bitkey流DDD活用術 〜なぜDDD?なにを活かしてどこを壊すのか〜

Transcript

1. ϏοτΩʔྲྀDDD׆༻ज़
   ʙͳͥ%%% ͳʹΛ׆͔ͯ͠Ͳ͜Λյ͢ͷ͔ʙ
   

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2. ࠤ౻ ୓ਓ
   Sato Takuto
   2015.04
   2019.05
   2020.01
   େֶ(ݐஙֶઐ߈)ଔۀޙɺ
   גࣜձࣾϫʔΫεΞϓϦέʔγϣϯζʹೖࣾ
   ձܭγεςϜͷιϑτ΢ΣΞ։ൃΛ୲౰
   ಛʹࡒ຿ձܭͷ࢓༁ؔ࿈
   ϏοτΩʔ΁ࢀը
   ECαΠτͷ։ൃ / อकɺࣾ಺γεςϜͷ։ൃ
   TaKuTyͷ։ൃ
   ࠓͷHomeͷલ਎ͱͳΔResidenceνʔϜʹ഑ଐ
   bitlockΛѻ͏؅ཧը໘΍όοΫΤϯυɺappͷ։ൃ
   ʹैࣄ
   2022.07 HomeϓϩμΫτͷٕज़੹೚ऀ
   ෳࡶͳࣄ৅ΛಡΈղ͍ͯߏ଄Խ͠ɺந৅Խ / ൚༻Խ
   Ͱ͖ΔΑ͏ʹઃܭ͠ɺ௿ίετͰଟ͘ͷՁ஋Λͩͤ
   Δ։ൃΛ͢Δ͜ͱΛ޷Ή
   

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3. 1. ͸͡Ίʹ
   twitter
   ͸͡Ί·ͨ͠ʂ
   ϑΥϩʔ͓ئ͍͠·͢ʂ
   @takuuuuuuu777
   ϑΥϩʔ͍ͨ͠ͱࢥͬͯ΋Β͑ΔΑ͏ͳ
   ൃදΛ͠·͢....ʂʂ
   3
   3
   

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4. 1. ͸͡Ίʹ
   ࿩͢಺༰
   DDDΛಋೖͨ͠
   ϏοτΩʔ(HomeࣄۀྖҬ)ͰͷӦΈʹ͍ͭͯ
   ໨త
   DDDಋೖͷϓϩηεͱ޻෉఺ͷڞ༗
   ࠓޙಋೖ࣌ͷࢀߟ / ಋೖޙͷվળͷࢀߟ
   4
   4
   

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5. 1. ͸͡Ίʹ
   5
   5
   λʔήοτ
   ɾDDDͬͯΦΠγΠϊʁ
   ɾDDDಋೖ͍͚ͨ͠ͲͲ͏͢Ε͹Α͍...ʁ
   ɾDDDಋೖͯ͠Έ͚ͨͲ্ख͍͔͘ͳ͍
   ɾDDDಋೖࡁΈͰ΋ͬͱચ࿅͍ͤͨ͞
   ɾଞࣾͷӡ༻ํ๏ؾʹͳΔ
   

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6. Outline
   1. ͸͡Ίʹ
   2. ;Ή;Ή
   3. ͦ΋ͦ΋
   4. ͯͯ͞͞
   5. ΋͙΋͙
   6. ͠Ί
   6
   6
   

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7. Outline
   1. ͸͡Ίʹ
   2. ;Ή;Ή (ͳΔ΄ͲͶ)
   3. ͦ΋ͦ΋ (ͳʹ͍ͨ͠Μ͚ͩͬ)
   4. ͯͯ͞͞ (Ͳ͏͠Α͏͔)
   5. ΋͙΋͙ (͓͍͍͠ͷ)
   6. ͠Ί
   7
   7
   

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8. ;Ή;Ήɻ
   8
   8
   

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9. 1. ;Ή;Ή
   DDDͱฉ͍ͯɺͳʹΛࢥ͍·͔͢ʁ
   9
   9
   ಥવͰ͕͢...
   

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10. 1. ;Ή;Ή
    ΤϯςΟςΟɺ஋ΦϒδΣΫτ
    ϞσϦϯάɺυϝΠϯΤΩεύʔτ
    10
    10
    ઃܭࢥ૝ɺΞδϟΠϧɺफڭ࿦૪
    ͨͿΜ͍Ζ͍Ζ...
    

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11. 1. ;Ή;Ή
    ࢥͬͨ͜ͱ on 2020.01
    11
    11
    ;Ή;Ή...ͳΜ͔ߴঘɻΑ͛͞ɻ
    ϞσϦϯά͸ઃܭͷ࣌ʹҰఆͰ͖ͯͦ͏ɻ
    ։ൃऀ = υϝΠϯΤΩεύʔτ ͸౰વͰ͠ΐʂ
    ͪΐͬͱݎ࿚͗ͯ͢ɺॏͦ͏...
    ϝϦοτ͸ຊ౰ʹ͋Δ...ʁ
    ͋Μ·ಋೖΠϝʔδ͕༙͔ͳ͍...
    

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12. 1. ;Ή;Ή
    ࢥͬͨ͜ͱ on 2022.04
    12
    12
    ։ൃɺͳΜ͔՝୊͕͋Δͳ...՝୊ͳΜͩΖ...
    Ͳ͏ͨ͠ΒղܾͰ͖ΔΜͩΖ...
    DDDͷߟ͑ํΛద༻Ͱ͖Δ͔΋...ʂ
    ͦͯ͠ݱࡏ
    ͳΜͱ͔൘ʹ͍͖ͭͯͨ
    ΋ͬͱվળ͍ͯ͜͠͏ʂʂ
    

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13. ͦͯ͠ɺࢥ͏͜ͱ
    1. ;Ή;Ή
    13
    13
    

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14. ॏཁͳͷ͸
    DDDͱͯ͠ Ͳ͏͋Δ΂͖͔
    Ͱ͸ͳ͘
    1. खஈͱͯ͠ଥ౰͔
    2. ՝୊ΛղܾͰ͖Δ͔
    1. ;Ή;Ή
    14
    14
    

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15. 1. ;Ή;Ή
    1. ଥ౰͔ʁ
    ։ൃͷϑΣʔζ / ՝୊౳ΛؑΈͯ൑அ
    σϝϦοτ্͕ճͬͨΒҙຯແ͠...
    2. ղܾͰ͖Δ͔ʁ
    ղܾͷखஈʹঢ՚Ͱ͖Δ͔
    ఏএ͞Ε͍ͯΔ͜ͱΛͦͷ··࣮ફͯ͠
    ՝୊͕ղܾͰ͖Δͱ͸ݶΒͳ͍...
    15
    15
    

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16. 1. ;Ή;Ή
    1. ଥ౰͔ʁ
    ։ൃͷϑΣʔζ / ՝୊౳ΛؑΈͯ൑அ
    σϝϦοτ্͕ճͬͨΒҙຯແ͠…
    2. ղܾͰ͖Δ͔ʁ
    ղܾͷखஈʹঢ՚Ͱ͖Δ͔
    ఏএ͞Ε͍ͯΔ͜ͱΛͦͷ··࣮ફͯ͠
    ՝୊͕ղܾͰ͖Δͱ͸ݶΒͳ͍...
    16
    16
    ։ൃͷϑΣʔζͱ՝୊Λ
    ͪΌΜͱཧղͰ͖ͯΔʁʁ
    ఏএ಺༰Λ뱌ͯ͠
    ՝୊ΛͲ͏΍ͬͨΒղܾͰ͖Δ
    ͷͩΖ͏͔ʁ
    

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17. աڈΛৼΓฦͬͯΈΔ
    1. ;Ή;Ή
    17
    17
    

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18. 1. ;Ή;Ή
    ࢥͬͨ͜ͱ on 2020.0
    18
    18
    ;Ή;Ή...ͳΜ͔ߴঘɻΑ͛͞ɻ
    ϞσϦϯά͸ઃܭͷ࣌ʹҰఆͰ͖ͯͦ͏ɻ
    ։ൃऀ = υϝΠϯΤΩεύʔτ ͸౰વͰ͠ΐʂ
    ͪΐͬͱݎ࿚͗ͯ͢ɺॏͦ͏...
    ϝϦοτ͸ຊ౰ʹ͋Δ...ʁ
    ͋Μ·ಋೖΠϝʔδ͕༙͔ͳ͍...
    

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19. 1. ;Ή;Ή
    ࢥͬͨ͜ͱ on 2020.0
    19
    19
    ;Ή;Ή...ͳΜ͔ߴঘɻΑ͛͞ɻ
    ϞσϦϯά͸ઃܭͷ࣌ʹҰఆͰ͖ͯͦ͏ɻ
    ։ൃऀ = υϝΠϯΤΩεύʔτ ͸౰વͰ͠ΐʂ
    ͪΐͬͱݎ࿚͗ͯ͢ɺॏͦ͏...
    ϝϦοτ͸ຊ౰ʹ͋Δ...ʁ
    ͋Μ·ಋೖΠϝʔδ͕༙͔ͳ͍...
    ͜͏ࢥ͍ͬͯΔ࣌఺Ͱɺͦ΋ͦ΋ඞཁͳঢ়گͰͳ͍
    

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20. ͜͜͸΍Γํͷ໰୊ɻDDD͔ΒೖΔͱ೉͍͔͠΋....
    ՝୊ͱୡ੒͍ͨ͜͠ͱΛ໌֬ʹͯ͠ྟΊ͹͍͚Δʂʂ
    1. ;Ή;Ή
    ࢥͬͨ͜ͱ on 2020.0
    20
    20
    ;Ή;Ή...ͳΜ͔ߴঘɻΑ͛͞ɻ
    ϞσϦϯά͸ઃܭͷ࣌ʹҰఆͰ͖ͯͦ͏ɻ
    ։ൃऀ = υϝΠϯΤΩεύʔτ ͸౰વͰ͠ΐʂ
    ͪΐͬͱݎ࿚͗ͯ͢ɺॏͦ͏...
    ϝϦοτ͸ຊ౰ʹ͋Δ...ʁ
    ͋Μ·ಋೖΠϝʔδ͕༙͔ͳ͍...
    

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21. 1. ;Ή;Ή
    ಛʹҎԼ؍఺ʹ͍͕ͭͯ
    ຊ೔ͷϝΠϯTopic
    1. खஈͱͯ͠ଥ౰͔
    ՝୊ͷೝࣝͱDDDʹظ଴ͨ͠΋ͷ
    2. ՝୊ΛղܾՄೳ͔
    ՝୊ղܾͷͨΊͷߦͬͨ͜ͱ
    ͦͷखॱͱ޻෉఺
    21
    22
    

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22. ܰྔDDDͱ͔ϘτϜΞοϓDDD
    ͳͲͷΑ͏ʹ
    ࣮૷෦෼ͷ࿩͕ϝΠϯͰ͢
    1. ;Ή;Ή
    22
    23
    

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23. Outline
    1. ͸͡Ίʹ
    2. ;Ή;Ή (ͳΔ΄ͲͶ)
    3. ͦ΋ͦ΋ (ͳʹ͍ͨ͠Μ͚ͩͬ)
    4. ͯͯ͞͞ (Ͳ͏͠Α͏͔)
    5. ΋͙΋͙ (͓͍͍͠ͷ)
    6. ͠Ί
    23
    24
    

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24. ͦ΋ͦ΋
    ͳʹ͍ͨ͠Μ͚ͩͬʁ
    24
    25
    

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25. 1. ͦ΋ͦ΋
    ։ൃͷϑΣʔζͱ՝୊ʹ͍ͭͯ
    ͦͷͨΊʹ...
    Ϗδωεͷઆ໌ / ։ൃମ੍ͷঢ়گ
    ʹ͍ͭͯ
    1෼͘Β͍Ͱͬ͘͟Γ
    25
    26
    

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26. Ϗδωε
    26
    27
    

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27. 27
    28
    1. ͦ΋ͦ΋
    

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28. 28
    29
    1. ͦ΋ͦ΋
    

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29. 29
    30
    1. ͦ΋ͦ΋
    

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30. 30
    31
    1. ͦ΋ͦ΋
    

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31. 31
    32
    1. ͦ΋ͦ΋
    

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32. 1. ;Ή;Ή
    ಛ௃
    ର৅ྖҬ͕ͻΖ͍
    ྖҬΛΧόʔ(ͭͳ͛Δ)͜ͱͰՁ஋͕ग़Δ
    ݶΒΕͨϦιʔεͰ೗Կʹޮ཰తͳ։ൃ͢Δ͔
    1ͭͷ։ൃͰଟ͘ͷՁ஋͕ग़ͤΔ։ൃΛॏࢹ
    32
    33
    

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33. 33
    34
    1. ͦ΋ͦ΋
    

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34. ։ൃ
    34
    35
    

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35. νʔϜߏ੒
    - ࣾһ4-5ਓ + ۀ຿ҕୗ
    ։ൃϓϩηε
    - εΫϥϜ։ൃͰɺ1िؒεϓϦϯτ
    - ϑϩϯτ × όοΫΤϯυ݉ۀΛਪ঑
    - openapiͰAPIͷIFఆ͔ٛͯ͠Β࣮૷
    ٕज़
    - React × Typescriptɺnode.js × Typescript
    - ؀ڥ͸GCPɺDB͸firestore͕΄΅΄΅
    35
    36
    ೉͍͠ϙΠϯτ
    - ྖҬ͕޿͍ɺػೳ΋ଟذʹΘͨΔ
    (ݖݶͷ؅ཧ / ΧΪͷ؅ཧ / ೖୀډ؅ཧ / ܝࣔ൘ / ౤ථ...)
    - ڞ௨Խͷਪਐ -> ந৅Խ͞Εͨσʔλ΍ϩδοΫ
    1. ͦ΋ͦ΋
    ιʔεن໛
    - ςʔϒϧɿ400ఔ౓
    - APIɿ500ʙ1000ఔ౓
    - ιʔεɿ100ສߦఔ౓
    

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36. ։ൃಛੑ
    36
    37
    1. ͦ΋ͦ΋
    ɾՁ஋ఏڙͷର৅ͱͳΔࣄۀྖҬ͕ඇৗʹ޿͍
    ɹΧΪ / ಺ݟ༧໿ / ཧࣄ૯ձ / إೝূ / ഑ୡαʔϏε࿈ܞ ...ͳͲ
    ɹந৅Խ൚༻Խ͞Εͨػೳ͕͍ΖΜͳจ຺Ͱར༻͞ΕΔ
    ɾந৅Խ & ൚༻ԽΛੵۃతʹ࣮ࢪ
    ɹ(֓೦తͳཁૉ͕ڧ͘ͳΓɺೝࣝ૬ҧ͕ੜ·ΕΔϦεΫ͋Γ)
    ϓϩμΫτ਺ / ػೳ਺ ͕૿͑ɺ։ൃʹؔΘΔਓ΋૿Ճ
    → શମΛ೺Ѳ͠ͳ͕Β։ൃΛ͢Δ͜ͱ͕ඇৗʹࠔ೉ͳঢ়ଶʹ...
    

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37. 37
    38
    1. ͦ΋ͦ΋
    1ͭͷαʔϏε͕ෳ਺ͷจ຺Ͱར
    ༻͞ΕΔͱɺαʔϏε಺ʹݸผ
    ͷॲཧΛ͕࣋ͪͪ...
    1ͭͷαʔϏε͕ෳ਺ͷจ຺Ͱར
    ༻͞ΕΔͱɺαʔϏε಺ʹݸผͷ
    ॲཧΛ͕࣋ͪͪ...
    ༧໿Λڞ௨Խ͢Δࡍʹൃੜ͑͠Δ໰୊
    

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38. ྫ1
    ༧໿ͷσʔλʹ͸ҎԼͷϑΟʔϧυ͕͋Δ
    ɾॏෳ༧໿Մ൱: boolean (ඞਢ߲໨)
    ɾॏෳ༧໿Մೳ਺: number (೚ҙ߲໨)
    ॏෳ༧໿Մ൱͕trueͷ৔߹ʹɺॏෳ༧໿Մೳ਺͕ະࢦఆͷ৔߹ͷऔΓѻ͍ํ
    ॏෳ༧໿Մೳ਺͕ෛͷ਺ͩͬͨ৔߹ͷऔΓѻ͍ํ
    Ͱॲཧͷ݁Ռ͕ࠩҟ͕ग़ΔՄೳੑ͕͋Δ
    ಺ݟ༧໿Ͱ͸ॏෳ༧໿Մ൱͕trueͰॏෳ༧໿਺͕ະࢦఆͷ৔߹ʹ͸੍ݶ͔͚ͳ͍
    ձٞࣨ༧໿Ͱ͸ॏෳ༧໿Մ൱͕trueͰॏෳ༧໿਺͕-1ͷ৔߹ʹ͸ձٞࣨͰࢦఆ͞Ε͍ͯΔσ
    ϑΥϧτͷ੍ݶ਺Ͱѻ͏
    ͱ͔...
    38
    39
    1. ͦ΋ͦ΋
    

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39. ྫ2
    ಺ݟ༧໿ͷొ࿥ʹ͸ҎԼͷϧʔϧ͕͋ͬͨ
    ɾೖډத͸༧໿ෆՄɻୀڈ༧ఆ೔ͷཌ೔ʹೖډத->ۭࣨͱͳΔ
    ௥ՃͰҎԼͷϧʔϧ͕ద༻ͱͳͬͨ
    ɾୀڈ༧ఆ೔͸ୀڈ༧ఆ೔࣌Ҏ߱ͳΒಛผʹ಺ݟ͕ՄೳͱͳΔ
    ୀڈޙͷ࿈བྷઌͷߋ৽ॲཧͰߋ৽͢Δ໰୊͕ൃੜ
    ಺ݟ༧໿ͷొ࿥/มߋؔ࿈Ͱ͸௥Ճཁૉͷߟྀ͕͞Ε͍͕ͯͨɺ
    ೖୀډͷߋ৽ॲཧͰ্هϧʔϧ͕ߟྀ͞Ε͓ͯΒͣߋ৽Ͱ͖ͳ͍໰୊͕ൃੜ
    ୀڈ༧ఆ೔ࣗମͷมߋͳ͍΋ͷͷɺ௥Ճཁૉ͕ߟྀ͞Ε͍ͯͳ͍νΣοΫॲཧ͕࠶౓࣮ࢪ͞
    ΕɺΤϥʔ൑ఆ
    39
    40
    1. ͦ΋ͦ΋
    

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40. 40
    ՝୊
    - ଞػೳͰෆ੔߹ͱͳΔσʔλΛ࡞Δ࣮૷͕Մೳ
    - Өڹൣғͷ೺Ѳࠔ೉Ͱɺಛఆσʔλར༻ՕॴνΣοΫ͕ඞཁ & ͭΒ͍
    - ௐࠪ࣌ͳͲσʔλ͔Βݱঢ়ͷεςʔλε೺Ѳ͕ࠔ೉ (σʔλભҠ)
    - σʔλमਖ਼࣌ʹඞཁͳՕॴͷચ͍ग़͕͠ࠔ೉ (ػೳ × σʔλͷؔ࿈)
    - validation౳ͷϩδοΫ͕ࢄཚͯ͠ػೳमਖ਼͕େม…
    - ొ࿥஋ͷೝࣝͷ࢓ํ͕֤ػೳࠩҟ͕͋Γػೳमਖ਼࣌ʹͭΒ͍…
    - Ͳ͜ʹͲͷΑ͏ͳ࣮૷͞Ε͍ͯΔ͔ೝ͕ࣝͣΕΔ͜ͱ͕͋Δ
    - service૚ˠservice૚ˠ...→service૚ˠ update & commit
    41
    1. ͦ΋ͦ΋
    

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41. 41
    ՝୊
    - ଞػೳͰෆ੔߹ͱͳΔσʔλΛ࡞Δ࣮૷͕Մೳ
    - Өڹൣғͷ೺Ѳࠔ೉Ͱɺಛఆσʔλར༻ՕॴνΣοΫ͕ඞཁ & ͭΒ͍
    - ௐࠪ࣌ͳͲσʔλ͔Βݱঢ়ͷεςʔλε೺Ѳ͕ࠔ೉ (σʔλભҠ)
    - σʔλमਖ਼࣌ʹඞཁͳՕॴͷચ͍ग़͕͠ࠔ೉ (ػೳ × σʔλͷؔ࿈)
    - validation౳ͷϩδοΫ͕ࢄཚͯ͠ػೳमਖ਼͕େม…
    - ొ࿥஋ͷೝࣝͷ࢓ํ͕֤ػೳࠩҟ͕͋Γػೳमਖ਼࣌ʹͭΒ͍…
    - Ͳ͜ʹͲͷΑ͏ͳ࣮૷͞Ε͍ͯΔ͔ೝ͕ࣝͣΕΔ͜ͱ͕͋Δ
    - service૚ˠservice૚ˠ...→service૚ˠ update & commit
    42
    1. ͦ΋ͦ΋
    

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42. 1. ݎ࿚ੑ
    ར༻͢Δଆͷ࣮૷ͷ࢓ํʹΑΒͣɺϧʔϧ͕ݫक͞ΕΔ
    2. ஌ࣝͷू໿
    ར༻ՕॴͷιʔεΛղಡ͢Δ͜ͱͳ͘ɺڍಈͷ೺Ѳ͕Մೳ
    42
    43
    1. ͯͯ͞͞
    ՝୊·ͱΊ
    

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43. ࣮ࡍͷιʔεΛݟͳ͕Β
    ՝୊Λ֬ೝͯ͠ΈΔ
    43
    44
    1. ͦ΋ͦ΋
    ࣌ؒͳ͍ͷͰ͜͜Ͱ͸ׂѪ
    ผ్Qiitaʹهࡌ͍ͯ͠·͢ʂ
    ※ ࢲͷtwitterϦϯΫ͔ΒඈΜͰ͍͚ͨͩ·͢ʂ
    

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44. 44
    45
    1. ͦ΋ͦ΋
    Πϝʔδ
    Qiita Qiitaʹهࡌͷαϯϓϧ
    

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45. ͯͯ͞͞
    Ͳʔ͢Δʁ
    45
    46
    

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46. ద੾ʹ࣮૷͞Ε͍ͯΕ͹OK
    ͬͯ࿩Ͱ͸͋Δɻ
    SOLIDݪଇͱ͔
    ୯Ұ੹೚ͱ͔
    ୯Ұ੹೚ͱ͔
    ୯Ұ੹೚ͱ͔
    ...
    46
    47
    1. ͯͯ͞͞
    લఏͱͯ͠...
    

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47. ۃ࿦SOLIDݪଇΛશһ͕
    ߴ͍ਫ४Ͱ࣮ݱͰ͖Ε͹ࠔΒͳ͍
    Ͱ΋ͦ͏͸͍͔ͳ͍...
    ࢓૊Έͱͯ͠ղܾ͢Δඞཁ͕͋Δ
    ɾݎ࿚ʹ͢΂͖෦෼
    ɾ଎౓΍ख཭ΕΛॏࢹ͍ͨ͠෦෼
    Λ෼཭Ͱ͖Δͱͳ͓ྑ͍
    47
    48
    1. ͯͯ͞͞
    

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48. ϚΠΫϩαʔϏεԽͱ͔΋͋Δ
    ࣄલʹ໌֬ʹڥքΛҾ͘ඞཁ͋Γ
    ޙ͔Βमਖ਼͕ޮ͔ͤͮΒ͍
    ৔߹ʹΑͬͯ͸։ൃ଎౓્֐ཁҼͱͳΓ͑Δ
    ܾࡁ / ೝূج൫ͱ͔͸੹຿Λ໌֬ԽͰ͖ΔྖҬ͸
    ϚΠΫϩαʔϏεԽࡁΈ
    48
    49
    1. ͯͯ͞͞
    

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49. DDD
    υϝΠϯΦϒδΣΫτʹண໨
    49
    50
    1. ͯͯ͞͞
    ݁Ռͱͯ͠...
    

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50. υϝΠϯΤΩεύʔτ
    ϢϏΩλεݴޠͰձ࿩͕Ͱ͖Δͱ͔
    ϞσϧΛܧଓతʹ੒௕͍ͤͯ͘͞ͱ͔...
    ͸࣍ͷεςοϓͰ
    1. ݎ࿚ɺ2. ஌ࣝͷू໿
    ͕·ͣ͸ओ໨త
    50
    51
    1. ͯͯ͞͞
    DDDͱ͍ͬͯ΋...
    ↑͜Ε΋ॏཁͰ͕͢ओͨΔ՝୊Ͱͳ͍ͷͰɺ࠷ॳ͸ߟ͑ͳ͍
    ɹ࠷ॳ͔Β͋Ε΋͜Ε΋ͩͱࠞཚͯ͠͠·͏ͷͰ...
    

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51. ͰɺͲ͏ͨ͠ͷʁ
    0ϕʔεͰ࡞Γ௚͠ʁ
    51
    52
    1. ͯͯ͞͞
    

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52. طଘͷߏ੒Λ׆͔͠ͳ͕Β࣮૷
    52
    53
    1. ͯͯ͞͞
    

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53. طଘͷߏ੒Λ׆͔͠ͳ͕Β࣮૷
    53
    54
    1. ͯͯ͞͞
    ࣮ࡍʹͳʹΛͨ͠ͷ͔ʁ
    

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54. طଘ࣮૷
    ϨΠϠʔυߏ଄
    54
    55
    1. ͯͯ͞͞
    DB(firestore)΁ͷґଘ౓େ
    serviceϨΠϠͰ΋ґଘ࣮ͨ͠૷಺༰
    service -> service -> service …
    Έ͍ͨͳߏ଄..͚ͬ͜͏͋Δ
    DBͷܕ৘ใ
    υΩϡϝϯτύεͷఆٛ
    (table໊+primaryKeyΈ͍ͨͳ΋ͷ)
    

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55. ·ͣ͸ɺͱΓ͋͑ͣɺ
    DAOͷฦ٫஋ΛΫϥεͰฦ٫
    ͦ͜ʹϝιουΛੜ΍͢
    ߋ৽΋Ϋϥεड͚औͬͯߋ৽͢Δ
    55
    56
    1. ͯͯ͞͞
    طଘͷॲཧ͸ͦͷ··ɺ
    ৽ͨʹͭ͘Δ෦෼Λ
    ·ͣ͸Ϋϥε࢖࣮ͬͯ૷ͯ͠ΈΔ
    ͬͯͱ͜Ζ͔Β࢝ΊΔ
    

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56. 56
    57
    1. ͯͯ͞͞
    

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57. 57
    58
    1. ͯͯ͞͞
    before after
    

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58. Is this DDD ... ? (͜Ε͕DDDʁ)
    ͬͯ࿩͸͋Δ͕ɺ͜Ε͚ͩͰ΋ղܾͰ͖Δ໰୊͸͋Δ
    ҎԼͷج൫͕Ͱ͖Δ
    ɾΫϥε಺ͷϧʔϧΛఆٛͰ͖Δ
    ɾৼΔ෣͍ΛఆٛͰ͖Δ
    58
    59
    1. ͯͯ͞͞
    

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59. 59
    60
    1. ͯͯ͞͞
    ؆୯ʹ௥ՃͰ͖Δ͜ͱ
    ɾॳظԽঢ়ଶͷ໌ࣔ
    ɾόϦσʔγϣϯͷ໌ࣔ
    ɾৼΔ෣͍ΛఆٛͰ͖Δ
    ɾϞσϧ಺ͷ੔߹ੑΛ୲อͰ͖Δ
    ͜͜·ͰͰ΋ҙຯ͸͋Δʂ
    ͞ΒʹͲ͏ղܾ/վળ͍͔ͯ͘͠
    ՝୊ / ղܾ͍ͨ͠ϙΠϯτ
    ʹԠ֦ͯ͡ு͍͚ͯ͠͹OKʂ
    

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60. ΍ͬͨ͜ͱ
    ɾEntityΛ·ͣ͸
    ɾRepositoryͰ·͠ʹ
    ɾ࣍ʹValueObject
    ɾϞσϧؒ੔߹ੑ୲อͷͨΊͷू໿
    ɾݎ࿚ੑڧԽͷͨΊͷFirstCollection
    ɾ͞ΒͳΔ஌ࣝͷू໿ʹ͸DomainService
    ɾརศੑͷͨΊͷCQR
    ɾൈ͚݀ݮΒͨ͢ΊʹσΟϨΫτϦ࠶ߟ
    ɾૄ݁߹ଅਐʹ͸DomainEvent΋͋Γ
    60
    61
    1. ͯͯ͞͞
    

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61. ΍ͬͨ͜ͱ
    ɾEntityΛ·ͣ͸
    ɾRepositoryͰ·͠ʹ
    ɾ࣍ʹValueObject
    ɾϞσϧؒ੔߹ੑ୲อͷͨΊͷू໿
    ɾݎ࿚ੑڧԽͷͨΊͷFirstCollection
    ɾ͞ΒͳΔ஌ࣝͷू໿ʹ͸DomainService
    ɾརศੑͷͨΊͷCQR
    ɾൈ͚݀ݮΒͨ͢ΊʹσΟϨΫτϦ࠶ߟ
    ɾૄ݁߹ଅਐʹ͸DomainEvent΋͋Γ
    61
    62
    1. ͯͯ͞͞
    

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62. Repository
    62
    63
    1. ͯͯ͞͞
    UsecaseϨΠϠͰ
    Entity㱻Objectͷม׵
    ͍ͯ͠Δ͔Β
    ݎ࿚ੑ͸௿͍
    EntityͰنఆ͍ͯ͠Δ
    ੍ޚʹج͍ͮͯ
    σʔλ͕ొ࿥
    ͞ΕΔ͔ະఆ
    

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63. 63
    64
    1. ͯͯ͞͞
    Repository
    

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64. 64
    65
    1. ͯͯ͞͞
    Repository
    

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65. 65
    66
    1. ͯͯ͞͞
    ValueObject
    (ݎ࿚ԽͷڧԽ)
    validationΛ໌ࣔͰ͖Δ
    ৼΔ෣͍ΛఆٛͰ͖Δ
    

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66. ΋͙΋͙
    ͓͍͍͠ʂʁ
    66
    67
    

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67. ΍ͬͯΈͯྑ͔ͬͨʂ
    ౰ॳݟࠐʹൺ΂͢ΜͳΓಋೖͰ͖ͨʂ
    67
    68
    1. ΋͙΋͙
    

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68. ɾϧʔϧ͕ݫ֨ʹͳΔ & ू໿͞ΕΔ
    ɾʮૢ࡞ʯʮߋ৽ʯ͕෼཭͞Ε໌ࣔతʹͳΔ
    ɾϞσϧͷʮৼΔ෣͍ʯʹ஫ҙ͕޲͘Α͏ʹͳΔ
    ɾusecase͕࣮૷͠΍͍͢εοΩϦ͢Δ
    68
    69
    1. ΋͙΋͙
    ྑ͔ͬͨ͜ͱ
    

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69. ɾؔ਺ͷύϥϝʔλ͕౷Ұ͞Ε͖ͬ͢Γͨ͠
    ɾอଘલͷ৘ใΛEntity಺ʹ࣋ͨͤΔ͜ͱͰɺ
    ɹrepositoryͷॲཧ͕εοΩϦͨ͠
    ɾӨڹൣғ͕ΑΓ໌֬ʹͳͬͨ
    69
    70
    1. ΋͙΋͙
    ྑ͔ͬͨ͜ͱ
    (෭࣍తޮՌ)
    

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70. 70
    71
    1. ΋͙΋͙
    ޮՌߴ͔ͬͨ͜ͱ
    ɾValueObject
    ϑΥʔϚοτ΍ϧʔϧΛΑΓ໌֬ʹͰ͖Δ
    ɾDomainService
    ϞσϧؒͷϧʔϧΛෑ͘͜ͱ͕Ͱ͖Δ
    ɾσΟϨΫτϦ੔ཧ
    ϧʔϧΛపఈ͢ΔͨΊʹඞཁ
    

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71. ɾطଘϑΝΠϧͷߏ੒ͱͷซ༻
    ɾஈ֊తಋೖ
    ɾݎ࿚ԽͷͨΊͷpackageߏ੒
    ɾιʔεهࡌྔΛ΁Βͨ͢Ίͷ࢓૊
    ɾมߋલޙͷ৘ใΛ΋ͨͤΔΑ͏ʹ
    ɾtransactionͷ؅ཧ
    71
    72
    1. ΋͙΋͙
    ޻෉఺
    ɾloggerɺdeep cloneɺ
    ɾreadOnly
    ɾvalueObjectͷdefault checker
    ɾtypeUtils
    ɾtoFirestoreͷconverter
    ɾlooseEntityͰgetterͷσϑΥ࣮૷
    ɾDIपΓ
    

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72. ɾ৑௕Ͱ࣮૷ྔ͕ଟ͘ͳΔɻվળͷ༨஍͋Γɻ
    ɾ΍Δ/΍ΒΛ໌֬ʹ͠ͳ͍ͱ͙͢ΧΦεʹͳΔ
    ɾ΍Γͳ͕Βߋ৽͢Δ͕සൟʹൃੜ͢Δ
    ɾϞσϧ࡞ΓࠐΈ -> ࣮૷͸ίεύΑ͘ͳ͔ͬͨ...
    ɾνʔϜ΁ͷల։΋͙͢ʹ͸Ͱ͖ͳ͍
    72
    73
    1. ΋͙΋͙
    େมͩͬͨ͜ͱ
    

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73. ɾ࣮૷લͷϞσϦϯά
    ɾڥք͚ͮΒΕͨίϯςΩετ
    ɾू໿୯ҐͰͷΈͷߋ৽
    73
    74
    1. ΋͙΋͙
    ΍Βͳ͔ͬͨ͜ͱ
    

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74. ͠Ί
    74
    75
    

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75. ॏཁͳͷ͸
    DDDͱͯ͠ Ͳ͏͋Δ΂͖͔
    Ͱ͸ͳ͘
    1. खஈͱͯ͠ଥ౰͔
    2. ՝୊ΛղܾͰ͖Δ͔
    1. ;Ή;Ή
    75
    76
    

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76. Ή͠Ζɺ࠷ॳ͔ΒϞσϧԽ͸೉͍͠...ʂʂʂʂ
    ΧϓηϧԽΛਪ͠ਐΊ͍͔ͨΒɺϞσϦϯάͷॏཁੑ͕ਁಁͯ͠
    υϝΠϯۦಈͷϞσϦϯάʹྗ͕஫͗͜·Ε͍ͯ͘
    ͬͯϕΫτϧ͕ࣗવͳؾ͕͢Δ...
    76
    77
    1. ͠Ί
    

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77. DDDΛऔΓೖΕͯ΋ɺ؆୯ʹղܾ͢Δ΋ͷͰ͸ͳ͍ɻ
    ୯७ʹઃܭ͕ॏཁʂʂʂʂʂʂ
    ࿪Έͷ͋Δ࣮૷͕ͮ͠Β͍
    ઃܭΛ޲্͢Δ͜ͱΛิॿͯ͘͠ΕΔ
    77
    78
    1. ͠Ί
    

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78. ࠓޙ
    ● ϞσϧΛνʔϜ/૊৫Ͱৢ੒͍ͯ͘͠࢓૊Έͮ͘Γ
    ● ValueObjectͷීٴ (஋ͷ؅ཧͷ࢓ํʹϧʔϧ͕༗Δ΍ͭ)
    ● υϝΠϯΠϕϯτͷಋೖ
    ● ࣮૷ྔͷ௿ݮ
    ● DomainModel ← infractructure ͷιʔε࣮૷ྔ௿ݮ
    ● ࢀর༻σʔλͱͷ࿈ܞڧԽ
    ● τϥϯβΫγϣϯ؅ཧͷ؅ཧ
    ● ྖҬͷ੾Γํͷྑ͍ํ๏ͷ໛ࡧ
    78
    79
    1. ͠Ί
    

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79. Ͳ͔͜Ͱ࿩ͤΔͱ͍͍ͳͱࢥ͏͜ͱ
    ● Ϗδωεͷ࿩
    ● ந৅Խ / ߏ଄Խ / ൚༻ԽΛ໨ࢦ͢։ൃͷ࿩
    ● ՝୊ͷৄࡉ / ࣮ྫɺͱղܾํ๏
    ● ҎԼཁૉͷ࢖͍ํৄࡉ / ࣮ྫ
    ○ ValueObject / Entity / DomainService / DomainEvent
    ● ϞσϦϯάͷ࢓ํ ͱ ࣮ྫ
    ● σʔλߋ৽࣌ͷτϥϯβΫγϣϯ؅ཧͷ࢓ํͱ޻෉఺ৄࡉ
    ● ॏෳνΣοΫͷػߏͷ࣮ݱͷ࢓ํ࣮ྫ (DomainService)
    ● ΧϓηϧԽͷ࣮ݱ౓߹ɺgetter, setterͱ͔Ͳ͏࣮ݱͯ͠Δ͔
    ● ίετෛՙͱͷ޲͖߹͍ํ
    ● σΟϨΫτϦߏ੒
    ● ͓ͷ͓ͷಉ͡ࣄ৅ʹ͍ͭͯϞσϦϯάͯ͠ɺσΟϕʔτͷ࣮ԋ
    79
    80
    1. ͠Ί
    

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80. ΍ͬͯΈͯΘ͔Δ͜ͱ͕ଟ͍
    ࠓճͷΑ͏ʹٞ࿦Ͱ͖Δ৔͸وॏʂʂ
    80
    81
    1. ͠Ί
    

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81. ͓·͚
    81
    82
    

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82. 1. ͸͡Ίʹ
    twitter
    ͸͡Ίͯ·͢ʂ
    ϑΥϩʔ͓ئ͍͠·͢ʂ
    @takuuuuuuu777
    ϑΥϩʔ͍ͨ͠ͱࢥͬͯ΋Β͑ΔΑ͏ͳ
    ൃදͰ͖ͯͨΒ͍͍ͳ...
    82
    83
    

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83. 1. ͓·͚
    Meety
    ࡞੒͠·ͨ͠ʂ
    ʮDDDʯʹ͍ͭͯ
    ΋ͬͱޠΒ͍͍ͨΑʂ
    ΋ͬͱৄ͍͠࿩͍ͨ͠/ฉ͖͍ͨΑʂ
    ͬͯํ͸ͥͻʂ
    ※ ࢲͷtwitterͷݻπΠʹهࡌͯ͠·͢
    83
    84
    

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85. Appendix
    85
    86
    ● DomainModel ←
    infractructure ͷ
    ιʔε࣮૷ྔ௿ݮ
    

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86. Domain Object ͷશମ૾
    86
    87
    1. Appendix
    

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87. Entity / ValueObject
    87
    88
    1. Appendix
    

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88. AbstractDomainObject
    88
    89
    1. Appendix
    

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89. AbstractLooseEntity
    89
    90
    1. Appendix
    

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90. AbstractValueObject
    90
    91
    1. Appendix
    

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91. DIͷ࣮ݱํ๏
    91
    92
    1. Appendix
    

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92. DIͷ࣮ݱํ๏
    92
    93
    1. Appendix
    

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93. Queue Smaple
    93
    94
    1. Appendix
    

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94. Queue Smaple આ໌
    94
    95
    1. Appendix
    ■ Queue
    ɾQueue Λ؅ཧ͢ΔͨΊͷσʔλ
    ɾॲཧத͔൱͔ɺॲཧ͍ͯ͠Δ task ͕ͳʹ͔ͳͲΛ؅ཧ͢Δ
    ■ QueueTask
    ɾQueue ʹੵ·ΕͨλεΫ
    ɾॲཧதͱͳΔλΠϛϯάͰ࡟আ͞Εɺॲཧʹࣦഊ͠ϦτϥΠର৅ͱͳͬͨλΠϛϯάͰ࠶ੜ੒͞ΕΔ
    ɾجຊతʹ͸ enqueue ͞Εͨ೔࣌ॱʹλεΫΛ࣮ߦ͢Δ
    ɾ༏ઌ౓͕ࢦఆ͞Εͯݴ͏৔߹ʹ͸༏ઌ౓͕ߴ͍ॱʹ࣮ߦ͢Δ
    ■ QueueTaskResult
    ɾQueue ͷ࣮ߦ݁ՌΛ؅ཧ͢ΔͨΊͷσʔλ
    ɾॲཧࣦഊͯ͠ϦτϥΠ͢Δ৔߹ͳͲ͸ɺϦτϥΠ͝ͱʹ݁ՌσʔλΛੜ੒͢Δ
    ɾTaskEntry ʹ͸࠷ऴతͳ݁ՌͷΈ֨ೲ͢Δ
    ■ QueueEntry
    ɾQueue λεΫΛ؅ཧ͢Δݩσʔλ
    ɾλεΫੜ੒࣌ʹຊσʔλ͕ੜ੒͞ΕΔ
    ɾλεΫ࣮ߦʹඞཁͳ৘ใͱɺ࠷௿ݶͷεςʔλεͷ؅ཧΛߦ͏
    ɾ࣮ࡍʹ Queue ্ͷσʔλભҠΛ؅ཧ͢Δσʔλ͸ผ
    ■ QueueEntrySubtask
    ɾ1 ͭͷ Entry Λ࣮ݱ͢ΔͨΊʹෳ਺ͷ Task Λ࣮ߦ͢Δඞཁ͕͋Δ৔߹ʹ
    ɹෳ਺ͷ Task Λ SubTask ͱͯ͠؅ཧ͢Δ
    

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