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"Microservices" is dead. Long live "Microservices". #ginzarails

qsona
December 21, 2018

"Microservices" is dead. Long live "Microservices". #ginzarails

銀座Rails #4

qsona

December 21, 2018
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  1. "Microservices" is dead.

    Long live
    "Microservices".
    @qsona / FiNC Technologies Inc.
    2018-12-21 ۜ࠲Rails#4 @ϦϯΫΞϯυϞνϕʔγϣϯ
    #ginzarails

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  2. "Microservices fundamentalism"
    is like abstinence-only sex ed:
    ϚΠΫϩαʔϏεݪཧओٛ͸ɺېཉͷΈ͔ΒͳΔੑڭҭͷΑ͏ͩɻ

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  3. Over the years,
    the "Microservices rhetoric"
    got louder and angrier.
    More mean-spirited.
    ௕೥ʹΘͨͬͯɺϚΠΫϩαʔϏεͷϨτϦοΫ

    (੣࣮͞ͷͳ͍ඒࣙྷ۟)͸ɺ
    ͏Δ͘͞ɺౖΓͬΆ͘ɺڱྔʹͳ͖ͬͯͨɻ

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  4. ͜Ε͸ͳʹ
    • TDD is dead. Long live testing. (by DHH)

    ͱ͍͏໊ΤϯτϦͷվม
    • ͝ଘ͡ͳ͍ํ͸

    ςετۦಈ։ൃ

    ෇࿥CΛඞಡʂ

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  5. Θͨ͠͸ͩΕ
    • @qsona, ϚΠΫϩαʔϏεԺ݈೿

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  6. Microservices ݪཧओٛʁ

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  7. ྫ: ίϯ΢ΣΠͷ๏ଇ
    • ૊৫ͷߏ଄ͱٕज़ͷߏ଄͸Ұக͍ͯ͘͠ɺͱ
    ͍͏๏ଇ

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  8. ίϯ΢ΣΠͷ๏ଇݪཧओٛ
    • 1αʔϏεɾ1νʔϜ͡Όͳ͍ͱͩΊ
    • ૊৫ΛׂΒͳ͍ͳΒɺαʔϏεΛׂΔҙຯ͸
    ͳ͍
    • 100ਓҎ্ͷ૊৫͡Όͳ͚Ε͹΍ͬͪΌͩΊ

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  9. ※ಉ྅Ͱ͢(@ota42y͞Μ)

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  10. (ͪͳΈʹ಺༰͸͍͍ͩͨಉҙ)
    it depends...
    agree

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  11. Microservices ݪཧओٛ...?
    • গͳ͘ͱ΋ Martin Fowler ΍ Sam Newmanͷ
    ͜ͱͰ͸ͳ͍
    • ൴Βͷൃ৴͸ɺͱͯ΋ͱͯ΋੣࣮
    • Ұ෦Λ੾Γऔ֦ͬͯେղऍ͠ɺڧ͗͢Δൃ৴
    ͕ͳ͞ΕΔ͜ͱ͕͋Δ

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  12. qsonaͷॴײ
    • શͯͷڧ͍ҙݟ (ݪཧओٛ) ͸ɺ͋ΔίϯςΩετΛ
    ݩʹൃ৴͞ΕΔ
    • ࣮ࡍͷݱ৔Λࢧ͑ΔΞϓϦέʔγϣϯΤϯδχΞͷ
    ࢹ఺͸ɺஔ͍͚ͯ΅Γʹ͞Ε͍ͯΔΑ͏ʹײ͡Δ
    • ࠷ۙɺϚΠΫϩαʔϏεͱ͍͏ݴ༿Λൃ͢Δͷ͕͸
    ͹͔ΒΕΔΑ͏ʹͳͬͨ...

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  13. qsonaͷॴײ
    • "counterintuitive ram" (௚ײʹ൓͢Δഁ৓Ṁ)
    ͱͯ͠ɺݱঢ়Λม͑ΔͨΊʹɺݪཧओٛతͳ
    ҙݟΛڣͿɺͱ͍͏͜ͱ͸͋Δ͕....
    • Microservices ʹ͓͍ͯɺͦ͏͍͏ϑΣʔζ͸
    ੈքతʹݟͨΒͱͬ͘ʹա͗ڈ͍ͬͯΔ

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  14. qsonaͷॴײ
    • ίϯ΢ΣΠͷ๏ଇݪཧओٛͰ͍͏ͱ...
    • ٕज़ͱಉ༷ɺ૊৫΋΍͸Γ໨తͰ͸ͳ͍
    • ٕज़ͱ૊৫ͷ྆ྠͰɺϏδωεɾϓϩμΫτʹ޲͖߹͍ͬͯ͘΋
    ͷ
    • ٕज़ͷϦΞʔΩςΫτʹ͸͕͔͔࣌ؒΔ
    • αʔϏεͷ୯Ґ = ૊৫ ͕ৗʹ੒Γཱͭ΄ͲϏδωε͸୯७Ͱ͸ͳ͍
    • ݪཧओٛతओு͸ɺݱ৔ͷ໰୊ͱઓ͏ਓʹ͸ڹ͔ͳ͍

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  15. What is "Microservices" ?
    • ҰݴͰ͸આ໌Ͱ͖ͳ͍͠ɺ໌֬ͳఆٛ΋ͳ͍
    • ίϯηϓτͷू߹ͱɺपลͷΤίγεςϜͱ
    ͯ͠ଊ͑ͯ΄͍͠

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  16. "Microservices" as a Concept
    • ϏδωευϝΠϯͰαʔϏεΛ෼ׂ͢Δ͜ͱ
    • αʔϏεͷ౷߹ʹ͸ඪ४ͷٕज़Λ࢖͏͜ͱ
    • ୯Ұ੹೚ݪଇɺૄ݁߹ͱߴڽूɺetc
    • ϚΠΫϩαʔϏεͷʮྑ͞ʯΛ୲อ͢ΔྖҬ
    • ॳग़͔Βશ͘มΘ͍ͬͯͳ͍

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  17. "Microservices" as an Ecosystem
    • Docker, Kubernetes, ECS / GKE
    • CI/CD πʔϧ
    • Envoy, Service Mesh (Istio, AWS App Mesh)
    • ϚΠΫϩαʔϏεͷʮσϝϦοτʯΛফ͢ྖҬ
    • ೥ʑਐԽ͍ͯ͠Δ

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  18. Concept & Ecosystem
    • ίϯηϓτΛ஌Γɺඞཁͳͱ͖ʹऔΓೖΕΔ͜ͱͰɺϝ
    ϦοτΛڗड͠ɺ
    • ΤίγεςϜʹ͏·͘৐Δ͜ͱͰɺ

    σϝϦοτΛݮΒ͢
    • ͦ͏͍͏͏·͍෇͖߹͍ํΛ͢Ε͹ɺϚΠΫϩαʔϏε
    ͸ΈΜͳͷຯํʹͳΔ
    • ͱ͍͏ओுΛ͜Ε͔Β͍͖͍ͯͨ͠

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  19. Q. Mircoservices Λ΍ͬͪΌ͍
    ͚ͳ͍ձࣾ͸ʁ
    • ͳ͍…ͱ͍͍͍͕ͨɺ͋Δ͔΋͠Εͳ͍
    • ௒ελʔτΞοϓͰ
    • ·ͩϓϩμΫτΛϩʔϯνͯ͠ͳͯ͘
    • ΤϯδχΞ͸ֶੜ͚ͩ...

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  20. FiNC ❤ Microservices
    • "ϚΠΫϩαʔϏε" ͱ͍͏ݴ༿Λ஌Βͳ͍͏ͪ
    ͔ΒϚΠΫϩαʔϏεΛࢦ޲͍ͯͨ͠
    • ʮҰੜʹҰ౓ͷ͔͚͕͑ͷͳ͍ਓੜΛαϙʔτ
    ͢ΔʯͨΊͷ Microservices Λ΍Γ͍ͨਓ͸੠
    Λ͔͚ͯ΄͍͠
    • We are hiringɺਅ݋ʹ࠾༻΍ͬͯ·͢

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  21. શͯͷձ͕ࣾͦ͏Ͱ͸ͳ͍
    • ՝୊ͷઃఆ͸༷ʑɺ໨త΋༷ʑ
    • ਎ۙͳ໰୊Λղܾ͢Δձࣾ΋͋Δ
    • খ͞ͳϓϩμΫτΛ࡞Γଓ͚Δձࣾ΋͋Δ
    • ͦ͏͍͏ձࣾ΍ΤϯδχΞʹͱͬͯɺ

    Microservices ͸ແԑͳͷ͔ʁ

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  22. To be continued...

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  23. Rails and Microservices
    • Rails ͔ΒݟΔͱɺ Microservices ͸

    ࣗ෼ͱ͸ҧ͏ྖҬͷ໰୊Λղܾ͢Δଘࡏ
    • Rails ʹ଍Γͳ͍ͱ͜ΖΛ

    Microservices Ͱิ׬Ͱ͖Δ

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  24. ͓·͔ͤ vs ΞϥΧϧτ

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  25. Easy vs Simple
    ;ͭ͏ͷRailsΞϓϦέʔγϣϯ։ൃ, Takafumi ONAKA
    https://www.slideshare.net/takafumionaka/rails-77195340

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  26. "Easy" is Difficult.
    • Easy Λҡ࣋͢Δͷ͸Ή͔͍ͣ͠

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  27. Is Rails "Easy"?
    • Rails ͸ͲΜͳ໰୊ʹର͢Δ౴͑Λ༻ҙͯ͠Δ
    Θ͚Ͱ͸ͳ͍
    • ͦΜͳສೳͳEasy͸ଘࡏ͠ͳ͍

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  28. Rails ͱ େن໛։ൃ

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  29. Rails ͱ େن໛։ൃ
    • جຊతʹ͸ "தن໛" ·ͰͷΞϓϦέʔγϣϯ
    Λߴ଎ʹ࣮૷͢Δͷʹ޲͍͍ͯΔ
    • େن໛ʹͳΔͱ೉͘͠ͳΔଆ໘͋Γ
    • ੩తܕ෇͚, ϞδϡʔϧԽ, Dependency
    Injection, Event sourcing ͷ࢓૊ΈͳͲ͸ͳ͍

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  30. Rails Λ֦ு͢Δʁ
    • Service Object, Form Object
    • Decorator
    • Trailblazer
    • ...

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  31. Rails Λ֦ு͠ͳ͍
    • ͋Δఔ౓ͷൣғ·Ͱ͸ Rails ( + PlainͳΫϥ
    ε ) Ͱ͏·͘΍Γ
    • Rails Ͱ͏·͘΍ΕΔൣғΛӽ͖͑ͯͨΒɺ
    αʔϏεΛ෼ׂ͍ͯ͘͠ɺͱ͍͏ߟ͑ํ

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  32. ྫ: Πϕϯτιʔγϯά
    • ୯ҰͷRailsαʔϏε಺ͰΠϕϯτιʔγϯά
    ͢ΔͱɺͦΕͳΓʹ໰୊͕ى͖΍͍͢
    • ActiveRecordͷcallbackΛ࢖͏ͱɺҙਤͤͣ
    ʹൃಈ͢Δ໰୊͕ى͖͕ͪ
    • transaction ͷൣғ͸ʁ

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  33. Ұͭͷߟ͑ํ
    • ୯ҰͷRailsαʔϏε಺Ͱ͸ɺΠϕϯτιʔγϯά͠ͳ͍
    (callback͸͘͝ݶఆత༻్Ͱ)
    • ͦͷ͔ΘΓɺ୯ҰαʔϏε಺ͷtransaction͸୲อ͢Δ
    • ෳ਺αʔϏεؒ͸Πϕϯτιʔγϯά͠ɺ݁Ռ੔߹ੑΛ
    ୲อ͢Δ
    • ྫ͑͹ GCPͷ Cloud Pub/Sub ࢖͏

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  34. ϝϦοτΛड͚Δ͜ͱͱɺ
    σϝϦοτ΁ͷରॲ
    • ݸผσϓϩΠ, ো֐ہॴԽ, ݸผεέʔϦϯά
    ͳͲͷԸܙΛಉ࣌ʹड͚Δ
    • ෼ࢄΩϡʔ, ෼ࢄτϨʔγϯά, etc... ͷۤ͠Έ
    Λड͚Δ
    • ͜ΕΛࢧ͑ΔΤίγεςϜ͸ݱࡏඇৗʹ੝Γ
    ্͕͍ͬͯΔ

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  35. Rails ͱ γεςϜ෼ׂ

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  36. γεςϜ෼ׂͷ؍఺
    • جຊతʹRailsαʔϏε͕Ͱ͔͘ͳΔͱਏ͍ͷͰɺԿ
    Β͔ͷ෼ׂͨ͘͠ͳΔ (ͱ͜͜Ͱ͸Ծఆ͢Δ)
    • ٕज़తͳ؍఺ʹԊͬͯ෼ׂ͢Δਓ͕ଟ͍
    • ؅ཧը໘Railsɺόον༻Railsɺetc...
    • ϚΠΫϩαʔϏεͰ͸ɺϏδωευϝΠϯʹͦͬͯ
    ෼ׂ͢Δ

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  37. Α͋͘ΔγφϦΦ
    • αʔϏεͷϦϦʔεͱ؅ཧը໘ͷϦϦʔε͸෼཭͍ͨ͠
    Ͷɾɾɾ
    • ؅ཧը໘༻ͷRails͕ര஀
    • Shared Database Pattern ΍ Shared ORM Pattern (෼அ͞
    ΕͨϞϊϦε)
    • ςʔϒϧͷεΩʔϚมߋͳͲ͕͓ޓ͍ʹӨڹ͢ΔΑ͏ʹ
    ͳͬͯਏ͍

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  38. Α͋͘ΔγφϦΦ
    • ؅ཧը໘Λ෼཭͍͚ͨ͠Ͳɺڞ༗DB͸Ξϯν
    ύλʔϯͩΑͶɾɾɾ
    • ؅ཧը໘͸Single Page AppͰ࡞Δ
    • ؅ཧը໘޲͚ͷAPIΛ͕Μ͹ͬͯ։ൃ͢Δ
    • ͦΕ͸ Rails ΤϯδχΞͷຊ๬ͩͬͨͷ͔...?

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  39. Rails ͷྑ͞Λੜ͔͍ͨ͠
    • View·ͰαΫοͱศརʹ࡞ΕΔͷ͕Railsͷྑ
    ͞͡Όͳ͍͔
    • ؅ཧը໘ΛSPAʹ෼཭ͱ͔ɺࢷΛམͱͨ͠
    ύοαύαͷRailsͰ͸...

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  40. ϏδωευϝΠϯͰ෼ׂ͠Α͏
    • ϏδωευϝΠϯͷڥքΛݟ͚ͭΑ͏
    • Domain-Driven Design ͷग़൪
    • ͦͷڥքʹԊͬͯ෼ׂ͠Α͏
    • ͦͷ͔ΘΓɺ؅ཧը໘·Ͱ֤αʔϏεͰఏڙ
    ͠Α͏

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  41. ؅ཧը໘ͷ౷߹͸ʁ
    • ͜ͷํ๏ʹ͢Δͱɺ؅ཧը໘͕ࢄΒ͹Δ
    • ΞΧ΢ϯτ
    • σʔλͷ౷߹
    • UIͷ౷߹/౷Ұײ

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  42. ΞΧ΢ϯτͷ౷߹
    • SAML ౳ͷඪ४ٕज़Λར༻ͨ͠ Single Sign-onΛ࣮૷
    ͢Δ (language-agnostic)
    • ͦͷ্ͰɺRailsʹ޲͚ͨศརͳํ๏΋༻ҙ͢Δ
    • ྫ͑͹ɺ Rails Engine ͷgemΛಋೖ͢Δ͚ͩͰͰ͖
    ΔΑ͏ʹ͢Δ
    • ඪ४ + ศརϥΠϒϥϦͷೋஈߏ͑

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  43. σʔλͷ౷߹
    • લఏͱͯ͠ɺσʔλΛ౷߹ͯ͠ѻ͏͜ͱʹ͸
    σϝϦοτ΋͋Δ
    • ݸਓͷηϯγςΟϒͳ৘ใͷΞΫηείϯ
    τϩʔϧ͕೉͘͠ͳΔ

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  44. σʔλͷ౷߹
    • ࠷௿ݶͷ৘ใ͸APIͰ࿈ܞ͢Δ
    • ৔߹ʹΑͬͯ͸ڞ༗DB (֎͔Β͸ Read Only)
    • εΩʔϚมߋͰ؅ཧը໘͕յΕΔՄೳੑ͕
    ͋Δ͕ɺ਺೔ͷμ΢ϯλΠϜ͕ڐ͞ΕΔͳ
    ΒͦΕͰ΋͍͍

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  45. UIͷ౷߹
    • ϦϯΫू΍ɺڞ௨ͷϔομʔ͕͋Ε͹ڐ͞Ε
    ΔͳΒͦΕͰ͍͍
    • ແཧͯ͠౷߹͢Δͱେม
    • ෳ਺ͷαʔϏεͷίϯϙʔωϯτΛɺ΋ͬͱ
    ߴ౓ʹ౷߹ɾ࿈ܞ͍ͯ͘͠ʹ͸ɾɾɾʁ

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  46. Micro Frontends
    • ͜ͷಓΛಥ͖٧Ί͍ͯ͘ͱ Micro Frontends

    ͱ͍͏ΞʔΩςΫνϟʹͳ͍ͬͯ͘
    • ֤αʔϏε͕ Web Components Λఏڙ͠ɺ

    ౷߹ϨΠϠʔ͕ͦΕΒΛ഑ஔ͢Δ
    • ֤Component͸ΠϕϯτͳͲͰڠௐͯ͠ಈ͘

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  47. ྲྀΕͷ͓͞Β͍
    • ϏδωευϝΠϯͰ෼ׂ͢Δ (ίϯηϓτ)
    • αʔϏε෼ׂΛߦ͍ͳ͕Β΋ɺ

    ؅ཧը໘͕؆୯ʹͭ͘ΕΔ (ϝϦοτ)
    • ؅ཧը໘ͷମݧ౳͕෼ׂ͞ΕΔ (σϝϦοτ)
    • ؅ཧը໘ͷ౷߹ΛɺඞཁʹԠͯ͡

    ஈ֊తʹߦ͍ͬͯ͘ (ΤίγεςϜͷࢧԉ)

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  48. ఻͍͑ͨ͜ͱ
    • ʮϏδωευϝΠϯͰ෼ׂ͢Δʯ

    = ίϯηϓτ
    • ͦΕʹΑΓϝϦοτ͕ಘΒΕΔ
    • ͦͷίϯηϓτͷ΋ͱʹΤίγεςϜ͕ൃల
    ͠ɺಓ͸੔උ͞Ε͍ͯ͘

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  49. FiNC ❤ Micro Frontends
    • Micro Frontends ͷಓ͸զʑ͕ઌಋ͢Δ
    • ຊ౰ʹඞཁͱ͍ͯ͠Δ͔Β΍Δ
    • ΋ͪΖΜɺ୭΋͕ඞཁͱ͢ΔΞʔΩςΫνϟͰ
    ͸ͳ͍
    • େࣄͳͷ͸ɺઌʹਐΈ͍ͨͱ͖ͷಓ͕͋Δ͜ͱ

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  50. ͔͜͜Β͸ࡶଟͳ࿩

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  51. Rails ͱ Ϋϥ΢υαʔϏε

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  52. Rails ͱ Ϋϥ΢υαʔϏε
    • Web αʔϏεͷकඋൣғͷ֦େ
    • ྫ͑͹ IoT ͷձࣾ => AWS IoT ͱͦͷपลͷ
    ϚωʔδυαʔϏεΛϑϧ׆༻͍ͨ͠
    • ͚ͩͲɺWebαʔϏε΍ϞόΠϧΞϓϦ޲͚
    API͸ Rails Ͱఏڙ͍ͨ͠

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  53. ΞʔΩςΫνϟͷҰྫ
    • Web αʔϏε͸ Rails
    • AWS ޲͚ʹ͸ Serverless Framework Λར༻͢Δ
    • ࣮ଶͱͯ͠͸ AWS Lambda ʹσϓϩΠ͞ΕΔ
    • ϝϦοτ
    • Web API ΍ SNS/SQSͰͷΠϕϯτͳͲɺ࿈ܞΛ͢Δͷ͕؆୯ʹग़དྷΔʂ
    • AWS IoT ΍ DynamoDB ͳͲͷ௿ϨϕϧͳίϯϙʔωϯτΛ Rails ͕ҙࣝ
    ͠ͳ͍Ͱྑ͘ͳΓɺૄ݁߹ʹͳΔ

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  54. ٕज़ҟ࣭ੑ /
    Language-agnostic

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  55. Language-agnostic
    • ϓϩάϥϛϯάݴޠʹඇґଘͳٕज़બఆ
    • ྫ: Sidecar Pattern (Envoy ͳͲ)

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  56. "ඪ४"΁ͷҙࣝ
    • ݴޠඇґଘͳ෦෼Λଟ͘࢒͢બ୒

    => ٕज़ͷඪ४ੑʹҙ͕ࣝ޲͘
    • ٕज़બఆʹ͓͚Δɺࢹ఺ͷ޿͕Γ

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  57. ྫ: Web API ࢓༷
    • Web API ΛͲͷΑ͏ͳܗࣜͰఏڙ͢Δ͔?
    • RESTful + JSON + OpenAPI
    • RESTful + ಠࣗϑΥʔϚοτ + JSON + Open API
    • JSON API (RESTfulͳAPIͷҰͭͷ࢓༷)
    • Netflix/fast_jsonapi : JSON API ܗࣜΛαϙʔτ͢Δgem
    • GraphQL + JSON
    • gRPC + Protocol Buffers

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  58. ྫ: Web API ࢓༷
    • ΋ͪΖΜɺ།Ұͷ౴͑͸ͳ͍͕…
    • ͲͷΑ͏ͳࢹ఺Λ΋ͬͯબఆ͢Δ͔
    • ໨ͷલͷ՝୊ʹରॲ͢Δ͜ͱ͸ɺ

    ΋ͪΖΜେࣄ͕ͩ
    • ଞݴޠͰ΋࣮૷Ͱ͖Δ͔ʁͱ͍͏ࢹ఺Λ΋ͭ

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  59. ྫ: Web API ࢓༷
    • RESTful + OpenAPI ͳΒɺ࠷ѱOpenAPI͕ඇରԠͷݴޠΛ
    ࢖ͬͯ΋μϝʔδ͕গͳ͍
    • ಠࣗϑΥʔϚοτ΍ࣗલϥΠϒϥϦΛఆٛ͗͢͠Δͱɺଞͷݴ
    ޠʹߦͬͨͱ͖ʹ͖͍ͭΑͶ..
    • JSON API, GraphQL, gRPC
    • ίϛϡχςΟͷαϙʔτঢ়گ͸Ͳ͏͔ʁ
    • ࠷ѱɺࣗ෼Ͱ࣮૷ͨ͠ΓOSSߩݙͰ͖ΔϨϕϧ͔ʁ

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  60. "ඪ४" ΁ͷؔ৺
    • ඪ४Խ΍ίϛϡχςΟαϙʔτʹର͢Δؔ৺
    ͸ɺٕज़తͳ੒௕Λଅ͢ɺͱ͍͏Ծઆ

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  61. ·ͱΊ
    • ·ͱ·Γ·ͤΜͰͨ͠ɺ͝ΊΜͳ͍͞
    • ׬શͳΔྗྔෆ଍
    • ࿦ཧͷཪ෇͚΋গͳ͔ͬͨ...
    • λΠτϧͰ௼ͬͯ͢Έ·ͤΜͰͨ͠...͢Έ·ͤ
    Μ͢Έ·ͤΜ...

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  62. ݴ͍͔ͨͬͨ͜ͱ
    • "ϚΠΫϩαʔϏε" ͱ͍͏ݴ༿ʹଉۤ͠͞Λײͨ͘͡ͳ
    ͍ɾײͯ͡΄͘͠ͳ͍
    • RailsΤϯδχΞʹ "ࣗ෼ʹ͸ϚΠΫϩαʔϏε͸ؔ܎ͳ͍"
    ͳΜͯࢥͬͯ΄͘͠ͳ͍
    • খ͞ͳ૊৫Ͱ΋ϚΠΫϩαʔϏεΛҙ͍͍ࣝͯ͠
    • "ϚΠΫϩαʔϏε΍ͬͯ·͢" ͬͯݴͬͨΒୟ͔ΕΔੈͷ
    த͸·ͬͽΒͩ

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  63. ݴ͍͔ͨͬͨ͜ͱ
    • ίϯηϓτΛཧղ͠ɺ͏·͘औΓೖΕΔͱ͜
    Ζ͔Β࢝ΊΑ͏
    • ΤίγεςϜΛ஌Γɺ

    ͏·͘৐Γ͜ͳͦ͏

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  64. "Microservices"
    Everywhere.

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