Kotlin MultiplatformでSaaS大規模アプリの生産性を向上させる技術的意思決定と導入効果を最大化するための取り組み

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Sansanגࣜձࣾ ෦ॺɹ໊લ Kotlin MultiplatformͰSaaSେن໛ΞϓϦͷ ੜ࢈ੑΛ޲্ͤ͞Δٕज़తҙࢥܾఆͱ ಋೖޮՌΛ࠷େԽ͢ΔͨΊͷऔΓ૊Έ iOSDC Japan 2024 Sansanגࣜձࣾ ٕज़ຊ෦ Mobileઓུάϧʔϓ ௕࡚ೋ࿠

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௕࡚ ೋ࿠ʢJiro Nagasaki) Sansanגࣜձࣾ ٕज़ຊ෦ Mobile ઓུ άϧʔϓ ϞόΠϧԣஅνʔϜͷiOSΤϯδχΞɻ ͜ͷηογϣϯͷςʔϚͰ͋ΔKMPಋೖͰ͸ ϑϨʔϜϫʔΫͳͲͷج൫ߏஙΛ୲౰͠·ͨ͠ɻ X(a.k.a.Twitter): @zeero

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3 ͸͡Ίʹ ࠓ೥ɺSansanͰ͸ੜ࢈ੑ޲্ͷͨΊʹ Kotlin Multiplatform (KMP) Λಋೖ͠·ͨ͠ KMPͱ͸ɺKotlinݴޠΛ࢖ͬͯϚϧνϓϥοτϑΥʔϜରԠͷ ΞϓϦέʔγϣϯΛ։ൃ͢ΔͨΊͷٕज़Ͱ͢ ͜ͷηογϣϯͰ͸ɺओʹKMPಋೖʹ͓͚Δ ӡ༻໘ʹ͍ͭͯεϙοτΛ౰͓ͯͯ࿩͠·͢

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- KMPಋೖܾఆ·Ͱ - KMPಋೖ - KMPಋೖޙ ΞδΣϯμ 4

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KMPಋೖܾఆ·Ͱ 5

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KMPಋೖͷഎܠ 2023೥౓OKRʢObjectives and Key Resultsʣ ୯݄ͷ։ൃੜ࢈ྔΛ̎ഒʹ͢Δ ϞόΠϧԣஅάϧʔϓɿٕज़తͳ؍఺͔ΒऔΓ૊ΈํΛݕ౼ KMPಋೖʹΑΔ։ൃޮ཰޲্ͷՄೳੑ 6

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ΞϓϦ։ൃʹ͓͚Δ৳ͼ୅ ཁ݅ ఆٛ ઃܭ ࣮૷ ςετ ϦϦ ʔε ઃܭ ࣮૷ ςετ ϦϦ ʔε ᶃ࡞ۀͷॏෳ ᶄ࣮૷ͷζϨ 7

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ιϦϡʔγϣϯͷݕ౼ 8 - ιϦϡʔγϣϯީิ - KMP - ReactNative - Flutter - KMPͷϝϦοτ - ڞ௨Խͷࣗ༝౓͕ߴ͍ - APIΞΫηεͷΈΛڞ௨Խ͢Δ͜ͱ΋ɺUIؚΊ͢΂ͯΛڞ௨ Խ͢Δ͜ͱ΋Ͱ͖Δ - طଘͱڞଘ͠ͳ͕Β෦෼తͳಋೖ΋͠΍͍͢ - KotlinͳͷͰAndroid։ൃͷٕज़ελοΫΛ׆͔ͤΔ https://www.jetbrains.com/ja-jp/kotlin-multiplatform/

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KMPͰͷڞ௨ԽൣғɺΞʔΩςΫνϟ 9 - UI͸ωΠςΟϒ࣮૷ɺ ϏδωεϩδοΫΛKMPͰ ڞ௨Խ - طଘAndroidͰ࠾༻͍ͯ͠ ͨFluxΛ࠾༻ - ϩʔΧϧϦιʔεʢDBɺ ϩάΠϯ৘ใͳͲʣ΁ͷΞ Ϋηε͸ɺKMPଆʹωΠ ςΟϒ࣮૷ΛDI - ϦϞʔτͷϦιʔε ʢAPIɺϩάͳͲʣ΁ͷΞ Ϋηε͸KMPͷ੹຿

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KMPಋೖʹΑΔޮՌͷࢼࢉ 10

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KMPಋೖܾఆ 11 ૊৫௕ iOS ΞʔΩςΫτ Android ΞʔΩςΫτ iOS/Android ΤϯδχΞ ݕ౼ ҙݟ ٵ্͍͛ ಋೖܾఆ Ծઃܭ ޮՌࢼࢉ ߏங޻਺ͷݟੵ

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KMPಋೖ 12

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KMPಋೖʹ͓͚Δΰʔϧ 13 - ΰʔϧɿϓϩμΫτ։ൃʹ͓͍ͯKMPΛ༻͍ͨ։ൃ͕ελϯ μʔυͱͳΔঢ়ଶ - ΞʔΩςΫνϟͳͲͷج൫ߏங͕׬ྃ͠ɺϓϩμΫτʹ૊Έ ࠐΊΔঢ়ଶʹͳΔ͜ͱ - ΤϯδχΞશһ͕KMPΛॻ͖ɾཧղͰ͖Δঢ়ଶʹͳΔ͜ͱ ʢʮKMPઐ໳νʔϜʯ͸ஔ͔ͳ͍ʣ - ཧ༝ɿKMPઐ໳νʔϜ͕ϘτϧωοΫͱͳͬͯ͠·͍։ ൃεϐʔυ͕஗ΕΔͳͲͷϦεΫΛආ͚ΔͨΊɻ ڭҭίετΛ෷ͬͯ΋ɺશһͰKMPʹ޲͖߹͍ͬͯ͘͜ ͱΛϚωδϝϯτϥΠϯؚΊ߹ҙͨ͠ɻ

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KMPಋೖʹ޲͚ͯͷλεΫ 14 - KMPج൫։ൃ - Fluxߏங - ϩάΠϯ৘ใͷڞ༗Խ - APIΞΫηε - DIߏங - iOS࿈ܞج൫ߏங - υΩϡϝϯτ੔උɹɹͳͲ - ϝϯόʔڭҭ - ΩϟονΞοϓ

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iOS࿈ܞج൫ 15 - KMPͱiOSͷ࿈ܞʹ͓͍ͯߟྀ͕ඞཁͳϙΠϯτ - KMPϥΠϒϥϦͷऔΓࠐΈํ - KMPͱͷI/FΛͲ͏ѻ͏͔

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KMPϥΠϒϥϦͷऔΓࠐΈํ 16

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KMPϥΠϒϥϦͷऔΓࠐΈํ 17

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KMPͱͷI/FΛͲ͏ѻ͏͔ 18

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KMPͱͷI/FΛͲ͏ѻ͏͔ 19

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υΩϡϝϯτ੔උ - iOS΁ͷέΞ 20 - KMPίʔσΟϯάن໿ ίʔσΟϯάن໿ͷྫ

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υΩϡϝϯτ੔උ - iOS΁ͷέΞ 21 - KMPίʔσΟϯάن໿ ίʔσΟϯάن໿ͷྫ̎

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υΩϡϝϯτ੔උ - iOS΁ͷέΞ 22 - KMP༻ޠू

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υΩϡϝϯτ੔උ - iOS΁ͷέΞ 23 - iOSΤϯδχΞ͕KotlinֶशͰ٧·ͬͨͱ͜ΖʢϙΤϜʣ

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ΩϟονΞοϓPJ 24 - ໨త - KMPΛ࢖ͬͯ࢓ࣄͱͯ͠։ൃ͍ͯ͘͠ࣄʹɺશһ͕ࣗ৴Λ͍࣋ͬͯΔঢ়ଶͱͳΔɻ - ͦͷͨΊʹɺݟੵ΋Γʙςετ·ͰͷҰ࿈ͷྲྀΕΛʮKMPͰॻ͘ʯલఏͰܦݧͨ͠ ঢ়ଶͱͳΔɻ - ໨ඪ - ࣮ࡍͷ։ൃͰߦ͏Ͱ͋Ζ͏ԼهΛ࣮ࢪͨ͠ঢ়ଶͱͳ͍ͬͯΔࣄɻ - ཁ݅֬ೝ&ݟੵ΋Γ - ܭը࡞੒ - ৄࡉઃܭ - ࣮૷ʢςετίʔυؚΉʣ - ίʔυϨϏϡʔ - ςετʢσόοάʣ

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ΩϟονΞοϓPJ 25

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։ൃԋश - ֓ཁ 26 - ظؒ - 2೔ؒʢશһΦϑϥΠϯʣ - ୊ࡐ - ԋश༻PBIΛ࣮૷ - ੍໿ - Լهͷ޻ఔΛߦ͏͜ͱ - ཁ݅֬ೝˍݟੵ - ܭը࡞੒ - ৄࡉઃܭ - ࣮૷ɺςετ - ίʔυϨϏϡʔΛؚΉ

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։ൃԋश - ౰೔ͷ༷ࢠ 27

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KMPಋೖޙ 28

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KMPಋೖޙʹ૊৫ମ੍มߋ 29

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- ٕज़తҙࢥܾఆ - ෳ਺ιϦϡʔγϣϯͷϝϦοτσϝϦοτΛݴޠԽ͠ൺֱ͢ Δ͜ͱͰɺ࣌ؒ͸͔͔Δ͕ΑΓଥ౰ੑͷߴ͍൑அ͕Ͱ͖ΔΑ ͏ʹͳΔ - ޮՌΛ࠷େԽ͢ΔऔΓ૊Έ - iOSΤϯδχΞ΋े෼ΩϟονΞοϓͰ͖ΔΑ͏υΩϡϝϯ τΛ੔උ͠ɺΩϟονΞοϓPJͰશһ͕KMPʹ޲͖߹͍ɺ ͦΕʹ͋Θͤͨ૊৫ͷܗʹม͑ΔࣄͰɺKMPಋೖͷ੒ՌΛ࠷ େԽͰ͖ΔΑ͏ʹͳΔ ·ͱΊ 30

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- ࣗ༝౓ͷߴ͞͸ັྗͰɺࢥ͍ඳ͍ͨΞʔΩςΫνϟΛߏங͢Δ͜ͱ͕ Ͱ͖ͨ - iOSΤϯδχΞʹͱͬͯͷϋʔυϧ͸Ұఆ͋Δ - Kotlin֮͑Δඞཁ͕͋ΔͷͰɺυΩϡϝϯτ΍ڭҭମ੍੔͑Δͳ Ͳɺ૊৫ϨϕϧͰͷαϙʔτ͕େࣄ - Objective-Cʹม׵͞ΕΔ͜ͱͷͭΒΈ - Swift ௚઀ม׵͕ KMPͷϩʔυϚοϓ ʹ৐͍ͬͯΔͷͰظ଴ - શһ͕KMPΛॻ͚ΔΑ͏ʹͳΔ͜ͱͷϝϦοτ͸େ͖͔ͬͨ - શһͰ࢓༷΍ઃܭΛٞ࿦͢Δૉ஍͕Ͱ͖ͨ - iOS/AndroidͷϓϥοτϑΥʔϜΛ·͙ͨӽڥ͕͠΍͘͢ͳͬͨ KMPʹର͢Δॴײ 31

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© Sansan, Inc. ಇ͖ํΛม͑ΔDXαʔϏε ఏڙαʔϏε ੥ٻ ਓ΍اۀͱͷग़ձ͍ΛϏδωενϟϯεʹͭͳ͛Δʮಇ͖ํΛม͑ΔDXαʔϏεʯΛఏڙ  Ϗδωεϑϩʔʹ͓͚Δ͞·͟·ͳ෼໺ͰαʔϏεΛల։ Ӧۀ ӦۀDX ܖ໿ ܖ໿DX ܦཧDX ๏ਓ޲͚%9 ඞཁͳ৘ใΛ ͙͢ʹݟ͚ͭΒΕΔ ৘ใͷ؅ཧ͕͠΍͘͢ ͙͢ʹڞ༗Ͱ͖Δ ৘ใΛ෼ੳɾ׆༻͠΍͘͢ σʔλʹج͍ͮͨ൑அ͕Ͱ͖Δ SansanͷDXαʔϏεͷ׆༻ͰมΘΔಇ͖ํ ໊ࢗ؅ཧ ໊ࢗDX ݸਓ޲͚%9

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Sansanגࣜձࣾ iOSΤϯδχΞ࠾༻৘ใ https://media.sansan-engineering.com/ios-engineer 39