Upgrade to Pro — share decks privately, control downloads, hide ads and more …

React in a worker, worker, worker...

22725c2d3eb331146549bf0d5d3c050c?s=47 stefan judis
May 23, 2019
Technology
1
260

React in a worker, worker, worker...

22725c2d3eb331146549bf0d5d3c050c?s=128

stefan judis

May 23, 2019
Tweet

More Decks by stefan judis

See All by stefan judis
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
0
50
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
5
1.5k
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
0
750
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
0
340
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
5
3.5k
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
1
170
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
1
410
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
2
410
22725c2d3eb331146549bf0d5d3c050c?s=48 stefanjudis
1
620

Other Decks in Technology

See All in Technology
79dcb04101764d7bf66f898dd446838e?s=48 tsukubachallenge
0
180
49f49940f0831a426745c028684bcdad?s=48 hatena
0
3k
A802bd7750e15727781f5941a2c7becb?s=48 andreasaez
0
140
40638b9e3a098313234f358d35103735?s=48 y150saya
0
310
B4dde7c05044041075d7e55d705e9cc3?s=48 youmitsu
1
2.5k
8a1af77e438c19487b710e1f0ec95df3?s=48 ushigai
0
310
9513a9cc8ee9b5f2a8b4a5a914da8411?s=48 _awache
0
150
44a210d1299a727e9d601a47dfedeabf?s=48 mot_techtalk
0
120
0a60519567997c093a11175b27c35b16?s=48 riita10069
0
160
195f71c8183f8d27da66aa0618f293b6?s=48 task4233
0
350
6eecc52120fba9d87d982684211182ec?s=48 mochico
2
410
49f49940f0831a426745c028684bcdad?s=48 hatena
0
2.7k

Featured

See All Featured
9375a9529679f1b42b567a640d775e7d?s=48 schacon
152
6.9k
B83d5b590577969ee79a5ad845411a7d?s=48 ammeep
660
55k
F716e5f737fcfb03f2cf8d1a184f1dbe?s=48 nonsquared
84
3.6k
D8fc2580cfaca035f666d9e4ee79a7f7?s=48 mongodb
25
4.1k
B3ace07412a5178ea778e7eec161fc0a?s=48 jcasabona
10
750
39488f9d172ab92fd352f2cd7b73258d?s=48 mza
82
4.4k
20bfe76b3d6105641f879fe45cfc9272?s=48 bkeepers
PRO
324
54k
B6a8f005f39d23ffc930508ac9da68b9?s=48 vanstee
122
5.1k
32de0bd2ba869609d26fd052a4622778?s=48 cromwellryan
107
6.6k
168ccec72eee0530b818d44f3fedaacf?s=48 shlominoach
177
8.1k
3d4519fd34b76fb265fc0237f3792bd4?s=48 danielanewman
208
20k
F57e2136eb9895eb95ff5dc8a1c02677?s=48 zakiwarfel
91
3.6k

Transcript

  1. @stefanjudis React in a worker, worker, worker, worker...

  2. @stefanjudis www.stefanjudis.com Heyo, I'm Stefan!

  3. Let's talk about CRA (create-react-app)

  4. None

  5. A classical Single Page App

  6. There are problems with typical single page apps...

  7. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  8. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  9. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  10. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  11. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  12. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html> No JavaScript zzzz ...

  13. 13 Million requests for JavaScript will time out. Ian Feather

    (Buzzfeed)

  14. "We don't have any non- JavaScript users". No, all your

    users are non-JS while they're downloading your JS. Jake Archibald (Google)

  15. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html>

  16. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="shortcut

    icon" href="/favicon.ico" /> <meta name="viewport" content="[ ...]" /> <meta name="theme-color" content="#000000" /> <link rel="manifest" href="/manifest.json" /> <title>React App </title> </head> <body> <noscript>No JavaScriptzzzz ... </noscript> <div id="root"> </div> <script src="/static/js/bundle.js"> </script> <script src="/static/js/0.chunk.js"> </script> <script src="/static/js/main.chunk.js"> </script> </body> </html> The spinner of death

  17. How can we do better?

  18. proxx.app

  19. nextjs.org www.gatsbyjs.org

  20. nextjs.org www.gatsbyjs.org Run the same React code on the server

    and client
  21. None
  22. None
  23. None
  24. None

  25. bundle.js

  26. bundle.js

  27. bundle.js Interactive

  28. Better performance!

  29. Better performance! Faster indexed by Google!

  30. Better performance! Faster indexed by Google! It's the same code

    front to back!

  31. But is it really the same code?

  32. module.exports = global.fetch = global.fetch || (typeof process == 'undefined'

    ? require('unfetch').default || require('unfetch') : function(url, opts) { return require('node-fetch')(url.replace(/^\/\ //g, 'https: //'), opts); });

  33. github.com/developit/unfetch/tree/master/packages/isomorphic-unfetch

  34. What if we serve HTML from an environment with the

    same methods?

  35. The Service Worker worker.js

  36. if ('serviceWorker' in navigator) { navigator.serviceWorker .register('/worker.js') .then(function(registration) {}, function(err)

    {}); }

  37. self.addEventListener('fetch', function(event) { event.respondWith( caches.match(event.request) .then(function(response) { // Cache hit

    - return response if (response) { return response; } return fetch(event.request); } ) ); });

  38. Let's try an experiment?

  39. Crowd Coding...

  40. What did just happen?

  41. None

  42. localhost:8080

  43. localhost:8080

  44. localhost:8080 worker.js

  45. localhost:8080 worker.js

  46. localhost:8080 worker.js Interactive

  47. localhost:8080 worker.js Interactive

  48. localhost:8080 worker.js Interactive

  49. localhost:8080 worker.js Interactive

  50. localhost:8080 worker.js Interactive

  51. localhost:8080 worker.js Interactive

  52. worker.js

  53. worker.js

  54. worker.js

  55. worker.js

  56. Could universal workers be a thing?

  57. Let's create a cloud worker!

  58. www.cloudflare.com/products/cloudflare-workers/

  59. developers.cloudflare.com/workers/reference/

  60. developers.cloudflare.com/workers/reference/

  61. developers.cloudflare.com/workers/reference/

  62. https://dash.cloudflare.com/9dcd7c...

  63. worker.js

  64. worker.js

  65. worker.js

  66. worker.js

  67. worker.js

  68. worker.js

  69. worker.js

  70. worker.js

  71. worker.js worker.js

  72. worker.js worker.js

  73. worker.js worker.js

  74. worker.js

  75. worker.js

  76. worker.js

  77. worker.js

  78. worker.js

  79. Is this the solution to universal JavaScript?

  80. Service worker development is still very tedious

  81. Cache handling is tough

  82. It's worth investigating!

  83. Servers with browser APIs will change how we share code!

  84. react-in-a-worker.netlify.com

  85. www.react-in-a-worker.rocks

  86. github.com/stefanjudis/react-in-a-worker

  87. One last thing...

  88. ... let's serve HTML instead of spinners.

  89. @stefanjudis sjudis@twilio.com www.stefanjudis.com Thanks.