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

AYB14 - offline first <3

Avatar for Ola Gasidlo Ola Gasidlo
October 17, 2014
Programming
2
1.2k

AYB14 - offline first <3

not including notes

Avatar for Ola Gasidlo

Ola Gasidlo

October 17, 2014
Tweet

More Decks by Ola Gasidlo

See All by Ola Gasidlo
AYB14 - offline first <3
Avatar for Ola Gasidlo zoepage
0
140
Say hello to offline first!
Avatar for Ola Gasidlo zoepage
4
2.3k
Coding the dream
Avatar for Ola Gasidlo zoepage
1
1.1k
offline first
Avatar for Ola Gasidlo zoepage
1
110

Other Decks in Programming

See All in Programming
テストコードはもう書かない：JetBrains AI Assistantに委ねる非同期処理のテスト自動設計・生成
Avatar for makun makun
0
300
テストカバレッジ100%を10年続けて得られた学びと品質
Avatar for もっち mottyzzz
2
600
Android端末で実現するオンデバイスLLM 2025
Avatar for Masayuki Suda masayukisuda
1
150
AI Coding Agentのセキュリティリスク：PRの自己承認とメルカリの対策
Avatar for さうす s3h
0
230
Cache Me If You Can
Avatar for RyuNen344 ryunen344
2
740
概念モデル→論理モデルで気をつけていること
Avatar for sunnyone sunnyone
2
190
Swift Updates - Learn Languages 2025
Avatar for Yuta Koshizawa koher
2
480
RDoc meets YARD
Avatar for Masafumi Okura okuramasafumi
4
170
FindyにおけるTakumi活用と脆弱性管理のこれから
Avatar for adachi.ryo rvirus0817
0
510
2025 年のコーディングエージェントの現在地とエンジニアの仕事の変化について
Avatar for azukiazusa azukiazusa1
24
12k
プロポーザル駆動学習 / Proposal-Driven Learning
Avatar for mackey0225 mackey0225
2
1.3k
🔨 小さなビルドシステムを作る
Avatar for Mutsuha Asada momeemt
4
680

Featured

See All Featured
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
Avatar for Tammy Everts tammyeverts
8
520
How To Stay Up To Date on Web Technology
Avatar for Chris Coyier chriscoyier
790
250k
Documentation Writing (for coders)
Avatar for Carmen Chung carmenintech
74
5k
Save Time (by Creating Custom Rails Generators)
Avatar for Garrett Dimon garrettdimon
PRO
32
1.6k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
Avatar for Joe Casabona jcasabona
33
2.4k
Code Reviewing Like a Champion
Avatar for maltzj maltzj
525
40k
Building a Scalable Design System with Sketch
Avatar for Laura Van Doore lauravandoore
462
33k
How to Ace a Technical Interview
Avatar for Jacob Kaplan-Moss jacobian
279
23k
Automating Front-end Workflow
Avatar for Addy Osmani addyosmani
1370
200k
Performance Is Good for Brains [We Love Speed 2024]
Avatar for Tammy Everts tammyeverts
12
1.1k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
Avatar for Stéphanie Walter stephaniewalter
285
13k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
Avatar for Addy Osmani addyosmani
7
840

Transcript

  1. ! Say Hello To Offline First How to build applications

    for the real world we <3 AYB

  2. Ola Gasidlo - Javascript for +10 years, full stack -

    Core Member of Hood.ie - Organizer of OpenTechSchool Dortmund ! twitter@misprintedtype github@zoepage

  3. Agenda! 1. What & why? 2. Problems 3. New approach

    4. Implementation @misprintedtype

  4. What & why? @misprintedtype

  5. The internet turned 25 this year! @misprintedtype

  6. We grew up. @misprintedtype

  7. @misprintedtype

  8. amount of mobile-only web users is out of reach @misprintedtype

  9. Tell me... @misprintedtype

  10. @misprintedtype

  11. None

  12. “WE CAN’T KEEP BUILDING APPS WITH THE DESKTOP MINDSET OF

    PERMANENT, FAST CONNECTIVITY, WHERE A TEMPORARY DISCONNECTION OR SLOW SERVICE IS REGARDED AS A PROBLEM AND COMMUNICATED AS AN ERROR.” @misprintedtype
  13. None

  14. Problems @misprintedtype

  15. @misprintedtype

  16. @misprintedtype

  17. @misprintedtype

  18. offline > error handling @misprintedtype

  19. inform user @misprintedtype

  20. @misprintedtype

  21. build trust @misprintedtype

  22. http://branch.com/b/redesigning-the-save-symbol-let-s-do-this

  23. http://branch.com/b/redesigning-the-save-symbol-let-s-do-this

  24. organise data @misprintedtype

  25. @misprintedtype

  26. decide @misprintedtype

  27. None
  28. None

  29. @misprintedtype

  30. @misprintedtype

  31. @misprintedtype

  32. @misprintedtype

  33. @misprintedtype

  34. None
  35. None
  36. None

  37. New Approaches @misprintedtype

  38. ! Rethink! (but how?) @misprintedtype

  39. http://hood.ie

  40. None
  41. None
  42. None
  43. None
  44. None
  45. None
  46. None
  47. None

  48. Implementation! @misprintedtype

  49. files data

  50. files data

  51. Manifest @misprintedtype

  52. Manifest ++ offline app usage ++ fast loading ++ full

    experience for users @misprintedtype

  53. Manifest <html manifest="example.appcache">
 ...
 </html>! ! ! ! IE8+ /

    FF 3.5+ / Chrome 4.0+ / Safari 4.0+ / Opera 10.5+ / iPhone 2.0+ / Android 2.0+ @misprintedtype

  54. Manifest AddType text/cache-manifest .appcache ! @misprintedtype

  55. Manifest CACHE MANIFEST # 2013-11-13:v3 ! CACHE index.html ! NETWORK:

    * 
 FALLBACK: /online.html /offline.html ! @misprintedtype

  56. App Cache chrome://appcache-internals/ ! @misprintedtype

  57. App Cache is a douchebag! ! http://alistapart.com/article/application-cache-is-a-douchebag

  58. App Manifest ! 1. Files always come from the cache

    (also if you are online!) @misprintedtype

  59. App Manifest ! 2. App Cache only updates if manifest

    changed @misprintedtype

  60. App Manifest ! 3. App Cache is an additional cache

    @misprintedtype

  61. App Manifest ! 4. Never change the manifest URL @misprintedtype

  62. App Manifest ! 5. Non-cached resources will not load @misprintedtype

  63. ! App Cache nanny ! ! https://www.npmjs.org/package/appcache-nanny @misprintedtype

  64. Service Worker ! - Additional cache - Deals with all

    requests - offline first, push notifications, background sync, performance @misprintedtype

  65. Service Worker ! ! ! https://github.com/slightlyoff/ServiceWorker https://jakearchibald.github.io/isserviceworkerready/ ! https://www.youtube.com/watch?v=SmZ9XcTpMS4&list=PL37ZVnwpeshGPw2RfUGNQbPsU_WGpi05J @misprintedtype

  66. files data

  67. files data

  68. ! Do not harm humans!! (first law of robotics) @misprintedtype

  69. ! Do not lose data!! (first law of offline first)

    @misprintedtype

  70. ! ! ! ! PouchDB + CouchDB = <3 !

    @misprintedtype
  71. None
  72. None

  73. CouchDB ! @misprintedtype

  74. @misprintedtype Ruth’s data
 (share with John) John’s data Ruth’s partial

    data (replicated)

  75. PouchDB ! @misprintedtype

  76. PouchDB ! @misprintedtype

  77. PouchDB ! browser storage limitation confirm Firefox IndexedDB unlimited y

    Chrome / Opera / Android 4.4+ IndexedDB % of storage y IE 10+ SQLite 250MB n Mobile Safari WebSQL 50MB n Sarafi WebSQL 5MB -> 500MB y Android 4.3 and lower IndexedDB 200MB n
  78. None

  79. ! ! hoodie <3 you! @misprintedtype / @hoodiehq! ! !