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ʮ৔ʯʹ͓͚Δ ৺ཧత҆શੑ υϠΦ λΫϩ΢

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υϠΦ λΫϩ΢ʢ౔԰ඌ ୓࿠ ※ຊ໊ʣ • ΩϟϦΞͷதͰ͸ϓϩάϥϚʔ͔Β δϣϒνΣϯδͯ͠ɺ࠷ۙॳΊͯϚ ωδϝϯτΛ࢝Ίͨɻ • খ͍͞νʔϜͳͷͰ࠾༻͔Βγες Ϝӡ༻·ͰɺͳΜͰ΋԰ • ίϯϏχґଘ঱ • 1೔1৯ʢ໷ͷΈʣ͍݈ͨͬͯ߁ • 2ࣇͷ෕਌ • Scala, Rails, AWS

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ҎલผͷΠϕϯτʹͯ… (ࢀর: https://www.wantedly.com/companies/connectom/post_articles/50300 )

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ڭ͑ํϔλͱ͍͏λΠτϧͰɺ ʮΦʔμʔͬ͘͟Γͳͷʹɺਖ਼ղͷϚτ͕Ίͬ ͪΌখ͍͞໰୊ʯ ʹ͍ͭͯ࿩͠·ͨ͠ɻ

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ͲΜͳ಺༰͔ͩͬͨͱ͍͏ͱɺ Ϧʔμʔ΍Ϛωʔδϟʔ͔Βͷϝϯόʔʹର͢ Δئ͍͸ɺʮཱࣗࣗ͠ൃతʹಈ͍ͯ͘ΕΔ͜ͱʯ ͱ͍͏ͷ͕େલఏ͋Γʢ※ࢲݟͰ͢ʣɺ Φʔμʔ͕ߥ͍͜ͱ͕࢓ํ͕ͳ͍͜ͱͩͱ͢Δ ͱʢৄࡉͳࢦࣔॻΛॻ͙͘Β͍Ͱ͋Ε͹ɺͦͷ৔Ͱ࡞ۀͯ͠͠·ͬ ͨ΄͏͕ૣ͍͜ͱ΋͋Δ͠ɺࢦࣔॻ͕ؒҧ͍ͬͯͨͱ͖ʹ͸Կ΋ੜ· Εͳ͍Մೳੑʣɺ൴ΒͷΞ΢τϓοτΛͲͷΑ͏ͳ ʮදݱʯͰධՁ͠ɺ৺ཧత҆શΛߏங͍ͯ͘͠ ͔ɺͱ͍͏͜ͱΛ࿩͠·ͨ͠ɻ

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ࠓճ͸ɺʮ৺ཧత҆શੑʯ ʹ͍ͭͯਂ۷Γ

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৺ཧత҆શੑ • ͋Δಛఆͷʮ৔ʯʹ͓͍ͯɺࣗ෼͕ࢥͬͨ͜ͱΛɺʮʢ൷ ൑ͳͲʹʣڪාΛ๊͘ʯ͜ͱͳ͘ɺ͞Β͚ग़ͤΔͱ͍͏ ৺ཧঢ়ଶɻ • ͜͏͍ͬͨ҆શੑ͕ແ͍ঢ়ଶͰͷྑ͘ͳ͍͜ͱ͸ɺʮ͜ ͏΍ͬͯΈΑ͏ʯʮ͜͏΍ͬͯΈͨΒ͍͍Μ͡Όͳ͍͔ʯ ͳͲͷࣗ༝ͳൃ૝͕ੜ·Εʹ͍͘ঢ়ଶͰ͢ɻ • ࣦഊʹର͢ΔڪΕ΋͋ΔͷͰɺࣗൃతͳߦಈ΋ੜ·Εͳ ͘ͳΓ·͢ɻ

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ʮ৔ʯ...ʁ ࠷ۙ·Ͱ֮ࣗతͰ͸͋Γ·ͤΜͰ͕ͨ͠ɺ ৺ཧత҆શͱ͸ʮݸਓʯʹର๊ͯ͘͠΋ͷͱࢥͬ ͍ͯͨͷͰ͕͢ɺ ࢀՃऀશһ͕ἧͬͨʮ৔ʯͱ͍͏΋ͷʹରͯ͠ ײ͡Δ΋ͷͩͱɺ͋ΒͨΊͯೝࣝ͢Δ͖͔͚ͬ ͕͋Γ·ͨ͠ɻ

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͋Δʮ৔ʯͰͷྫ1 ͜Μͳ͜ͱ͋Γ·ͤΜ͔ʁ ࣗ෼͕ͳΜͰ΋࿩͢A͞Μͱɺ ࣗ෼͕·͋·͋ձ࿩͢ΔB͞Μͷ ࣗ෼΋ؚΊ3ਓ͕ಉ͡৔ʹ͍ͨͱ͖ʹɺ Կނ͔ࣗ෼ͷޱ਺͕গͳ͘ͳΔɻɻɻ

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͋Δʮ৔ʯͰͷྫ1 ࣗ෼͕ͳΜͰ΋࿩͢A͞Μͱɺ ࣗ෼͕·͋·͋ձ࿩͢ΔB͞Μͷ ࣗ෼΋ؚΊ3ਓ͕ಉ͡৔ʹ͍ͨͱ͖ʹɺ Կނ͔ࣗ෼ͷޱ਺͕গͳ͘ͳΔɻɻɻ ͋Δʮ৔ʯ ʢB͞Μʣ ʢA͞Μʣ ʢࣗ෼ʣ Α ͘ ࿩ ͢ ·͋·͋࿩͢ ̋☓˚…! ̋☓˚…! ……

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͋Δʮ৔ʯͰͷྫ2 ͜Μͳ͜ͱ͋Γ·ͤΜ͔ʁ ࣗ෼͕ͳΜͰ΋࿩͢C͞Μͱɺ ࣗ෼͕ͳΜͰ΋࿩͢D͞Μͷ ࣗ෼΋ؚΊ3ਓ͕ಉ͡৔ʹ͍ͨͱ͖ʹɺ C͞Μ or D͞Μͷޱ਺͕গͳ͘ͳΔɻɻɻ

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͋Δʮ৔ʯͰͷྫ2 ࣗ෼͕ͳΜͰ΋࿩͢C͞Μͱɺ ࣗ෼͕ͳΜͰ΋࿩͢D͞Μͷ ࣗ෼΋ؚΊ3ਓ͕ಉ͡৔ʹ͍ͨͱ͖ʹɺ C͞Μ or D͞Μͷޱ਺͕গͳ͘ͳΔɻɻɻ ͋Δʮ৔ʯ ʢࣗ෼ʣ ʢC͞Μʣ Α ͘ ࿩ ͢ ʢD͞Μʣ Α͘࿩͢ ̋☓˚…! …… ……

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ͳͥɺޱ਺͕ݮΔͷ͔

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ͳͥɺޱ਺͕ݮΔͷ͔ ͬ͘͟Γ͍͏ͱʮ൷൑ʹର͢Δڪාʯ͕͋Δɻ ͭ·ΓͲͷΑ͏ͳ൓Ԡ͕ฦͬͯ͘Δ͔Ͳ͏͔͕ Θ͔Βͳ͍ͷͰɺҤॖͯ͠͠·͏

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ͳͥɺޱ਺͕ݮΔͷ͔ 1 ʮݸਓʯʹରͯ͠ͲͷΑ͏ͳ൓Ԡ͕ฦͬͯ͘Δ ͔ɺΘ͔Βͳ͍ύλʔϯ ͋Δʮ৔ʯ ʢB͞Μʣ ʢA͞Μʣ ʢࣗ෼ʣ Α ͘ ࿩ ͢ ·͋·͋࿩͢ ʢ͜ΕΛݴͬͨΒɺA͞Μ ͸ʮΠΠͶʯͱݴ͏ͱࢥ͏ ͚ͲɺB͞Μ͸ͲΜͳ൓Ԡ Λ͢Δ͔Θ͔Βͳ͍ʣ

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ͳͥɺޱ਺͕ݮΔͷ͔ 2 ʮ৔ʯ͔ΒͲͷΑ͏ͳ൓Ԡ͕ฦͬͯ͘Δ͔ɺΘ ͔Βͳ͍ύλʔϯ ͋Δʮ৔ʯ ʢB͞Μʣ ʢA͞Μʣ ʢࣗ෼ʣ Α ͘ ࿩ ͢ ʢ͜ͷ࿩୊ͬͯɺ͜ͷϝϯ πͰ࿩ͨ͜͠ͱແ͍ͳ͊ɻ ͳΜͯݴΘΕΔ͔ͳ͊ʣ Α͘࿩͢

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ͰɺͲ͏ͨ͠Βྑ͍͔ͱ͍͏࿩Ͱ͕͢ɺ

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جຊతʹ͸࣮ઓ͋ΔͷΈ ·Μ·Ͱ͕͢ɺ ʮ৔਺ʯΛ౿ΜͰ͍͖·͠ΐ ͏ʢসʣ

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΋͋͠ͳ͕ͨϚωʔδϟʔ΍ϦʔμʔͳͲɺͦ͏͍͏ ৔࡞ΓΛ͍ͨ͠ͱئ͍ͬͯΔཱ৔Ͱ͋Ε͹ʢϝϯόʔ Ͱ΋΋ͪΖΜྑ͍Ͱ͢ʣɺ ɾޱ਺ͷগͳ͍ਓͷҙݟΛɺʮ৔ʯʹ͓͍ͯͳΔ΂͘ Ҿ͖ग़͢ ɾޱ਺ͷগͳ͍ਓ͕҆શͩͱײ͡ΒΕΔΑ͏ʹɺҾ͖ ग़ͨ͠΋ͷΛ࿩୊ͱͯ͠޿͛ͨΓɺʮ৔ʯશମͰͷ൓ ԠΛ͏ͳ͕͢ ʢʮA͞Μɺ͋Γ͕ͱ͏͍͟͝·͢ɻ ɹB͞Μ͸ʢA͞ΜͷҙݟΛʣͲ͏ࢥ͍·͔ͨ͠ʁʯʣ

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্ख͍͍ͬͯ͘ͳ͍ঢ়ଶͷྫ ͦͷ৔Ͱͷʮࣗ෼ <=> A͞Μʯʮࣗ෼ <=> B͞Μʯͷձ࿩ͷͱ͖ʹ ࿩͠ख͕࣭໰ऀҎ֎Λݟ͍ͯͳ͍ ͋Δʮ৔ʯ ʢA͞Μʣ ʢB͞Μʣ Α ͘ ࿩ ͢ ʢB͞ΜɺͳΜ͔ͬͪͩ͜ ͚ݟͭΊͯ࿩ͯ͠Δͳ͊ʣ Α͘࿩͢ ʢࣗ෼ʣ ̋☓˚…!

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࠷ޙʹɺ ࠓޙͷνʔϜ֦ॆʹ޲͚ͯ஫ҙ͍ͨ͜͠ͱ

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νʔϜ֦ॆʹ޲͚ͯ஫ҙ͍ͨ͜͠ͱ ͜ͷΑ͏ͳʮ৔ʯ͸ɺࢀՃ͢ΔϝϯόʔʹҰਓͰ ΋มߋ͕͋Δͱଟগͷ΍Γ௚͕͠ൃੜ͠·͢ɻ ʢରݸਓʹ͓͍ͯɺ৽͘͠஌Γ߹ͬͨਓͱسጨͳ͘ҙݟ͕ަΘͤΔΑ͏ʹͳΔ· ͰɺͲΕ͘Β͍͕͔͔࣌ؒΔ͔ɺ૝૾ͯ͠ΈΔͱྑ͍ͱࢥ͍·͢ʣ ྫ͑͹ݱࡏ4໊ʢA~D͞ΜʣͷνʔϜʹ1ਓʢE͞ Μʣ͕ՃΘͬͨͱͯ͠ɺ ·ͣ͸ݸʑਓಉ࢜Ͱͷ৺ཧత҆શͱɺ࣍ʹνʔϜ શମͰͷ৺ཧత҆શͱߟ͑Δͱɺ͔ͳΓͷ࿑ྗ͕ ΠϝʔδͰ͖Δ͔ͱࢥ͍·͢ɻ

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νʔϜ֦ॆʹ޲͚ͯ஫ҙ͍ͨ͜͠ͱ ৔ͷ࠶ߏஙͷΠϝʔδྫ ͋ΔʮνʔϜʯ ͜Ε͔Β ͋ΔʮνʔϜʯ ͍··Ͱ ʢA͞Μʣ E͞Μ(New !) ̋☓˚…! ʢB͞Μʣ ʢC͞Μʣ ʢD͞Μʣ ʢA͞Μʣ ʢB͞Μʣ ʢC͞Μʣ ʢD͞Μʣ ̋☓˚…! …... …... …... E͞Μ͕ ૿͑ͯ...

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·ͱΊ

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·ͱΊ ৺ཧత҆શੑΛײ͡Δ৔࡞ΓɺେมͰ͢ɻ ͔ͩΒͱ͍ͬͯɺ৽͍͠ਓΛͳΔ΂͘औΓͨ͘ ͳ͍ͱ͍͏࿩Ͱ͸ͳ͘ɺ ৺ཧత҆શͱ͸ผͷ࿩Ͱ ૊৫͸ʮઈ͑ͣมԽʯ͍ͯͬͨ͠ΓʮܹࢗʯΛ औΓೖΕͳ͍ͱਰୀ͍ͯͬͯ͠͠·͍·͢ɻ

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·ͱΊ ਓ͕૿͑ΔͨͼͷεΫϥοϓ&Ϗϧυతͳ҆શͳ৔ ࡞Γ͸େมͰ͕͢ɺ ͦΕͰ΋ԯ߷ʹͳΒͣʹऔΓ૊ΜͰ͍͘ඞཁ͕͋Γ ·͢ɻ ئΘ͘͹ɺ͜͏͍ͬͨ৔࡞Γʹରͯ͠ ʮେม͚ͩͲਅ伨ʹͣͬͱऔΓ૊ΜͰ͍͖͍ͨʯ ͱڞ௨ೝࣝΛ΋ͬͨ஥ؒͱҰॹʹ΍͍͖͍ͬͯͨͰ ͢Ͷ

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ڪා͔Βղ์͞ΕΔͨΊʹ͸ɺ҆શͩͱײ͡ΒΕ ͳ͚Ε͹͍͚ͳ͍ɻ҆શͩͱײͨ͡Β࣮ݧ͢ΔΑ ͏ʹͳΔɻڐՄΛٻΊͳ͘ͳΔɻ௕ͯ͘ୀ۶ͳձ ٞΛආ͚ΔΑ͏ʹͳΔɻࣦഊΛආ͚ΒΕͳ͍΋ͷ ͱͯ͠ड͚ೖΕΔ৽͍͠จԽΛ࡞ΔΑ͏ʹͳΔɻ ʮδϣΠɾΠϯΫʯΑΓ

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ࢀߟ: • ॻ੶ʮࣗ෼ͷখ͞ͳʮശʯ͔Β୤ग़͢Δํ๏ʯ • ॻ੶ʮδϣΠɾΠϯΫ ໾৬΋෦ॺ΋ͳ͍શһओ໾ͷϚ ωδϝϯτʯ • هࣄʮී௨ͷ։ൃϝϯόʔ͕ Ϧʔμʔʹͳͬͯ΍ͬͨ͜ ͱʯ(https://speakerdeck.com/miuranobuki/pu-tong-falsekai-fa- menbaga-ridaninatuteyatutakoto)

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͋Γ͕ͱ͏͍͟͝·ͨ͠