Clean Architecture: クライアントアプリの「中心」とは何か / 20200121 the center of the client #ios_ca

iOS Clean Architecture勉強会 sponsored by Sansan - connpass
https://connpass.com/event/158269/
の発表資料です。

## 参考資料

Clean Architecture　達人に学ぶソフトウェアの構造と設計 (アスキードワンゴ) | Ｒｏｂｅｒｔ Ｃ．Ｍａｒｔｉｎ, 角 征典, 高木 正弘 | 工学 | Kindleストア | Amazon
https://www.amazon.co.jp/dp/B07FSBHS2V

マイクロサービスとクライアント: 
理想と現実の狭間で / Ideal and Reality of microservices from the client-side - Speaker Deck
https://speakerdeck.com/qsona/ideal-and-reality-of-microservices-from-the-client-side

実践、BFF ~ BFFはFiNCのアプリで何を解決したのか ~ - Speaker Deck
https://speakerdeck.com/kensukeizumi/shi-jian-bff-bffhafincfalseapuridehe-wojie-jue-sitafalseka

Transcript

1. ΫϥΠΞϯτΞϓϦ
   ͷʮத৺ʯͱ͸Կ͔
   b .
   2020/1/21 i S le n rc it ct reษڧձ
   1
   

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2. t ka ek
   @t ka ek
   W rk
   O S: ActionClosurable౳
   A p: PasteTheType
   A ti le
   Q it ʮ͓લΒ͕M de ͱݺͿΞϨΛ
   ͳΜͱݺͿ΂͖͔ʯ
   P AK ʮi SΞϓϦઃܭύλʔϯೖ໳ʯ
   ʢڞஶʣ
   2
   

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3. View Slide

4. ۙگ
   ࠷ۙస৬ͯ͠
   i SΤϯδχΞͰ͸
   ͳ͘ͳΓ·ͨ͠
   4
   

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5. 35ࡀఆ೥આͬͯ͜ͱʹ͠·͢
   5
   

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6. ಉੈ୅͸ఆ೥ͤͣʹؤுͬͯ·͢Ͷʢฏ੒͔Βોͬͨࠓ೥य़ͷ৽Ξχϝʣ
   6
   

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7. ຊ୊
   7
   

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8. C ea A ch te tu eͷ
   ʮத৺ʯͱ͸Կ͔
   8
   

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9. View Slide

10. Ө͕͋Δ…ʁ
    ౳ߴઢΈ͍ͨ…ʁ
    1
    

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11. View Slide

12. Q.
    C ea A ch te tu eͷ
    ʮத৺ʯͱ͸Կ͔
    A.
    ૑քࢁͷࢁ௖
    1
    

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13. ͪͳΈʹy ͞Μͷ
    ʮV ݚڀಡຊʯͰ΋
    ཱମతͳදݱ͞Εͯ·͢
    https://swift.booth.pm/
    items/1758609
    1
    

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14. ΋ͬͱਂ͍
    ຊ୊
    1
    

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15. ૑քࢁͷܗʹनΘΕͨ
    ࣦഊஊ
    ͷ࿩Λ͠·͢
    1
    

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16. ͋Δػೳ͚ͩΛ෼཭ͨ͠f r Λ࡞Ζ͏ͱͨ͠
    ɹɹɹɹɹɹɹɹʘμϒϧ૑քࢁʂʂʗ
    ɹ
    !
    A .f r ɹɹɹ H .f r
    1
    

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17. μϒϧ૑քࢁͷಈػ
    • H Λf r ʹ͢Ε
    ͹ࠓͷA ͚ͩ͡Όͳ͘
    ͯɺ·ͩݟ͵A Ͱ΋࢖
    ͑Δ͡ΌΜʁ
    • H ͸σΧ͍ػೳͳͷͰɺ
    A ʹೖΕΔͱಉ৺ԁ͕
    ࿪Ήͳ…
    • H ͸A ʹͱͬͯ
    e l i c ͱͯ͠
    ଊ͑ΒΕΔʂ
    1
    

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18. μϒϧ૑քࢁͷ຤࿏(1)
    A ͷU Ͱɺ
    H ͷE ͷঢ়ଶΛ੍ޚͨ͘͠ͳͬͨ
    …͕ɺ
    ͍͍ͪͪ࿢·Ͱ߱Γͳ͍ͱ
    ΍ΓͱΓ͕Ͱ͖ͳͯ͘ਏ͍
    1
    

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19. μϒϧ૑քࢁͷ຤࿏(2)
    ݁ہA ͸࡞Δඞཁ͕ͳ͘ͳ͚ͬͨͲɺ
    ޙ͔Β౷߹͸ਏ͍
    ແҙຯʹ෼͔Εͨf r ͷґଘ؅ཧ͕
    େ͖ͳෛ࠴ʹͳͬͨ
    1
    

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20. C ຊ17ষʹ΋ྨࣅͷΤϐιʔυ͸͋Δ
    Ϙϒ͓͡͞Μᐌ͘ɺ
    ΞϓϦ෼ׂͰ͖Δ͜ͱ͋Γ͖Ͱ࡞ͬͯ͠·ͬͨͷ
    ͕·͔ͣͬͨ
    ෆཁͳڥք͸σϝϦοτͷ΄͏͕େ͖͍
    2
    

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21. Ͳ͏͢Ε͹ྑ͔͔ͬͨ
    ʮH ge͸σΧ͍ػೳͳͷ
    ͰɺA p1ʹೖΕΔͱಉ৺ԁ
    ͕࿪Ήͳ…ʯ
    ͱ͍͏ࢥߟΛࣺͯΔ
    2
    

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22. ϦΞϧͳΞϓϦ͸
    ຊ౰ʹϚδͰ
    ૑քࢁʁ
    2
    

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23. C ຊ ୈ22ষΑΓ
    2
    

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24. View Slide

25. ಉ৺ԁ
    Ͳ͍ͬͨ͜
    2
    

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26. ͞Βʹi ΞϓϦ͋Δ͋Δ
    2
    

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27. i ΞϓϦ΋ͬͱ͋Δ͋Δ
    2
    

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28. Θ͔Δ͜ͱ
    • ΞϓϦ͸࿈ๆͰ͋Δ
    • ࢁ௖͸ͻͱͭͱ͸ݶΒͳ͍
    • தෲʹখࢁΛ࡞ͬͯ΋ྑ͍
    2
    

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29. ͨͩ͠ɺαʔόͱͷ௨৴͕͋Δ
    ΫϥΠΞϯτΞϓϦ͸ͲͷΈͪ
    μϒϧ૑քࢁ
    ͳΜͰ͢ΑͶ…
    2
    

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30. q ʮϚΠΫϩαʔϏεͱΫϥΠΞϯτ: ཧ૝ͱݱ࣮ͷڱؒͰʯP
    https://speakerdeck.com/qsona/ideal-and-reality-of-microservices-from-
    the-client-side?slide=17
    3
    

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31. μϒϧ
    ૑քࢁ
    3
    

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32. τϦϓϧ
    ૑քࢁ
    3
    

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33. ΫΞυϥϓϧ
    ૑քࢁ
    3
    

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34. ૑ք
    ࢁ຺
    3
    

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35. ૑քࢁ຺ͷͭΒΈ
    ͍͍ͪͪ࿢·Ͱ߱Γͳ͍ͱ
    ΍ΓͱΓͰ͖ͳͯ͘ਏ͍
    ΫϥΠΞϯτΞϓϦͷʮϏδωεϩδο
    Ϋʯͬͯ΄΅ɺ͍ͭ͜ΒΛͳΜͱ͔ؤுͬͯ
    ܨ͗߹ΘͤΔ͜ͱͰ͸…ʁ
    3
    

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36. ͋ΔछͷΫϥΠΞϯτΞϓϦ͸
    Χϧσϥ1
    1 ΧϧσϥɿՐࢁ׆ಈͰͰ͖ͨՐޱͷۼ஍ͷ͜ͱɻѨોࢁͷ΋ͷ͕༗໊ɻ
    ͳ͓͜Ε͸ʮC ʹ͓͚ΔϦʔυϞσϧʹపͨ͠ঢ়ଶʯͱݴ͍׵͑ͯ΋͍͍ɻ
    3
    

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37. View Slide

38. J ON৭෇͚܎Ͱ͋
    Δ͜ͱΛ൱ఆ͠ͳ͍
    J ONͷ৭෇͚ͦ͜
    ͕೉͍͠
    3
    

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39. ΫϥΠΞϯτΞϓϦͷʮυϝΠϯϩδοΫʯ
    ͸ʮΤϯςΟςΟʹத৺ʯʹ͋Δͱ͸ݶΒͳ
    ͍
    • ཭Εͨը໘Ͱͷσʔλ੔߹ੑΛͲ͏อ͔ͭ
    • ঢ়ଶมԽʹ଱͑͏ΔಈతͳϏϡʔίϯϙʔωϯτߏ੒
    • ෳ਺ͷೖྗ૷ஔʢϢʔβʔೖྗɺσόΠεηϯαɺϓογϡ௨஌ͳͲʣ
    ΛͲ͏ඇಉظతʹѻ͏͔
    ͳͲ͸ɺϢʔβʔͱ௚઀΍ΓͱΓ͢ΔΞϓϦʹ͓͍ͯ͸ཱ೿ͳυϝΠϯ
    ʢۀ຿ͷؔ৺ʣͱݴ͑ΔͩΖ͏2
    2 ʮ௖্ͷؔ৺͸S (S R ),
    தෲͷؔ৺͸S (S E e )Ͱ͋Δʯͱ͍͏ݴ͍ํ΋Ͱ͖Δɻ
    3
    

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40. Q.
    ΫϥΠΞϯτΞϓϦͰ͸ɺΫϦʔϯΞʔΩςΫ
    νϟͷߟ͑͸ద༻Ͱ͖ͳ͍ͷ͔ʁ
    A.
    ͍͍͑ɻ
    ΫϦʔϯΞʔΩςΫνϟʹ૑քࢁͰ͸ͳ͍
    ࢁͷதෲʹখࢁΛ࡞ͬͯ΋͍͍͜ͱ͸ݴٴͨ͠ͱ
    ͓Γ
    ෳࡶʹͳΔ৔߹ɺద੾ʹந৅ϨΠϠΛઃ͚Δର৅
    4
    

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41. C ຊ ୈ1 ষʮํ਑ͱϨϕϧʯΑΓ
    ୯७Խ͞Εͨ૑քࢁʹҾ͖ͣΒΕͣɺ
    ࢥߟఀࢭͤͣʹஸೡʹઃܭ͍͖ͯ͠·͠ΐ͏
    ྫͷਤͷઆ໌͸C ຊͷୈ2 ষ͚ͩ
    Ή͠Ζ࢒Γͷ෦෼͕େࣄʂ
    4
    

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42. • C ຊ ୈ1 ষʮڥքͷղ๤ֶʯ
    • σϓϩΠίϯϙʔωϯτ
    • εϨου
    • ϩʔΧϧϓϩηε
    • αʔϏε
    • C ຊ ୈ2 ষʮ෦෼తͳڥքʯ
    • ࠷ޙͷεςοϓΛলུ͢Δ
    • ยํ͚ͩͷڥք
    • F
    4
    

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43. ֓೦
    4
    

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44. ࣮ࡍ
    4
    

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45. ͪͳΈʹ: αʔό૑քࢁ຺ͱͷ۩ମతͳઓ͍ํ
    • B (B s o F d )
    • ΫϥΠΞϯτ͸ϚΠΫϩαʔϏεͷϋϒ
    • ௨৴ͷू໿ɾϩδοΫͷڞ༗ʹ໾ཱͭ
    • M F d
    • Ұ෦͚ͩW Ͱදࣔ͢ΔΑ͏ͳΠϝʔδ
    • ࢁʹඌ͕ࠜ௨ͬͨʂ
    ͞·͟·ͳ޻෉ͰɺΞϓϦͷ֎ʹෳࡶੑΛ௥͍΍
    Δ͜ͱ͸Ͱ͖Δ
    ʢͦΕ͕ৗʹਖ਼ղͱ͸ݶΒͳ͍͚Ͳʣ
    4
    

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46. ·ͱΊ
    • C ͷಉ৺ԁ͸૑քࢁ
    • ૑քࢁ຺͸ͭΒ͍
    • ΫϥΠΞϯτΞϓϦͷࢁ௖͸͠͹͠͹Χϧσϥ
    • ࢁͷதෲʹ΋ந৅͸͋Δ͜ͱΛ๨ΕΔͳ
    • ஸೡʹڥքΛҾ͜͏
    • ʰຐਆӳ༤఻ϫλϧ ࣣࠢͷཾਆؙʱ͸2 ೥य़
    Y ʹͯ഑৴
    4
    

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