Page 5: Deployment and Installation Experience Optimization

5. App Deployment and Installation Experience Optimization

One of the biggest features of a PWA is the ability for users to easily install (Add to Home Screen, A2HS) the website on their device. Optimizing this experience is crucial.

5.1. Customizing the Installation Prompt (A2HS)

When the browser detects installability, the beforeinstallprompt event is fired. You can intercept this event to display a custom installation button.

let deferredPrompt;
window.addEventListener('beforeinstallprompt', (e) => {
  // Prevent the browser\'s default installation prompt
  e.preventDefault();
  // Store the event object to be used later when the custom button is clicked
  deferredPrompt = e;
  // Logic to display a custom installation button...
});

When the user clicks the button, you can call the stored deferredPrompt.prompt() to display the installation dialog.

5.2. Pre-Deployment Checklist

• Verify that all pages function correctly offline.
• Confirm that all icons and color settings in the Manifest file are correct.
• Final check that the Lighthouse Audit score meets your target.
• Ensure HTTPS is correctly set up across the entire domain.

Once you have completed all five steps, you are ready to successfully deploy your PWA, providing users with a native app-like experience.