Getting Into HNPWA with Next.js at Google I/O 2017 Extended in Seoul, Korea

Sharing my experience of making HNPWA with Next.js frameworks built on the top of react

Transcript

1. GETTING INTO
3. Hacker News is a social news website focusing on computer science and entrepreneurship. running by y combinator, Paul Graham, that have many of clones
7. CHECKPOINT pwa, w e b m a n i f e s t , s e r v i c e w o r k e r ... all of v i e w s (Top, New, Best ...) display 3 0 i t e m s per-page _ 9 0 / 1 0 0 _ s c o r e by lighthouse auditing first interactive in < 5 s by webpagetest
8. AND MORE manual inspection by addy osmani application shell pattern (mandatory) best to work cross-browser (optional) supports offline caching of hn data (optional) server-side rendering (optional)
11. most popular news site in tech simlple main view with list detail views trimmed data for offline
15. popular frameworks with r e a c t / p r e a c t production ready easy integration with own cloud simple, but powerful performance zero-configuration of code-splitting and ssr
16. pwa features is not ready yet not in the list on hnpwa fan of zeti production
17. create-next-app page layout & hackernews api custom server & deployment pwa features, web manifest & service worker auditing optimization, #sizematters
20. yarn create next-app
22. create-next-app page layout & hackernews api custom server & deployment pwa features, web manifest & service worker auditing optimization, #sizematters
27. HACKERNEWS API official api on Firebase unofficial restful-styled api
29. e x p o r t d e f a u l t c l a s s e x t e n d s R e a c t . C o m p o n e n t { s t a t i c a s y n c g e t I n i t i a l P r o p s ( { q u e r y , p a t h n a m e } ) { / / f i r e b a s e - h a c k e r n e w s , p r o m i s e a n d / / s e r v i c e w o r k e r f e t c h e v e n t m a n a g i n g s u p p o r t s c o n s t h n = h a c k e r n e w s . i n i t ( f i r e b a s e ) c o n s t s t o r i e s = a w a i t h n . s t o r i e s ( ' t o p ' ) r e t u r n { s t o r i e s } } }
30. create-next-app page layout & hackernews api custom server & deployment pwa features, web manifest & service worker auditing optimization, #sizematters
31. CUSTOM SERVER next.js supports server-side-rendering api in order to customize routes
32. c o n s t e x p r e s s = r e q u i r e ( ' e x p r e s s ' ) / / i n c a s e o f e x p r e s s c o n s t n e x t = r e q u i r e ( ' n e x t ' ) c o n s t a p p = n e x t ( { D E V _ O R _ N O T } ) c o n s t h a n d l e = a p p . g e t R e q u e s t H a n d l e r ( ) / / c r e a t e a h a n d l e r a p p . p r e p a r e ( ) . t h e n ( ( ) = > { c o n s t s e r v e r = e x p r e s s ( ) s e r v e r . g e t ( ' * ' , ( r e q , r e s ) = > { r e t u r n h a n d l e ( r e q , r e s ) / / r e t u r n r e n d e r e d p a g e } ) s e r v e r . l i s t e n ( 3 0 0 0 , e r r = > { c o n s o l e . l o g ( ' > R e a d y o n h t t p : / / l o c a l h o s t : 3 0 0 0 ' ) } ) } )
33. DEPLOYMENT WITH NOW cloud service, very friendly to node.js deployment with zero-configuration
34. NOW COMMANDS # l i s t i n g n o w l s # r e m o v e a l l o f d e v e l o p m e n t v e r s i o n n o w r m m y a p p - - s a f e # d e p l o y m e n t a s o s s n o w - - n a m e = m y a p p - - p u b l i c
36. create-next-app page layout & hackernews api custom server & deployment pwa features, web manifest & service worker auditing optimization, #sizematters
37. PWA FEATURES web manifest for installable webapp service worker for offline experience
38. WEB MANIFEST n p m i n s t a l l - g @ p w a / m a n i f e s t p w a - m a n i f e s t . / s t a t i c . / s t a t i c / i c o n s - - i c o n s = . / a s s e t s / i c o n .
40. SERVICE WORKER < S e r v i c e W o r k e r > react component w o r k b o x , brand new service worker lib n e x t - p r e c a c h e , precache list for next.js
41. i m p o r t S c r i p t s ( ' h t t p s : / / u n p k g . c o m / w o r k b o x - s w @ 0 . 0 . 2 ' ) c o n s t w o r k b o x S W = n e w W o r k b o x S W ( { c l i e n t s C l a i m : t r u e } ) / / p l a c e h o l d e r f o r p r e c a c h e s w o r k b o x S W . p r e c a c h e ( $ { p r e c a c h e } ) w o r k b o x S W . r o u t e r . r e g i s t e r R o u t e ( ' / ' , w o r k b o x S W . s t r a t e g i e s . s t a l e W h i l e R e v a l i d a t e ( ) )
43. next-precache supports u n i q u e s t y l e d r o u t i n g of next.js n e x t - p r e c a c h e - - s w = . / s e r v i c e - w o r k e r . j s
44. create-next-app page layout & hackernews api custom server & deployment pwa features, web manifest & service worker auditing optimization, #sizematters
45. AUDITING #sizematters w e b p a g e t e s t . o r g , test in emerging mobile env l i g h t h o u s e , ref point for modern webapp b u n d l e s i z e , analyze size of your package
50. ANALYZING BUNDLE SIZE to reduce bundle size of critical route path. If there is downsizing for about 100kb, which the bytes will be estimated 1s in emerging mobile
51. webpack-bundle-size-analyzer f i r e b a s e : 6 1 8 . 7 3 K B ( 5 1 . 5 % ) r e a c t : 2 2 . 5 K B ( 3 . 8 2 % ) r e a c t - d o m : 1 2 7 . 2 4 K B ( 2 1 . 6 % ) n e x t : 9 3 . 9 3 K B ( 1 6 . 0 % )
52. create-next-app page layout & hackernews api custom server & deployment pwa features, web manifest & service worker auditing optimization, #sizematters
53. BEFORE YOU GO FOR OVER IT
59. OPTIMIZING IN NEXT.JS s s r , enhanced first meaningful time p a g e b a s e d c o d e - s p l i t t i n g p r e l o a d , to ensure fast delivery resources n e x t - p r e c a c h e , cache the pages splitted k i c k i n g m e g a b u n d l e
60. KICKING MEGA BUNDLE pull back hacker package from the app lightweight javascript framework
61. PULL BACK HACKERNEWS FROM THE APP / / s e r v i c e w o r k e r i m p o r t S c r i p t s ( ' h t t p s : / / . . . / f i r e b a s e j s / 4 . 1 . 2 / f i r e b a s e - a p p . j s i m p o r t S c r i p t s ( ' h t t p s : / / . . . / f i r e b a s e j s / 4 . 1 . 2 / f i r e b a s e - d a t a b a i m p o r t S c r i p t s ( ' h t t p s : / / . . . / f i r e b a s e - h a c k e r n e w s - s w . j s ' ) h a c k e r n e w s . i n i t ( f i r e b a s e , { w a t c h : t r u e } )
62. PULL BACK HACKERNEWS FROM THE APP API CONT' / / u n i v e r s a l f e t c h i m p o r t n o d e F e t c h f r o m ' i s o m o r p h i c - f e t c h ' i f ( i n N o d e ) { f e t c h = n o d e F e t c h } c o n s t r e s = a w a i t f e t c h ( ` $ { h o s t } / h a c k e r n e w s / $ { p a t h n a m e } ` )
64. / / f i r e b a s e : 6 1 8 . 7 3 K B ( 5 1 . 5 % ) r e a c t : 2 2 . 5 K B ( 3 . 8 2 % ) r e a c t - d o m : 1 2 7 . 2 4 K B ( 2 1 . 6 % ) n e x t : 9 3 . 9 3 K B ( 1 6 . 0 % )
68. LIGHTWEIGHT JAVASCRIPT FRAMEWORK c o n f i g . r e s o l v e . a l i a s = { " r e a c t " : " p r e a c t - c o m p a t / d i s t / p r e a c t - c o m p a t " , " r e a c t - d o m " : " p r e a c t - c o m p a t / d i s t / p r e a c t - c o m p a t " , }
69. PREACT / / f i r e b a s e : 6 1 8 . 7 3 K B ( 5 1 . 5 % ) p r e a c t : 1 9 . 9 8 K B ( 4 . 2 0 % ) / / r e a c t : 2 2 . 5 K B p r e a c t - c o m p a t : 1 6 . 7 5 K B ( 3 . 5 2 % ) / / r e a c t - d o m : 1 2 7 . 2 4 K B n e x t : 9 3 . 9 3 K B ( 1 9 . 8 % ) . . .
73. FURTHER MORE cleaned and optimized resources reactive ux, defer rendering in twitter mobile latest tools for bundling and javascript the cutting edge of features on the platform discover your secrets and share it