Server Side Swift 実践レポート: 2024年に案件で採用して見えた課題と可能性

iPhone Dev Sapporo — February 2, 2025
https://devsap.connpass.com/event/342118/

Transcript

1. iPhone Dev Sapporo / 2025-02-02 iPhone Dev Sapporo Server Side Swift ࣮ફϨϙʔτ 2024೥ʹҊ݅Ͱ࠾༻ͯ͠ݟ͑ͨ՝୊ͱՄೳੑ 2025-02-02
2. iPhone Dev Sapporo / 2025-02-02 ࣗݾ঺հ ੁݪ ༞ – X : @yusuga_ – mixi2 : @yusuga – ߹ಉձࣾϐίε: ୅දࣾһ – גࣜձࣾΏΊΈ: iOS ςοΫϦʔυ –
3. iPhone Dev Sapporo / 2025-02-02 Server Side Swift ͱ͸ Swift ݴޠ͸ Linux Λαϙʔτ͍ͯ͠Δ – ͭ·ΓɺLinux ্ͰͷίϯύΠϧɺ࣮ߦɺ։ ൃ͕ՄೳͰ͋ΓɺLinux Ͱಈ࡞͢Δαʔόʔ αΠυΞϓϦέʔγϣϯ΍ίϚϯυϥΠϯ πʔϧΛੜ੒Ͱ͖Δ –
4. iPhone Dev Sapporo / 2025-02-02 Server Side Swift ͱ͸ Server Side Swift Ͱ API αʔόʔΛ։ൃ͢Δͱ͍ ͏͜ͱ͸ɺLinux ্Ͱ API αʔόʔͱͯ͠ಈ࡞͢Δ ࣮ߦՄೳϑΝΠϧΛੜ੒͢Δ͜ͱΛࢦ͢ – 1 macOS Ͱಈ࡞͢Δ࣮ߦՄೳϑΝΠϧΛੜ੒͢Δ͜ͱ΋ՄೳͰ͕͢ɺαʔόͰಈ͔͢ࡍʹ macOS ͷΠϯελϯε͕ߴ ͘ɺDocker ্ʹߏஙͰ͖ͳ͍ͳͲͷσϝϦοτ͕͋ΔͨΊɺΘ͟Θ͟ macOS Λબ୒͢Δέʔε͸গͳ͍ͱࢥΘΕ· ͢ 1.
5. iPhone Dev Sapporo / 2025-02-02 Α͋͘Δ࣭໰
6. iPhone Dev Sapporo / 2025-02-02 Q. Server Side Swift ͬͯ୭͕࢖͍ͬͯ Δͷʁ
7. iPhone Dev Sapporo / 2025-02-02 Q. Server Side Swift ͬͯ୭͕࢖͍ͬͯ Δͷʁ A. ୭΋࢖͍ͬͯ·ͤΜʂʂʂʢաݴʣ
8. iPhone Dev Sapporo / 2025-02-02 Q. Server Side Swift ͬͯ୭͕࢖͍ͬͯΔͷʁ 2015 ೥ʹ Swift ͕ OSS ͰϦϦʔε͞Εͯɺ2016 ೥ʹ IBM ͕ Kitura ΛϦϦʔεͯ͠࿩୊ʹͳ͍ͬͯͨ – 2020 ೥ʹ IBM ʹΑΔ Kitura ͷ։ൃΛऴྃ͠ɺͦͷ ޙͷ։ൃ͸ OSS ͕ओಋ – ୭΋࢖͍ͬͯͳ͍͸աݴ͔΋Ͱ͕͢ɺ࠷ۙͷ࠾༻ࣄྫ ΋΄ͱΜͲฉ͔ͳ͘ͳͬͨͷͰɺ2025 ೥ 2 ݄࣌఺Ͱ ͸ྲྀߦ͍ͬͯΔͱ͸ݴ͑ͳ͍ঢ়گ –
9. iPhone Dev Sapporo / 2025-02-02 Q. Server Side Swift ͬͯ୭͕࢖͍ͬͯΔͷʁ ެʹΘ͔͍ͬͯΔେن໛ͳ࠾༻ࣄྫ͸ Amazon Prime Video – Amazon ࣾ੡ͷ Λ࢖༻͍ͯ͠Δ – smoke-framework 1 2024 ೥ʹ v3.0.0 ͕ϦϦʔε͞Ε͍ͯΔͨΊɺ·ͩ ࢖༻͞Ε͍ͯΔͱਪ࡯Ͱ͖Δ – The SmokeFramework has been written and is maintained by a team within PrimeVideo at Amazon. This framework allows us to run a number of micro services written in Swift on ECS/Fargate. 1.
10. iPhone Dev Sapporo / 2025-02-02 Q. Server Side Swift ͬͯ୭͕࢖͍ͬͯΔͷʁ ΧϯϑΝϨϯε͸։࠵͞Ε͍ͯΔ –
11. iPhone Dev Sapporo / 2025-02-02 Q. αʔόΛ Swift Ͱ࡞Δҙຯ͋Δͷʁ
12. iPhone Dev Sapporo / 2025-02-02 Q. αʔόΛ Swift Ͱ࡞Δҙຯ͋Δͷʁ A. ҙຯ͸ͳ͍Ͱ͢ʂʂʂʢաݴʣ
13. iPhone Dev Sapporo / 2025-02-02 Q. αʔόΛ Swift Ͱ࡞Δҙຯ͋Δͷʁ TypeScriptʢNode.jsʣ, Ruby, PHP, Go ͳͲɺ ͢Ͱʹαʔό։ൃͱ࣮ͯ͠੷͕͋Δ΋ͷ͕ଟ͘ ଘࡏ͢ΔͷʹɺΘ͟Θ͟ Swift Λબ୒͢Δҙຯ ͸ͳ͍Ͱ͢ʂ – ྫ͑͹ޙൃͷ Rust ͕αʔό։ൃͰ͋·Γීٴ ͍ͯ͠ͳ͍ײ͡ʹࣅ͍ͯΔͷ͔΋͠Ε·ͤΜ –
14. iPhone Dev Sapporo / 2025-02-02 Q. Swift ͩͱύϑΥʔϚϯε͕͍͍ɺ ίʔϧυελʔτ͕࣌ؒ୹͍ɺϝϞϦ҆ શɺܕ҆શɺNull ҆શͱ͔ϝϦοτ͋Δ ͔Β͍͍Μ͡Όͳ͍ʁ1 ΠϯλϓϦλͳ͠ɺJIT ͳ͠ɺGC ͳ͠ 1.
15. iPhone Dev Sapporo / 2025-02-02 Q. Swift ͩͱύϑΥʔϚϯε͕͍͍ɺ ίʔϧυελʔτ͕࣌ؒ୹͍ɺϝϞϦ҆ શɺܕ҆શɺNull ҆શͱ͔ϝϦοτ͋Δ ͔Β͍͍Μ͡Όͳ͍ʁ A. ͦΕΛ௒͑ΔσϝϦοτ͕ଟ͍Ͱ ͢ʂʂʂ
16. iPhone Dev Sapporo / 2025-02-02 Server Side Swift ͷσϝϦοτ ଞݴޠͱൺֱͯ͠ѹ౗తʹ։ൃऀਓޱ͕গͳ͍ – ࠾༻͍ͯ͠Δձ͕ࣾͳ͍ͷͰҾ͖ܧ͕͗ࠔ೉ – ΤίγεςϜ͕ൃల్্ – ϚΠφʔͳͷͰ SDK ͕ͳ͍͜ͱ͕ଟ͍ – Ϗϧυ͕࣌ؒಛʹ͔͔Δ –
17. iPhone Dev Sapporo / 2025-02-02 Q. ͳͥ Server Side Swift Λ΍Δͷʁ
18. iPhone Dev Sapporo / 2025-02-02 Q. ͳͥ Server Side Swift Λ΍Δͷʁ A. ΍Γ͍͔ͨΒͰ͢ʂʂʂ
19. iPhone Dev Sapporo / 2025-02-02 Server Side Swift ͷڧ͍ͯ͋͛ΒΕΔϝϦοτ ϑϩϯτΤϯυͱόοΫΤϯυͷ྆ํΛಉҰݴޠͷ Swift Ͱॻ͘͜ͱͰશମͷ։ൃޮ཰Λ্͕Δ͜ͱΛظ଴ – ʢ։ൃऀͷ਺͕શવҧ͍·͕͢ʣNode.js Λ࠾༻͢Δϝ Ϧοτͱಉ༷ – swift-openapi-generator Ͱͷίʔυੜ੒΍ɺڞ௨ͷఆٛΛ ϥΠϒϥϦԽ͢Δ͜ͱͰಉҰͷఆٛΛ࢖༻Մೳ – ಛʹαʔόଆ͕ Null ҆શͰ͸ͳ͍ݴޠͩͱۤ࿑͢Δ͜ ͱ΋ଟ͍ –
20. iPhone Dev Sapporo / 2025-02-02 Q. ͳͥ Server Side Swift Λ΍Δͷʁ ݸਓతͳཧ༝ͱͯ͠͸ɺSwift ͳΒݎ࿚Ͱอ कੑ͕ߴ͘ɺόά͕গͳ͍ϓϩμΫτΛ࡞Ε Δͱ৴͍ͯ͡Δ͔ΒͰ͢ʂ – 1 ଞݴޠͱͷൺֱͱ͔༏ྼͷ࿩Ͱ͸ͳ͍Ͱ͢ 1.
21. iPhone Dev Sapporo / 2025-02-02 ։ൃํ๏
22. iPhone Dev Sapporo / 2025-02-02 ։ൃํ๏ ௨ৗͷ iOS ։ൃͱಉ༷ʹ Xcode Λ࢖༻ͯ͠ɺ λʔήοτΛ macOS ʹ࣮ͯ͠ߦՄೳͳόΠφ ϦΛੜ੒ʢexecutableTargetʣ͠·͢ – ୤ .xcodeproj – Package.swift Ͱ։ൃ – VSCode Ͱ΋։ൃՄೳ –
23. iPhone Dev Sapporo / 2025-02-02 ։ൃํ๏ UI ࣮૷͔Βղ์͞ΕΔ – ը໘͕ͳ͍ͷͰ iOS ։ൃ͔Β SwiftUI / UIKit ͷ࣮૷͕ͳ͘ͳͬ ͯɺϏδωεϩδοΫ͚ͩΛ࣮૷͢ ΔΠϝʔδ –
24. iPhone Dev Sapporo / 2025-02-02 ։ൃํ๏ iOS ͷόʔδϣϯΞοϓରԠ͔Βղ์͞ΕΔ – Linux Ͱಈ͔͢ͷͰ iOS ʹґଘ͍ͯ͠ͳ͍ – Swift ͷόʔδϣϯͷΈҙࣝ͢Δ – Vapor ͱ͍͏ Server Side Swift Λߏங͢ΔϑϨʔϜ ϫʔΫΛ࢖༻͢Δ͜ͱͰɺશମͷઃܭʢιϑτ΢ΣΞ ΞʔΩςΫνϟʣ͕͢Ͱʹఆ·͍ͬͯΔঢ়ଶ͔Βε λʔτ͢ΔͷͰɺΤϯυϙΠϯτͷ࣮૷ʹूதͰ͖Δ –
25. iPhone Dev Sapporo / 2025-02-02 Vapor ͱ͸ ಡΈํ: ἖͍͐ͺʔɺ΂ʔͺʔ – 2016 ೥ 1 ݄͔Β։ൃ͞Ε͍ͯΔ Server Side Swift Λߏங͢ΔϑϨʔϜϫʔΫ – IBM ͷ Kitura ͱಉ࣌ظ – Swift ConcurrencyɺSwift Testing ͳͲ৽͍͠ػ ೳ΋͔ͬ͠Γαϙʔτ͞Ε͍ͯΔ –
26. iPhone Dev Sapporo / 2025-02-02 Vapor ͱ͸ ͦͷଞͷީิ ϥΠϒϥϦ ঢ়گ Kitura IBM ͕։ൃऴྃͨ͠ޙ͸ɺOSS ͷίϛϡχςΟͰϝϯς͞ΕͯΔ Perfect 2019 ೥ࠒҎ߱͸େ͖ͳΞοϓσʔτ͕ݟΒΕͳ͍ Smoke Amazon ࣾ੡ɺPrime Video Ͱ࠾༻ Hummingbird Vapor ͱಉ༷ʹ 2024 ೥࣌఺Ͱ΋։ൃ͕׆ൃͳܰྔͳϑϨʔϜϫʔΫ
27. iPhone Dev Sapporo / 2025-02-02 Vapor ͱ͸ 2024 ೥຤࣌఺Ͱ͸ Vapor, Hummingbird, Smoke ͷ͕̏ͭ༗ྗީิ – ࠷΋पลϥΠϒϥϦ͕ॆ࣮͍ͯͨ͠ Vapor Λ࠾༻ʂ –
28. iPhone Dev Sapporo / 2025-02-02 ։ൃ࣮੷
29. iPhone Dev Sapporo / 2025-02-02 2024 ೥຤ʹ࣮ࡍʹ։ൃ࣮ͨ͠੷ ޻਺͸2ਓ݄ఔ౓ – BFF (Backend for Frontend) ͱͯ͠ઃܭͨ͠ API αʔό Ͱɺ8 ͭͷΤϯυ ϙΠϯτΛఏڙ – BFF ͔Β͸ 4 ͭͷόοΫΤϯυαʔϏεͱ API ࿈ܞ – OAuthʢAuth0ʣ, Basic ೝূ – ΞφϦςΟΫεʢDataDogʣ – swift-openapi-generator Ͱ Client ͱ Server ͷίʔυΛੜ੒ – DB ͳ͠ – AWS Fargate ্ͷ Docker ίϯςφͰಈ࡞ –
30. iPhone Dev Sapporo / 2025-02-02 ྑ͔ͬͨͱ͜Ζͱ ಘΒΕͨ஌ݟ
31. iPhone Dev Sapporo / 2025-02-02 Linux Ͱಈ࡞Մೳ Docker ͕࢖༻Մೳ – CI Ͱ Linux Πϯελϯεʢ͍҆ʂʣ͕ ࢖༻Ͱ͖Δ –
32. iPhone Dev Sapporo / 2025-02-02 εςʔτϨε͔ͭɺ෭࡞༻Λ࣋ͨͳ͍ߏ଄͕ڧ੍͞ Εɺઃܭํ਑͕໌֬ʹͳΔ API ͸ҟͳΔϢʔβ͔ΒϦΫΤετ͞ΕΔͨΊɺҟ ͳΔϦΫΤετؒͰঢ়ଶΛڞ༗͢Δ΂͖Ͱ͸ͳ͍ ͷͰඞͣεςʔτϨεʢΦϯϝϞϦͷϓϩύςΟ Λ࣋ͨͳ͍ʣʹ͠ɺ෭࡞༻ʢ֎෦ͷϓϩύςΟʹ Αͬͯಈ࡞͕มΘΔʣ͕ͳ͍Α͏ʹ͢Δඞཁ͕͋ Δ –
33. iPhone Dev Sapporo / 2025-02-02 ݺٵΛ͢ΔΑ͏ʹ Unit Tests Λॻ͘ ಈ࡞֬ೝΛ౎౓ curl Λ͢Δͷ͸खؒ͗͢Δͷ Ͱɺࣗવͱಈ࡞֬ೝ == Unit Tests ͱͳΔ – ͦͷ݁ՌɺςετΛؤுͬͯॻ͜͏ͱҙࣝ͸͠ ͍ͯͳ͔͚ͬͨͲɺೲ඼࣌ͷίʔυΧόϨοδ ͸ 88% ͩͬͨ – 1 αʔόͷํʹฉ͍ͨΒଞݴޠͩͱ 60 % ͘Β͍ͱ͍͏ҰྫΛฉ͖·ͨ͠ʢ※΋ͪΖΜਓͱ؀ڥʹΑΔʣ 1.
34. iPhone Dev Sapporo / 2025-02-02 Vapor ͷ Middleware ͷઃܭ͕ૉ੖Β͠ ͘ɺ֤ϩδοΫΛૄ݁߹ʹ͠΍͍͢ Middleware ͸֤ϦΫΤετͷ௚લͱ ௚ޙʹԿΒ͔ͷॲཧΛૠೖͰ͖ΔΠ ϝʔδ –
35. iPhone Dev Sapporo / 2025-02-02 ྫ: Vapor Ͱ API ϦΫΤετΛॲཧ͢ΔྲྀΕ ࣮ߦॱ ϨΠϠʔ ॲཧ಺༰ 1 Middleware OAuth ͷೝূೝՄΛ֬ೝ 2 Middleware ΤϯυϙΠϯτͷॲཧʹඞཁͳґଘΛ DI ͢Δ 3 Controller ΤϯυϙΠϯτͷ࣮૷ 4 Middleware ϩάΛऔΔ 5 Middleware throw ͞ΕͨΤϥʔΛΤϥʔϨεϙϯεʹม׵͢Δ 1 OAuth ͕ෆཁͳ৔߹͸ɺಛఆͷΤϯυϙΠϯτͷΈ OAuth ͷ Middleware Λద༻͠ͳ͍Α͏ରԠ 1.
36. iPhone Dev Sapporo / 2025-02-02 API ϦΫΤετΛड͚Δଆͷؾ͕࣋ͪΘ͔ͬͨ ྫ͑͹ɺOAuth Λ࢖ͬͨϦΫΤετͰΫϥΠΞϯ τ͕ access_token Λ෇༩ͨ͠৔߹ɺͦΕॲཧ͢Δ αʔόଆͷೝূɾೝՄͷ࢓૊Έ͕۩ମతʹΘ͔ ΓɺAPI ϦΫΤετΛॲཧ͢ΔྲྀΕͷղ૾౓্͕ ͕ͬͨ – ࣗ෼͕े෼ʹ஌͍ͬͯΔݴޠͰ࣮ࡍʹ࣮૷ͯ͠ಘ ΒΕΔ஌ݟ͸େ͖͍ –
37. iPhone Dev Sapporo / 2025-02-02 ۤ࿑ͨ͠ͱ͜Ζ
38. iPhone Dev Sapporo / 2025-02-02 Foundation framework ͷࠩ෼͕͋Δ iOS ΍ macOS ։ൃͰ࢖༻͍ͯ͠Δ Foundation framework ͸ Objective-C ϥϯλΠϜʹґଘ͍ͯ͠ Δ෦෼͕͋ΔͨΊ Linux Ͱ͸࢖༻͕Ͱ͖ͳ͍ – ͦͷͨΊ Linux Ͱ͸ OSS ͷ swift-corelibs- foundation Λ࢖༻͞ΕΔ͕ɺҰ෦·ͩະ࣮૷ͷ API ͕͋Δ –
39. iPhone Dev Sapporo / 2025-02-02 Foundation framework ͷࠩ෼͕͋Δ swift-corelibs-foundation ͸ Foundation ͱಉ໊͡લۭؒΛ ͍࣋ͬͯΔͷͰ macOS Ͱ։ൃ͍ͯ͠Δ࣌ʹ͸ಛʹҙࣝ͸ ͠ͳͯ͘ࡁΉ – ͨͩ͠ɺޡͬͯ swift-corelibs-foundation Ͱ࣮૷͞Ε͍ͯ ͳ͍ API Λ࢖༻͍ͯ͠Δͱ Linux ͰϏϧυΤϥʔʹͳΔͷ Ͱɺ஫ҙ͢Δඞཁ͕͋Δ – macOS ͩͱ Foundation ͕࢖ΘΕΔͷͰϏϧυ͕௨Δͷ Ͱؾ෇͖ͮΒ͍ –
40. iPhone Dev Sapporo / 2025-02-02 Foundation framework ͷࠩ෼͕͋Δ ۩ମతʹࠔͬͨҰྫͱͯ͠ String Catalog ͕࢖༻Ͱ͖ ͳ͔ͬͨ – ݪҼ͸ swift-corelibs-foundation ʹ LocalizedStringResource ͷఆ͕ٛͳ͍ͨΊ – SwiftUI ͱͷ݁ͼ͖͕ͭڧ͍ API Ͱ͕͢ɺ࢓૊Έ্ ͸ LocalizedStringResource ͕͋Ε͹ಈ͔ͤΔ͸ͣ – ࠷ऴతʹ͸ Localizable.strings Λ࢖༻ͨ͠ –
41. iPhone Dev Sapporo / 2025-02-02 ΤϥʔϋϯυϦϯάपΓͷઃܭʹۤ࿑ αʔόͰ͸࠷ऴతʹ੒ޭͳΒ 200, 300ܥɺΤϥʔͳΒ400, 500 ܥΛϨεϙϯεͰฦ͢ – ΤϥʔΛ catch ͯ͠ 400, 500ܥʹϨεϙϯεʹม׵͢Δඞཁ ͕͋Δ – Vapor ͷΤϥʔϋϯυϦϯάͱɺswift-openapi-generator ͷΤ ϥʔϋϯυϦϯάͷ͕̎ͭ͋ΓɺͲͷํ๏Λ૊Έ߹ΘͤΔͷ͕ ϕετͳͷ͔Λ໛ࡧ͕͔͔ͯ࣌ؒͬͨ͠ – ࣗ෼ͷதͰͷϕετϓϥΫςΟε͸Ͱ͖ͨͷͰهࣄʹ͠·͢ –
42. iPhone Dev Sapporo / 2025-02-02 ͦͷଞ ΠϯϑϥपΓͷߏங͸ API αʔόͱ͸ҟͳΔ஌͕ࣝ͞Βʹඞཁ – Terraform, IAM, Route 53, ECS, Fargate... – ϩάग़ྗͷϑΥʔϚοτɺ؀ڥม਺ͷ؅ཧͳͲαʔόͱͯ͠ͷ ϕετϓϥΫςΟε͕͋Δ – Ϗϧυ͕͔͔࣌ؒΔ – ಈతܕ෇͚ݴޠ vs ੩తܕ෇͚ݴޠͱߟ͑ͨͱ͖ʹҰ֓ʹϏ ϧυ͕͔͔࣌ؒΔ͜ͱ͸ѱͰ͸ͳ͍͕ɺϦϦʔεʹ͕͔࣌ؒ ͔Δͷ͸ετϨεΛײ͡Δγʔϯ͸͋Δ –
43. iPhone Dev Sapporo / 2025-02-02 ղফͨ͠ෆ҆
44. iPhone Dev Sapporo / 2025-02-02 ղফͨ͠ෆ҆ Server Side Swift ͸ Go ͳͲͷίϯύΠϧ͢Δݴޠͱ ಉ༷ʹωΠςΟϒίʔυͰ࣮ߦͰ͖Δ࣮ߦՄೳϑΝΠ ϧΛੜ੒ͯ͠ɺͦΕΛಈ͔͚ͩ͢ͳͷͰɺSwift Λಈ͔ ͨ͢ΊʹԿ͔ಛघͳ؀ڥΛ༻ҙ͢ΔΘ͚Ͱ͸ͳ͘Ұൠ తͳ Linux ্Ͱಈ͔͢͜ͱ͕Մೳ – 1 Swift ϥϯλΠϜ͸Ϗϧυ࣌ʹ --static-swift-stdlib Ͱ੩తϦϯΫ͍ͯ͠ΔͷͰɺ୯Ұͷ࣮ߦՄೳϑΝΠϧΛ ubuntu Ͱಈ ͔͍ͤͯ·͢ 1.
45. iPhone Dev Sapporo / 2025-02-02 ղফͨ͠ෆ҆ ௨ৗͷ API αʔόΛ࣮૷͢ΔͨΊʹඞཁͳ΋ͷ͸Ұ௨ Γἧ͍ͬͯΔͷͰɺࠓճ͘Β͍ͷཁ݅Ͱͷ࣮૷ͰࠔΔ ͜ͱ͸΄ͱΜͲͳ͔ͬͨʂ – ORM: PostgreSQL, MySQL, SQLite, MongoDB – Redis – JWT – Crypto –
46. iPhone Dev Sapporo / 2025-02-02 ࠓޙͷ՝୊
47. iPhone Dev Sapporo / 2025-02-02 ؅ཧը໘ͷ࡞੒ ؅ཧը໘ͷ࡞੒͸ Vapor ͸௚઀αϙʔτ͍ͯ͠ ͳ͍ – Vapor ͷυΩϡϝϯτʹ͸ Leaf ͱ͍͏ςϯϓ ϨʔτݴޠΛ࢖͏͜ͱͰಈతͳ HTML ϖʔδΛ ੜ੒͢Δํ๏͕Ҋ಺͞Ε͍ͯΔ – ·ͩࢼ͍ͯ͠ͳ͍ͷͰࠓ౓৮ͬͯΈΔ –
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