PWA: an Introduction

Transcript

1. PWA: an Introduction Irfan Maulana SDE @ Bizzy Indonesia

2. Outline Intro PWA Welcoming PWA PWA Case Study PWA Playground

   Measuring PWA Learning Reference

3. Intro PWA

4. 1 Users access web from mobile phone Source:https://www.statista.com/statistics/241462/ global-mobile-phone-website-traffic-share/

5. Users already frustrated with slow web Source: DoubleClick — The need for

   mobile speed, September 2016

6. Mobile web conversion rate still poor Source: State of Mobile

   Commerce Report Q4 2015

7. But Apps needs bigger storage

8. Users uninstall Apps 30% Average users will uninstall their downloaded

   Apps Source:https://www.businessinsider.com/app-users-are-quick-to-u ninstall-2016-11/

9. Users love Apps, because of: - Performance - Offline Access

   - Background Sync - Notification - Sensors - OS & Device Access

10. If web can do these: - Performance - Offline Access

    - Background Sync - Notification - Sensors - OS & Device Access

11. If web can do these: - Performance - Offline Access

    - Background Sync - Notification (plus) - Easy distribution - Low memory - App size

12. Welcoming PWA A modern web with progressive enhancement

13. Reliable Load instantly and never show the downasaur, even in

    uncertain network conditions.

14. Fast Respond quickly to user interactions with silky smooth animations

    and no janky scrolling

15. Engaging Feel like a natural app on the device, with

    an immersive user experience.

16. PWA Case Study

17. Alibaba 76% higher conversions across browsers 4X higher interaction rate

    from Add to Homescreen Source: https://developers.google.com/web/showcase/2016/alibaba

18. Flipkart 3x more time spent on site 40% higher re-engagement

    rate 70% greater conversion rate 3x lower data usage Source: https://developers.google.com/web/showcase/2016/flipkart

19. Twitter Lite 65% increase in pages per session 75% increase

    in Tweets sent 20% decrease in bounce rate Source: https://developers.google.com/web/showcase/2017/twitter

20. OLX 23% less time until page is interactive 80% lower

    bounce rates 146% higher CTR on Ads 250% more re-engagement Source: https://developers.google.com/web/showcase/2017/olx

21. PWA Playground

22. Required skills HTML JS

23. Service Worker: Registration

24. Service Worker: Installing What we’ve done? 1. Open a cache.

    2. Cache our files. 3. Confirm whether all the required assets are cached or not.

25. Behind the scene Source: https://jakearchibald.com/2014/offline-cookbook/

26. Caching Strategy: Cache Only Source: https://jakearchibald.com/2014/offline-cookbook/

27. Caching Strategy: Cache Only Source: https://jakearchibald.com/2014/offline-cookbook/

28. Caching Strategy: Network Only Source: https://jakearchibald.com/2014/offline-cookbook/

29. Caching Strategy: Network Only Source: https://jakearchibald.com/2014/offline-cookbook/

30. Caching Strategy: Cache, fallback Network Source: https://jakearchibald.com/2014/offline-cookbook/

31. Caching Strategy: Cache, fallback Network Source: https://jakearchibald.com/2014/offline-cookbook/

32. Caching Strategy: Cache, Network Race Source: https://jakearchibald.com/2014/offline-cookbook/

33. Caching Strategy: Cache, Network Race Source: https://jakearchibald.com/2014/offline-cookbook/

34. Add to Home Screen (A2HS)

35. Add manifest.json for A2HS

36. Insert manifest.json in HTML

37. What next: PWA Checklist http://bit.ly/pwa-howto

38. What next: PWA Journey

39. Measuring PWA

40. Manifest Checking

41. SW Checking

42. Built-in Lighthouse

43. Lighthouse Result

44. Centralize Lighthouse

45. Lighthouse CI

46. Learning Reference

47. Website https://developers.google.com/web/progressive-web-apps/ https://serviceworke.rs/ https://jakearchibald.com/2014/offline-cookbook/

48. Sample Code http://bit.ly/gdk-pwa

49. Community medium.com/wwwid t.me/wwwid_pwa

50. Questions?

51. Thank You - github.com/mazipan - twitter.com/@Maz_Ipan - t.me/irfanmaulana - medium.com/@mazipanneh