Go製MVCアプリケーションのアーキテクチャを変更する

by inari111

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Go੡MVCΞϓϦέʔγϣϯͷ ΞʔΩςΫνϟΛมߋ͢Δ 2020.01.29 howtv.go - @inari111

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• ܊ ୓࠸ • Twitter: @inari111 • GitHub: @inari111 • Go / Layered Architecture / Protocol buffers • 2019.04~ hey (Coiney) • πέ෷͍ ࣗݾ঺հ

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ి࿩൪߸Λೖྗ SMSૹ৴ λοϓͯ͠ಉҙͰ πέ෷͍׬ྃ 2ϲ݄Ҏ಺ʹίϯϏχ౳Ͱࢧ෷͍

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• ࠓͷπέ෷͍ͷΞʔΩςΫνϟ • ࠓͷΞʔΩςΫνϟͷ໰୊఺ • ৽͍͠ΞʔΩςΫνϟ(Ծ) ࠓ೔࿩͢͜ͱ

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ϑϨʔϜϫʔΫ͸revelΛ࢖༻ app ᵓᴷᴷ client ᵓᴷᴷ controllers ᵓᴷᴷ library ᵓᴷᴷ models ᵓᴷᴷ routes ᵓᴷᴷ services ᵋᴷᴷ views ࠓͷΞʔΩςΫνϟ $POUSPMMFS 4FSWJDF .PEFM .PEFMͷؔ਺ݺͼग़͠ $MJFOU 4.4ૹ৴ ֎෦"1* ϏδωεϩδοΫ ӬଓԽॲཧ

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•ModelԼ͕ؔ਺ʹͳ͍ͬͯΔՕॴ͕ଟ͍ • ؔ਺໊͕௕͘ͳͬͯ͠·͏ • GetConsumerByPhoneNumber, UpdateSettlementToXXX… • ؔ਺ͳͷͰͲͷService͔ΒͰ΋ݺͼग़ͤͯ͠·͏ • mockԽ͕εϚʔτʹͰ͖ͳ͍ •Modelͷίʔυ͕ଟ͘ͳ͖ͬͯͨ •Model͕domain΍infraͷ໾ׂΛ୲͍ͬͯΔ •ӬଓԽͷॲཧͱυϝΠϯϩδοΫ͕෼཭Ͱ͖͍ͯͳ͍ ໰୊఺

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•ίʔυྔ͕૿͖͑ͯͯɺϝϯςͮ͠Β͍Օॴ͕ग़͖ͯͨ •υϝΠϯϩδοΫͱӬଓԽॲཧΛ෼͚Δ͜ͱͰؔ৺ࣄͷ෼཭ Λߦ͍͍ͨ ͳͥΞʔΩςΫνϟΛมߋ͍ͨ͠ͷ͔

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৽͍͠ ΞʔΩςΫνϟ(Ծ) $POUSPMMFS %PNBJO 4FSWJDF .PEFM 3FQPTJUPSZݺͼग़͠ $MJFOU 4.4ૹ৴ ֎෦"1* ϏδωεϩδοΫ 3FQPTJUPSZ*OUFSGBDF %#Ϟσϧ 3FQPTJUPSZ࣮૷ 2VFSZ4FSWJDF*OUFSGBDF 2VFSZ4FSWJDF࣮૷ ࢀরܥϞσϧ υϝΠϯϞσϧ

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• υϝΠϯϞσϧ • ϏδωεϩδοΫ • Repositoryͷinterface Domain $POUSPMMFS %PNBJO 4FSWJDF .PEFM 3FQPTJUPSZݺͼग़͠ ϏδωεϩδοΫ 3FQPTJUPSZ*OUFSGBDF %#Ϟσϧ 3FQPTJUPSZ࣮૷ 2VFSZ4FSWJDF*OUFSGBDF 2VFSZ4FSWJDF࣮૷ ࢀরܥϞσϧ υϝΠϯϞσϧ

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domain/consumer/repository.go

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services/consumer.go

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• DBϞσϧ • Repositoryͷ࣮૷ • υϝΠϯϞσϧ 㲗 DBϞσϧ • Query Serviceͷ࣮૷ Model $POUSPMMFS %PNBJO 4FSWJDF .PEFM 3FQPTJUPSZݺͼग़͠ ϏδωεϩδοΫ 3FQPTJUPSZ*OUFSGBDF %#Ϟσϧ 3FQPTJUPSZ࣮૷ 2VFSZ4FSWJDF*OUFSGBDF 2VFSZ4FSWJDF࣮૷ ࢀরܥϞσϧ υϝΠϯϞσϧ

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• ෳ਺ू໿ʹ·͕ͨΔσʔλΛऔಘ ͢ΔͨΊʹಋೖ • ServiceʹࢀরܥϞσϧɺ interfaceΛఆٛ • interfaceͷ࣮૷͸Modelʹஔ͘ Query Service $POUSPMMFS %PNBJO 4FSWJDF .PEFM 3FQPTJUPSZݺͼग़͠ ϏδωεϩδοΫ 3FQPTJUPSZ*OUFSGBDF %#Ϟσϧ 3FQPTJUPSZ࣮૷ 2VFSZ4FSWJDF*OUFSGBDF 2VFSZ4FSWJDF࣮૷ ࢀরܥϞσϧ υϝΠϯϞσϧ

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• ৽نػೳ௥ՃΛࢭΊͣʹ͍͍ײ͡ʹϦϑΝΫλΛਐΊ͍ͯ͘ʹ͸ • ෳ਺Repositoryʹ·͕ͨΔτϥϯβΫγϣϯ • ServiceͰτϥϯβΫγϣϯுΔ͔͠ͳ͍…ʁ • ίʔυྔ͕૿͑ͯ͘ΔͱMVCͩͱͭΒ͍…ͱࢥ͏ ೰Έ

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• RepositoryͷಋೖʹΑΓӬଓԽॲཧͱυϝΠϯϩδοΫ ͷ෼཭Λߦ͏͜ͱʹͨ͠ • Query ServiceΛ࡞੒ͯ͠ෳ਺ू໿ʹ·͕ͨΔσʔλΛ औಘ͢Δ͜ͱʹͨ͠ • DDD΍CQRSΛಋೖ͢Δ͜ͱ͕໨తͰ͸ͳ͍͕ɺ ΑΓ҆શͰϝϯς͠΍͍͢ίʔυΛ໨ࢦͨ݁͠Ռ ͜ΕΒΛऔΓೖΕ͍ͨͱࢥͬͨ ·ͱΊ