Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
ServiceWorkerの開発 / ServiceWorker Development
Search
Sho Miyamoto
June 01, 2019
Technology
2
620
ServiceWorkerの開発 / ServiceWorker Development
2019年にお話させていただいたServiceWorkerの開発に関する発表の資料です。部分的に(あるいは全体的に)情報が古くなっている可能性がありますのでご了承ください。
Sho Miyamoto
June 01, 2019
Tweet
Share
More Decks by Sho Miyamoto
See All by Sho Miyamoto
JavaScriptエンジンから見るランタイム / 2024-04-25
shqld
12
1.7k
Proxy-Status & Cache-Status
shqld
0
490
High Performance JavaScript / jsconfjp2019
shqld
0
480
FastlyとTypeScriptで実現するカナリアリリース / yamagoya2020
shqld
19
6.9k
Loading Performanceとの向き合い方 / InsideFrontend 2019
shqld
9
2.1k
日経電子版とPWAのこれから / PWANight vol.2
shqld
2
4.6k
日経電子版のマイクロフロントエンドとPWA / devsum2019
shqld
8
12k
Other Decks in Technology
See All in Technology
Estrategias de escalabilidade para projetos web
jessilyneh
2
230
自社開発した大規模言語モデルをどうプロダクションに乗せて運用していくか〜インフラ編〜
pfn
PRO
24
6.9k
サーバー管理しないサーバーサービスManaged DevOps Pool
kkamegawa
0
110
AI活用したくてもできなかった不動産SaaSの今とこれから
nealle
0
250
サイボウズ 開発本部採用ピッチ / Cybozu Engineer Recruit
cybozuinsideout
PRO
9
41k
スーパーマリオRPGのリメイク版の変更点からみるUX
nishiharatsubasa
1
320
Swift Testingのconfirmationを コードリーディング/Dive into Swift Testing confirmation
laprasdrum
1
220
Optuna: a Black-Box Optimization Framework
pfn
PRO
1
110
AI でアップデートする既存テクノロジーと、クラウドエンジニアの生きる道
soracom
PRO
2
390
Functional TypeScript
naoya
11
4.6k
PDF Viewer作成の今までとこれから
hunachi
0
270
プロダクトエンジニアを支えるための開発生産性向上施策
tsukakei
0
140
Featured
See All Featured
Become a Pro
speakerdeck
PRO
22
4.9k
Git: the NoSQL Database
bkeepers
PRO
425
64k
[RailsConf 2023] Rails as a piece of cake
palkan
46
4.6k
VelocityConf: Rendering Performance Case Studies
addyosmani
322
23k
Unsuck your backbone
ammeep
667
57k
How to train your dragon (web standard)
notwaldorf
85
5.6k
Principles of Awesome APIs and How to Build Them.
keavy
125
16k
Keith and Marios Guide to Fast Websites
keithpitt
408
22k
What’s in a name? Adding method to the madness
productmarketing
PRO
21
3k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
25
1.3k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
226
52k
GraphQLとの向き合い方2022年版
quramy
43
13k
Transcript
ServiceWorkerͷ ڍಈͱ։ൃ ٶຊ ক (@shqld)
- ٶຊ ক (Sho Miyamoto) - @shqld (Github) - @webseals
(Twitter) - Edge / Server / Client - Իָ - τϥϯϖοτ(JazzFunkܥʣɺϐΞϊ - ౦ೆΞδΞʹॅΈ͍ͨ ͩΕʁ
✘ PWA ✘ جຊతͳ࣮ํ๏ ✔ ServiceWorkerͷڍಈ ͢͜ͱ
ServiceWorker
https://developers.google.com/web/ fundamentals/primers/service-workers/
https://developers.google.com/web/fundamentals/primers/service-workers/
- PWAͷத֩ - ϩʔΧϧͷωοτϫʔΫϓϩΩγ - ϖʔδWindowɺφϏήʔγϣϯͱಠཱ όοΫάϥϯυͰಈ͘ SWͱ
- ΫϥΠΞϯτ͔ΒͷϦΫΤετͷδϟοΫ - ΫϥΠΞϯτͱͷϝοηʔδͷૹड৴ - ΩϟογϡͷอଘɾಡΈग़͠ - ΦϑϥΠϯ࣌ͷॲཧͷԆ SWͱ SW͕
Ͱ͖Δ͜ͱ
WebWorkerͷαϒηοτ ϥΠϑαΠΫϧ͕͋Δ SWͱ ಛ
WebWorker͕Ͱ͖Δ͜ͱશͯͰ͖Δ ServiceWorkerGlobalScope WorkerGlobalScopeΛܧঝ͍ͯ͠Δ - DOM͕ͳ͍ - postMessageͰ௨৴ - ผεϨουͰಈ͘ WebWorker
ͷαϒηοτ
SWʹϥΠϑαΠΫϧ͕ଘࡏ͢Δ ϥΠϑαΠΫϧ
ϥΠϑαΠΫϧ https://bitsofco.de/content/images/2016/07/Lifecycle-3.png
ϥΠϑαΠΫϧ https://bitsofco.de/content/images/2016/07/Lifecycle-3.png ঢ়ଶ ݹ͍worker͕ શͯऴΘΔ·Ͱ͍ͬͯΔ ్தͰࣦഊ / ৽͍͠SWʹஔ͖ΘΔલ SWεΫϦϓτͷ ύʔε͕ऴΘ͚ͬͨͩ
ϦΫΤετΛ δϟοΫͰ͖Δ
SW͕ൃՐ͢ΔΠϕϯτʹ2छྨ͋Δ - Lifecycle Events - oninstall - onactivate - Functional
Events - onfetch - onmessage - …etc. ϥΠϑαΠΫϧ Πϕϯτ
ϥΠϑαΠΫϧ https://bitsofco.de/content/images/2016/07/Lifecycle-3.png ϥΠϑαΠΫϧ Πϕϯτ oninstall onactive
ϥΠϑαΠΫϧ oninstall https://developers.google.com/web/fundamentals/primers/service-workers/lifecycle
- installingޙ - SWͷૢ࡞͕ՄೳʹͳΔ - ੩తϦιʔεͷΩϟογϡ - skipWaiting - ݹ͍workeractive
ϥΠϑαΠΫϧ oninstall
⾠ ݹ͍workerͱίϯϑϦΫτ͢Δૢ࡞ߦΘ ͳ͍ - Ωϟογϡͷআ ϥΠϑαΠΫϧ oninstall
oninstallͷޙɺݹ͍worker͕activeͰͳ͘ͳΔ λΠϛϯάʢ= ݹ͍ϖʔδ͕શͯด͡ΒΕ Δʣ·Ͱɺ৽͘͠Πϯετʔϧ͞ΕͨworkerΛ activate͠ͳ͍ oninstallதʹݺͿͱɺ͜ͷڍಈΛճආͰ͖Δ ϥΠϑαΠΫϧ skipWaiting()
⾠ ಉ͡ϖʔδͰҟͳΔεΫϦϓτ͕ಈ͘͜ ͱʹͳΔ e.g. 1. ϦιʔεA: old worker 2. ϦιʔεB:
new worker ϥΠϑαΠΫϧ skipWaiting()
ϥΠϑαΠΫϧ onactivate https://developers.google.com/web/fundamentals/primers/service-workers/lifecycle
activatingޙ ݹ͍worker͏ଘࡏ͠ͳ͍ͷͰɺoninstallͰ Ͱ͖ͳ͔ͬͨ͜ͱ͕Ͱ͖Δ σʔλϕʔεͷҠߦΩϟογϡͷফڈ ϥΠϑαΠΫϧ onactivate
࣮ࡍʹworker͕activated(= Functional Events͕ ड͚औΕΔ)ʹͳΔͷ࣍ͷφϏήʔγϣϯ͔ Β onactivateதʹݺͿͱɺଈ࠲ʹactivatedঢ়ଶʹ ભҠͰ͖Δ ϥΠϑαΠΫϧ clients.claim()
ಉҰφϏήʔγϣϯͰ్த͔ΒSW͕ϑΣο νΛδϟοΫ͢Δ͜ͱʹͳΔ ⾠ جຊతʹඞཁͳ͍ ⾠ SWͷδϟοΫʹґଘ͢Δͷͦͦྑ ͘ͳ͍ʢSW͕ଘࡏ͠ͳ͍ঢ়گͰରԠͰ͖ͳ͘ ͳΔʣ ϥΠϑαΠΫϧ clients.claim()
ϥΠϑαΠΫϧ https://bitsofco.de/content/images/2016/07/Lifecycle-3.png ϥΠϑαΠΫϧ ·ͱΊ ݹ͍worker͕ શͯऴΘΔ·Ͱ͍ͬͯΔ ్தͰࣦഊ / ৽͍͠SWʹஔ͖ΘΔલ SWεΫϦϓτͷ
ύʔε͕ऴΘ͚ͬͨͩ ϦΫΤετΛ δϟοΫͰ͖Δ `oninstall` `onactive`
ίϯτϩʔϧ = ͋Δworker͕Functional Events ΛϋϯυϧͰ͖Δ ⾠ activeͳworker !== controller ϒϥβʹΠϯετʔϧ͞ΕΔSWෳ͋Δ
- ผυϝΠϯ - ಉҰυϝΠϯ - ผείʔϓ - ಉҰείʔϓ શ͕ͯউखʹಈ͍͍ͯͨΒࠔΔ ίϯτϩʔϧ
ࠓͦͷϖʔδΛίϯτϩʔϧ͍ͯ͠Δworker `navigator.serviceWorker.controller` ίϯτϩʔϧ ίϯτϩʔϥ
ίϯτϩʔϧ ίϯτϩʔϥ ͷܾఆ Worker Worker Worker1 Worker2 their.com/ my.com/ my.com/sub/
my.com/sub/ Page my.com/sub/index.html
ίϯτϩʔϧ ίϯτϩʔϥ ͷܾఆ Worker Worker Worker1 Worker2 their.com/ my.com/ my.com/sub/
my.com/sub/ Page my.com/sub/index.html
ίϯτϩʔϧ ίϯτϩʔϥ ͷΓସΘΓ WorkerB /b/ PageA /a/index.html WorkerA /a/ PageB
/b/index.html φϏήʔγϣϯϦΫΤετؚΊͯ WorkerB͕ίϯτϩʔϧ
ServiceWorkerʹείʔϓ͕͋Δ είʔϓ = SWͷίϯτϩʔϧରൣғ σϑΥϧτSWεΫϦϓτͷύεҎԼ είʔϓ
serviceWorker.registerͷΦϓγϣϯͰࢦఆͰ͖ Δ ͨͩ͠ࢦఆͰ͖Δείʔϓʹ༏ઌͷҧ͏ ෳͷ੍ݶ͕͋Δ είʔϓ είʔϓΛ ࢦఆ͢Δ
είʔϓ είʔϓΛ ࢦఆ͢Δ Script Path navgator.serviceWorker .register({ scope }) e.g.
/sw.js e.g. /, /any/
είʔϓ είʔϓΛ ࢦఆ͢Δ Script Path navgator.serviceWorker .register({ scope }) e.g.
/static/sw.js e.g. /static/, /static/any/
είʔϓ είʔϓΛ ࢦఆ͢Δ Script Path navgator.serviceWorker .register({ scope }) e.g.
/static/sw.js `Service-Worker-Allowed` e.g. / e.g. /, /any/
⾠ δϟοΫͰ͖Δରͱແؔ ⾠ `/sub/` ͱ͍͏ࢦఆͳͷͰɺe.g. `/sub`ͷΑ͏ ͳϦιʔεείʔϓ֎ͱͳΔ είʔϓ
SWࣗମવΩϟογϡ͞ΕΔ Ωϟογϡઓུಛघ τοϓϨϕϧεΫϦϓτͱΠϯϙʔτ͞ΕΔ εΫϦϓτͰڍಈ͕ҟͳΔ SWࣗମͷ Ωϟογϡ
جຊతʹ: ͲΜͳʹͯ͘24࣌ؒޙʹඞͣωοτ ϫʔΫ͔ΒऔΓʹ͍͘ SWࣗମͷΩϟογϡ 24࣌ؒ
navigator.serviceWorker.register()ͷҾΦϓγϣϯ `imports`: - τοϓϨϕϧ: 24࣌ؒ - Πϯϙʔτ: HTTP Ωϟογϡ༏ઌ `all`:
- τοϓϨϕϧ: HTTP Ωϟογϡ༏ઌ - Πϯϙʔτ: HTTP Ωϟογϡ༏ઌ `none`: - τοϓϨϕϧ: 24࣌ؒ - Πϯϙʔτ: 24࣌ؒ SWࣗମͷΩϟογϡ updateViaCache cf. https://developers.google.com/web/updates/2018/06/fresher-sw
αʔϏεϫʔΧʔͷىಈதʹϦΫΤετ͕ ͬͨͱ͖ɺʢΩϟογϡͰࡹ͚ͳ͚Εʣ ϦΫΤετ͕Ԇͯ͠͠·͏ Navigation Preload
NavigationPreload Navigation Preload Page Server
NavigationPreload Navigation Preload Page Server Worker
NavigationPreload Navigation Preload Page Server Worker Worker ~500ms
SWͷىಈͱฒߦͯ͠ϦΫΤετ ϨεϙϯεSWͰऔಘͰ͖Δ NavigationPreload Navigation Preload
NavigationPreload Navigation Preload Page Server Worker Worker ~500ms
NavigationPreload Navigation Preload
NavigationPreload Navigation Preload
Runtime Cache Pre-cache Ωϟογϯά ͷछྨ
Runtime Cache: ফۃతΩϟογϡ Pre-cache: ੵۃతΩϟογϡ Ωϟογϯά ͷछྨ
Ωϟογϯάͷछྨ Runtime Cache Page Server Worker Cache ϑΣον Ωϟογϡ ϦΫΤετ
Ϩεϙϯε
ϥϯλΠϜʢϦΫΤετͷδϟοΫ࣌ʣʹߦ ͏Ωϟογϡ `onfetch`ΠϕϯτͷதͰॲཧ͞ΕΔ ύε֦ுࢠʹΑͬͯΩϟογϡઓུ͕͔ ΕΔ Ωϟογϯάͷछྨ Runtime Cache
Ωϟογϯάͷछྨ Pre-cache Server Worker Cache Ωϟογϡ ϦΫΤετ Ϩεϙϯε
Ωϟογϯάͷछྨ Pre-cache Page Server Worker Cache postMessage Ωϟογϡ ϦΫΤετ Ϩεϙϯε
ϦΫΤετ͔Βಠཱͨ͠Ωϟογϡ ੩తϦιʔεΛ࠷ॳʹΩϟογϡ ಈతʹΩϟογϡ e.g. postMessage… Ωϟογϯάͷछྨ Pre-cache
࣮ࡍͷ։ൃʹ͓͍ͯɺύϑΥʔϚϯε্ʹ ͱͯॏཁ e.g. - ੩తϦιʔε(js, css, …etc.)Λ࠷ॳʹ - ϖʔδͷϦϯΫઌΛػతʹ -
HTTPͷ`Link`ϔομʹࡌ͍ͬͯΔαϒϦ ιʔεҰॹʹ Ωϟογϯάͷछྨ Pre-cache
- Offline mode - Update on reload - Bypass for
network - Preserve log - Switching frames - Hard reload ։ൃ࣌ͷTips
- Wi-FiΛΒͳͯ͘ΦϑϥΠϯΛΤϛϡϨʔτͰ͖Δ - 3GͳͲɺճઢͷ͞ௐઅͰ͖Δ - ApplicationλϒʹεΠον͕͋Δ ։ൃ࣌ͷTips Offline Mode
- Ϧϩʔυ࣌ʹຖճSWͷߋ৽Λڧ੍Ͱ͖Δ - εΫϦϓτΛ͍ͬͨ࣌͡oninstall/onactivateΠϕϯτͷڍಈΛݟͨ ͍࣌ʹ͏ - ʢSWͷߋ৽ʹ͍͔ʹ͕͔͔࣌ؒΔ͔͔Δʣ ։ൃ࣌ͷTips Update on
reload
- શͯͷϦΫΤετ͕SWΛܦ༝͠ͳ͘ͳΔ - SWͷ։ൃ࣌Ҏ֎ɺجຊతʹ͜ΕΛΦϯʹ͢Δ ։ൃ࣌ͷTips Bypass for network
- ϖʔδΛભҠͯ͠ϩά͕Γଓ͚Δ - Ϧϩʔυͯ͠SWΛߋ৽͢Δͱ͖ϩά͕ফ͑ͯ͠·͏ - ͪͳΈʹSWͷϩάʹPrefixΛ͚͓ͯ͘ͱɺSWͷϩά͚ͩΛϑΟ ϧλʔͰ͖Δ ։ൃ࣌ͷTips Preserve log
- ϖʔδʹଐ͢ΔϑϨʔϜΛΓସ͑ΒΕΔ - e.g. SW, WebWorker, iframe, …etc. - ࣮ࡍʹίϯιʔϧͰมΛࢀরͰ͖Δ
։ൃ࣌ͷTips Switching frames
- Hard reload (Cmd+Shift+R) - ͦͷNavigationͰߦΘΕΔશͯͷϦΫΤετ͕SWΛܦ༝͠ͳ͘ͳΔ - ٯʹීஈͷΫηͰHard Reload͢Δਓҙ ։ൃ࣌ͷTips
Hard reload
- Google WebFundamentals - ϥΠϑαΠΫϧ - Workerͷίϯτϩʔϧݖ - είʔϓ -
SWࣗମͷΩϟογϡ - NavigationPreload - Ωϟογϯάͷछྨ - ։ൃ࣌ͷTips ·ͱΊ
͋Γ͕ͱ͏͍͟͝·ͨ͠