionally. By following these best practices, you can make your PWA accessible both from the web and through app stores. In the next chapter, we will explore the future of PWAs and emerging trends shaping this technology. Don't miss it!