Supercharge Your JSS Next.js App with Progressive Web App Power!

Priyanka Gulia
4 min readApr 30, 2024

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Hey everyone! In today’s world, web apps are essential tools. But let’s face it, a spotty internet connection can disrupt the user experience. Imagine being stuck on the subway and unable to access your favorite JSS Next.js app — not ideal! Well, there’s a solution that empowers websites to function like apps, even offline: Progressive Web Apps (PWAs). Let’s explore how PWAs can elevate your JSS Next.js app, offering an app-like experience that transcends internet limitations.

PWAs: Websites That Think They’re Apps

A PWA is a website that breaks the mold. It leverages cutting-edge web technologies to deliver functionality and user experience traditionally associated with native apps. Think about it: lightning-fast loading times, push notifications to keep users informed, and the ability to be installed directly on the home screen — all without the need for an app store download. PWAs essentially blur the lines between websites and apps, offering the best of both worlds.

Why Should You PWA-fy Your JSS Next.js App?

PWAs offer a compelling proposition for both you (the developer) and your users:

  • App-like Experience, Website Convenience: PWAs deliver the responsiveness and speed of a native app but with the accessibility and flexibility of a website. This translates to a smoother user experience, regardless of internet connectivity.
  • Engagement Boost: Push notifications keep users connected to your app, even when they’re not actively browsing. This fosters engagement and encourages repeat visits.
  • SEO Advantage: Search engines love PWAs for their speed and user-friendliness. This can lead to a significant improvement in your website’s ranking, making it more discoverable.
  • Simplified Maintenance: PWAs don’t require app store approvals or updates, streamlining the maintenance process for you.
PWA Characteristics

Transforming Your JSS Next.js App into a PWA

Ready to unlock the app-like potential of your JSS Next.js app? Let’s dive into the implementation:

  • Library Time: First things first, you’ll need a PWA library. A popular choice is next-pwa.
    Installation is a breeze: just use npm install next-pwa in your terminal.
  • Manifest Magic: The next step is creating a manifest file. This file informs the browser about your PWA, including its name, icons, and how it should behave when installed.
    There are many online tools to assist you, or you can write it yourself using JSON.
    Remember to integrate the manifest with your JSS configuration to ensure proper styling is applied within the PWA context. It should be placed in the public folder.
    Here is the one I created :
manifest.json
  • Service Worker Hero: Service workers are the backbone of PWAs. These scripts run in the background, even when your app is closed. They’re responsible for caching essential files, handling push notifications, and generally making your PWA a champion at offline functionality. Next.js has built-in support for service workers, so you won’t need to write them from scratch. However, you might need to adjust your JSS setup to ensure styles are pre-cached by the service worker for offline use.
  • Configuration for Success: With your tools in place, it’s time to configure Next.js. You’ll create a next.config.js file (if you don't have one already) and add some lines to tell Next.js about your PWA setup. This will include things like referencing your manifest file and enabling service workers. Remember to consider any specific JSS configurations needed for a seamless PWA experience.
    Here is my code :
next.config.js

Ready to see the code in action? Check out the full implementation on my GitHub repository: JSS-NEXT-PWA-APP

Witness the Power of PWAs!

Now that you understand the concept and the implementation, let’s see it come to life! In the screenshots and video below, you’ll see a fully functional JSS Next.js app transformed into a basic PWA. Experience the app function seamlessly, even when you have a limited internet connection (for core functionalities)!

How to install!
How it works!

Beyond the Basics: Explore the Power of Advanced PWAs

We’ve covered the essentials of transforming your JSS Next.js app into a PWA, but there’s a whole world to explore! In future posts, we’ll delve deeper into advanced PWA features like background sync, web app themes, and more. Stay tuned to unlock the full potential of your JSS Next.js app and provide an unforgettable user experience that transcends the limitations of a traditional website.

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Priyanka Gulia

XM Cloud Certified || Senior Sitecore Developer || Crafting Web Experiences