Go製MVCアプリケーションのアーキテクチャを変更する

1. Go੡MVCΞϓϦέʔγϣϯͷ ΞʔΩςΫνϟΛมߋ͢Δ 2020.01.29 howtv.go - @inari111
2. • ܊ ୓࠸ • Twitter: @inari111 • GitHub: @inari111 • Go / Layered Architecture / Protocol buffers • 2019.04~ hey (Coiney) • πέ෷͍ ࣗݾ঺հ
4. ి࿩൪߸Λೖྗ SMSૹ৴ λοϓͯ͠ಉҙͰ πέ෷͍׬ྃ 2ϲ݄Ҏ಺ʹίϯϏχ౳Ͱࢧ෷͍
5. • ࠓͷπέ෷͍ͷΞʔΩςΫνϟ • ࠓͷΞʔΩςΫνϟͷ໰୊఺ • ৽͍͠ΞʔΩςΫνϟ(Ծ) ࠓ೔࿩͢͜ͱ
6. 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
7. •ModelԼ͕ؔ਺ʹͳ͍ͬͯΔՕॴ͕ଟ͍ • ؔ਺໊͕௕͘ͳͬͯ͠·͏ • GetConsumerByPhoneNumber, UpdateSettlementToXXX… • ؔ਺ͳͷͰͲͷService͔ΒͰ΋ݺͼग़ͤͯ͠·͏ • mockԽ͕εϚʔτʹͰ͖ͳ͍ •Modelͷίʔυ͕ଟ͘ͳ͖ͬͯͨ •Model͕domain΍infraͷ໾ׂΛ୲͍ͬͯΔ •ӬଓԽͷॲཧͱυϝΠϯϩδοΫ͕෼཭Ͱ͖͍ͯͳ͍ ໰୊఺
8. •ίʔυྔ͕૿͖͑ͯͯɺϝϯςͮ͠Β͍Օॴ͕ग़͖ͯͨ •υϝΠϯϩδοΫͱӬଓԽॲཧΛ෼͚Δ͜ͱͰؔ৺ࣄͷ෼཭ Λߦ͍͍ͨ ͳͥΞʔΩςΫνϟΛมߋ͍ͨ͠ͷ͔
9. ৽͍͠ ΞʔΩςΫνϟ(Ծ) $POUSPMMFS %PNBJO 4FSWJDF .PEFM 3FQPTJUPSZݺͼग़͠ $MJFOU 4.4ૹ৴ ֎෦"1* ϏδωεϩδοΫ 3FQPTJUPSZ
   *OUFSGBDF %#Ϟσϧ 3FQPTJUPSZ
   ࣮૷ 2VFSZ
   4FSWJDF
   *OUFSGBDF 2VFSZ
   4FSWJDF
   ࣮૷ ࢀরܥϞσϧ υϝΠϯϞσϧ
10. • υϝΠϯϞσϧ • ϏδωεϩδοΫ • Repositoryͷinterface Domain $POUSPMMFS %PNBJO 4FSWJDF .PEFM 3FQPTJUPSZݺͼग़͠ ϏδωεϩδοΫ 3FQPTJUPSZ
    *OUFSGBDF %#Ϟσϧ 3FQPTJUPSZ
    ࣮૷ 2VFSZ
    4FSWJDF
    *OUFSGBDF 2VFSZ
    4FSWJDF
    ࣮૷ ࢀরܥϞσϧ υϝΠϯϞσϧ
11. domain/consumer/repository.go
12. services/consumer.go
13. • DBϞσϧ • Repositoryͷ࣮૷ • υϝΠϯϞσϧ 㲗 DBϞσϧ • Query Serviceͷ࣮૷ Model $POUSPMMFS %PNBJO 4FSWJDF .PEFM 3FQPTJUPSZݺͼग़͠ ϏδωεϩδοΫ 3FQPTJUPSZ
    *OUFSGBDF %#Ϟσϧ 3FQPTJUPSZ
    ࣮૷ 2VFSZ
    4FSWJDF*OUFSGBDF 2VFSZ
    4FSWJDF
    ࣮૷ ࢀরܥϞσϧ υϝΠϯϞσϧ
14. • ෳ਺ू໿ʹ·͕ͨΔσʔλΛऔಘ ͢ΔͨΊʹಋೖ • ServiceʹࢀরܥϞσϧɺ interfaceΛఆٛ • interfaceͷ࣮૷͸Modelʹஔ͘ Query Service $POUSPMMFS %PNBJO 4FSWJDF .PEFM 3FQPTJUPSZݺͼग़͠ ϏδωεϩδοΫ 3FQPTJUPSZ
    *OUFSGBDF %#Ϟσϧ 3FQPTJUPSZ
    ࣮૷ 2VFSZ
    4FSWJDF
    *OUFSGBDF 2VFSZ
    4FSWJDF
    ࣮૷ ࢀরܥϞσϧ υϝΠϯϞσϧ
15. • ৽نػೳ௥ՃΛࢭΊͣʹ͍͍ײ͡ʹϦϑΝΫλΛਐΊ͍ͯ͘ʹ͸ • ෳ਺Repositoryʹ·͕ͨΔτϥϯβΫγϣϯ • ServiceͰτϥϯβΫγϣϯுΔ͔͠ͳ͍…ʁ • ίʔυྔ͕૿͑ͯ͘ΔͱMVCͩͱͭΒ͍…ͱࢥ͏ ೰Έ
16. • RepositoryͷಋೖʹΑΓӬଓԽॲཧͱυϝΠϯϩδοΫ ͷ෼཭Λߦ͏͜ͱʹͨ͠ • Query ServiceΛ࡞੒ͯ͠ෳ਺ू໿ʹ·͕ͨΔσʔλΛ औಘ͢Δ͜ͱʹͨ͠ • DDD΍CQRSΛಋೖ͢Δ͜ͱ͕໨తͰ͸ͳ͍͕ɺ ΑΓ҆શͰϝϯς͠΍͍͢ίʔυΛ໨ࢦͨ݁͠Ռ ͜ΕΒΛऔΓೖΕ͍ͨͱࢥͬͨ ·ͱΊ