マイクロサービスとクライアントとコンテキスト境界 / 20181030 #microserv

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ϚΠΫϩαʔϏεͱ  ΫϥΠΞϯτͱ  ίϯςΩετڥք For Microservices Meetup vol.9 2018/10/30 FiNC Technologies Inc. / iOS Development Team ؔ ོٛ(takasek)

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!2 ● ོؔٛ ● !UBLBTFL ● 'J/$5FDIOPMPHJFT ● $MJFOU&OHJOFFS J045FBN ࣗݾ঺հ

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!3 ● ʮJ04ΞϓϦઃܭύλʔϯೖ໳ʯ ڞஶ ● 1&",4ΑΓ݄ϦϦʔε༧ఆʂ IUUQTQFBLTDDJ04@BSDIJUFDUVSF .7$ .71 .77. 'MVY 3FEVY $MFBO"SDIJUFDUVSF ϞόΠϧಛ༗ͷىಈܦ࿏ɾը໘ભҠͷ੔ཧ·Ͱ໢ཏʂ ؔ͸ɺʮઃܭͱ͸Կ͔ʯͱ͍͏େ͖ͳओޠͰষ΄Ͳʂ ೥ .7$ ʙ͔Β࿈໖ͱଓ͘ ΞʔΩςΫνϟύλʔϯͷྺ࢙ͷ੔ཧʂ ϚαΧϦඞࢸͷϏοάΠγϡʔʹՌ׶ʹ௅Έ·ͨ͠ʂ એ఻

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!4 ຊ೔ͷ͓୊ ʮΫϥΠΞϯτɾαʔόؒͷ ίϯςΩετڥքΛͲ͜ʹஔ͔͘ʯ

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!5 ίϯςΩετڥքʁ ● ڥք಺Ͱ͸ɺϞσϧΛ࿦ཧతʹ౷Ұ͞Εͨঢ়ଶʹอͭ͜ͱ ● ͨͩ͠ɺڥքͷ֎ʹద༻Ͱ͖Δ͔Ͳ͏͔͸ؾʹ͢Δඞཁ͕ͳ͍ ʮ͋ΔϞσϧΛͲͷίϯςΩετͰ ɹద༻͢΂͖Ͱͳ͍ͷ͔ʯΛࣔ͢ - ΤϦοΫɾΤϰΝϯεͷυϝΠϯۦಈઃܭ ΑΓ

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!6 ίϯςΩετڥքʁ ˞ڥք͚ͮΒΕͨίϯςΩετΛఆٛͨ͠ΒɺͦΕΛ҆ఆͤ͞ͳ͚Ε͹ͳΒͳ͍ ● ಉ͡νʔϜͰ΋ɺίϛϡχέʔγϣϯ్͕੾Εͯ͠·͏ͱղऍ͕িಥ͠͏Δ ● ಉ͡νʔϜͰ΋ɺݹ͍ઃܭ৽͍͠ઃܭͰίϯςΩετڥքʹͳΔ ʮڥք͸νʔϜฤ੒ͷྠֲʹै͏ʯ - ΤϦοΫɾΤϰΝϯεͷυϝΠϯۦಈઃܭ ΑΓ

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!7 BFF BFF (Backends For Frontends) microservices Repository UseCase Domain ViewModel View Server side Client side

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!8 BFFʁ ΫϥΠΞϯτϩδοΫͷͨΊͷαʔό ● ௨৴ͷू໿ ● ू໿ϩδοΫͷڞ༗ Backends For Frontends

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!9 Repository BFF (Backends For Frontends) microservices Repository UseCase Domain ViewModel View Server side Client side

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!10 Repositoryʁ σʔλΛͲ͔͜Βऔಘ͢ΔͲ͜ʹӬଓԽ͢Δ͔Λߟ͑ͳ͍ ● ϝϞϦ ● ετϨʔδ ● ωοτϫʔΫ ● FUDʜ σʔλऔಘɾӬଓԽͷৄࡉΛӅṭ͢Δઃܭύλʔϯ

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!11 Repositoryʁ ෳࡶͳϩδοΫΛυϝΠϯ͔Β੾Γ཭ͨ͢ΊʹϦϙδτϦ૚Λઃ͚Δ ʮΫϥΠΞϯτ͕ඞཁͱ͢Δͷ͸ɺ ɹ͢Ͱʹଘࡏ͢ΔυϝΠϯΦϒδΣΫτ΁ͷࢀরΛखʹೖΕΔɺ ɹ࣮༻తͳखஈͰ͋Δʯ - ΤϦοΫɾΤϰΝϯεͷυϝΠϯۦಈઃܭ ΑΓ

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ʮ࣮ࡍʹ௚઀తͳΞΫηεΛඞཁͱ͢Δ ू໿ϧʔτʹରͯ͠ͷΈɺϦϙδτϦΛఏڙ͢Δ͜ͱʯ - ΤϦοΫɾΤϰΝϯεͷυϝΠϯۦಈઃܭ ΑΓ

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!13 ू໿ʁ ● ෆม৚݅ʢৗʹ੔߹ੑΛอ͍ͬͯΔඞཁͷ͋ΔϏδωεϧʔϧʣΛ  อূ͢Δ୯Ґ ● ू໿಺Ͱ͸੔߹ੑΛҡ࣋͢Δ

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!14 UseCase BFF (Backends For Frontends) microservices Repository UseCase Domain ViewModel View Server side Client side

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!15 UseCaseʁ ʮ%PNBJOʢ஌ࣝͷදݱʣΛͲͷΑ͏ʹ࢖͏͔ʯΛࣔ͢ 4૚ϨΠϠԽΞʔΩςΫνϟͰݴ͏ͱ͜ΖͷApplication૚

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!16 ViewModel, View BFF (Backends For Frontends) microservices Repository UseCase Domain ViewModel View Server side Client side

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!17 ViewModelʁ .77. .PEFM7JFX7JFX.PEFM ύλʔϯͷίϯϙʔωϯτ ͨͩɺΞʔΩςΫνϟͷ࢔ࡉ͸ࠓճओ୊Ͱ͸ͳ͍ ʮ.PEFM7JFXؒͷม׵૚ʯͱ͚ͩଊ͍͑ͯͩ͘͞ υϝΠϯϞσϧͷσʔλΛɺView༻ͷσʔλʹม׵͢Δ૚

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!18 Viewʁ આ໌ෆཁ ը໘දࣔΛ࢘Δ૚

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!19 ϚΠΫϩαʔϏεͱίϯςΩετϚοϓ BFF (Backends For Frontends) microservices Repository UseCase Domain ViewModel View Server side Client side

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!20 ຊ೔ͷ͓୊ (reprise) ʮΫϥΠΞϯτɾαʔόؒͷ ίϯςΩετڥքΛͲ͜ʹஔ͔͘ʯ

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!21 ίϯςΩετڥքΛͲ͜ʹஔ͔͘ɿBFF BFF (Backends For Frontends) microservices Repository UseCase Domain ViewModel View Server side Client side

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!22 BFFΛม׵૚ͱͯ͠ݟͳ͢ ● ϝϦοτ ● ੔߹ੑʹ͍ͭͯͷ৺഑ࣄΛυϝΠϯ͔Βഉআ ● ϓϥοτϑΥʔϜ J04"OESPJE౳ ͷॏෳ࣮૷Λഉআ ● σϝϦοτ ● #''ʹཔΓ͗͢Δʹ෼ࢄίϯϐϡʔςΟϯάͷݪଇ΁ͷ௅ઓ

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!23 ෼ࢄίϯϐϡʔςΟϯάͷݪଇ ● ωοτϫʔΫ͸৴པͰ͖ͳ͍ ● ʢ࣌ʹ͸͔ͳΓͷʣ஗Ԇ͕ৗʹൃੜ͢Δ ● ଳҬ෯ʹ͸ݶΓ͕͋Δ ● ωοτϫʔΫ͸ηΩϡΞͰ͸ͳ͍ ● ؅ཧऀ͸ෳ਺Ͱ͋Δ ● సૹίετ͸θϩͰ͸ͳ͍ ● ωοτϫʔΫ͸Ұ༷Ͱ͸ͳ͍ - ࣮ફυϝΠϯۦಈઃܭ ΑΓ

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!24 ίϯςΩετڥքΛͲ͜ʹஔ͔͘ɿRepository microservices Repository UseCase Domain ViewModel View Server side Client side

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!25 RepositoryΛม׵૚ͱͯ͠ݟͳ͢ ● ϝϦοτ ● ੔߹ੑʹ͍ͭͯͷ৺഑ࣄΛυϝΠϯ͔ΒഉআͰ͖Δ ● σϝϦοτ ● ͜Ε͸΋͸΍ϏδωεϩδοΫͳͷͰ͸ʜʁ ● ϓϥοτϑΥʔϜ J04"OESPJE౳ ͷॏෳ࣮૷

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!26 ίϯςΩετڥքΛͲ͜ʹஔ͔͘ɿUseCase microservices Repository Domain ViewModel View Server side Client side UseCase

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!27 UseCaseΛม׵૚ͱͯ͠ݟͳ͢ ● ϝϦοτ ● ʮαʔόͷίϯςΩετΛΫϥΠΞϯτͰͲͷΑ͏ʹѻ͏͔ʯ  ʹϏδωεϩδοΫͰ͋Δɺͱ͍͏ೝࣝ ● ΫϥΠΞϯτ։ൃͰ͸ɺࣗવʹ͜͜ʹམͪண͘͜ͱ͕ଟͦ͏ ● σϝϦοτ ● ϓϥοτϑΥʔϜ J04"OESPJE౳ ͷॏෳ࣮૷

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!28 ίϯςΩετڥքΛͲ͜ʹஔ͔͘ɿViewModel microservices Repository View Server side Client side UseCase ViewModel Domain

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!29 ίϯςΩετڥքΛͲ͜ʹஔ͔͘ɿViewModel microservices Server side Client side ViewModel View

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!30 ViewModelͷ੹຿ ● ૢ࡞ͷ఻ୡ ● ϓϨθϯςʔγϣϯঢ়ଶͷอ࣋ ● 7JFX༻ͷσʔλ΁ͷม׵ ● ը໘ؒͷ੔߹ੑ୲อ ● αʔϏεؒͷ੔߹ੑ୲อ

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!31 ViewModelΛม׵૚ͱͯ͠ݟͳ͢ ● ΞϯνύλʔϯͰ͸ʁ

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!32 ίϯςΩετڥքΛͲ͜ʹஔ͔͘ɿView microservices Server side Client side View Micro Frontends

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!33 ViewΛม׵૚ͱͯ͠ݟͳ͢ ● ϝϦοτ ● 7JFXϚΠΫϩαʔϏεͷ୯Ґͱݟͳ͢ ● σϝϦοτ ● ΞϓϦͷ৔߹ʹ͸ɺ  7JFX͸ϚΠΫϩαʔϏεʢಠཱͯ͠ϏϧυՄೳͳ୯ҐʣͰ͸ͳ͍ ● ΍͸Γը໘ίϯϙʔωϯτؒͷ੔߹ੑΛؾʹ͠ͳ͚Ε͹ͳΒͳ͍ ● ͦΕ͸7JFXͷ੹຿ͩΖ͏͔ʁ

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!34 ΫϥΠΞϯτ͕୲อ͢΂͖੔߹ੑ ● .PEFMͱ7JFXͷؒͷ੔߹ੑ ● 6*ૢ࡞Λ.PEFMʹ఻ୡ ● .PEFMͷঢ়ଶมߋΛ7JFXʹ൓ө ● ڞ௨͢Δ.PEFMʹؔ৺ͷ͋Δ͢΂ͯͷ7JFXʹมߋ͕ಉظ͞ΕΔ ● .PEFMͱ.PEFMͷ੔߹ੑ ● αʔϏε"͔ΒͷϨεϙϯεͱ  αʔϏε#͔ΒͷϨεϙϯεΛͻͱͭͷ.PEFMʹ݁߹͢Δ ● αʔϏε"Λߋ৽ͨ͠ΒɺαʔϏε#ʹ΋มԽ͕ੜ͍ͯ͡Δ͔΋͠Εͳ͍

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!35 Q.ʮModelͱModelͷ੔߹ੑʯ͸ΫϥΠΞϯτ͕୲อ͢΂͖΋ͷʁ ʮαʔϏε"͕มΘͬͨΒαʔϏε#ʹ΋มߋ͕͋Δʯ͸αʔόͰ୲อ͢΂͖Ͱ͸ʁ " ʢΫϥΠΞϯτ͕"1*Λೳಈతʹୟ͍ͯߋ৽Λऔಘ͢Δੈք؍Ͱ͸ʣͦΕ͸ݪཧతʹແཧ ● ʮαʔϏε"ͷߋ৽͕ɺαʔϏε#ʹ൓ө͞ΕΔʯͱͯ͠ʜ ● ΫϥΠΞϯτ͸ɺαʔϏε"ͷߋ৽"1*Λୟ͍ͨ͋ͱɺ  ໌ࣔతʹαʔϏε#ͷऔಘ"1*Λୟ͘ඞཁ͕͋Δ ● αʔϏε͕ؒ݁Ռ੔߹ੑΛલఏʹ͍ͯ͠Δ৔߹ɺ  ͞ΒʹʮͲͷ͘Β͍Ͱ൓ө͞Ε͏Δ͔ʯʮϦτϥΠΛͲ͏͢Δ͔ʯ΋ߟྀ ● ΫϥΠΞϯτ͕࣋ͭαʔϏε#ͷঢ়ଶ͸εφοϓγϣοτͰ͔͠ͳ͍ ● ΫϥΠΞϯτ͸ϚΠΫϩαʔϏεؒͷؔ܎ੑʹ͍ͭͯͷ஌ࣝΛ࣋ͨ͟ΔΛಘͳ͍

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!36 ໰୊ͷয఺ ● αʔόϨεϙϯεͷ੔ܗ6*ૢ࡞ͷαʔό΁ͷ఻ୡʁ ● αʔϏεؒͷϋϒͱͯ͠ɺදࣔ಺༰ͷ੔߹ੑΛҡ࣋͢Δʁ ● ෼ࢄίϯϐϡʔςΟϯάΛආ͚ΔͨΊͷϩʔΧϧͳΠϯλϑΣʔεʁ ● ෳ਺ͷը໘ؒͰͷ੔߹ੑͷҡ࣋ʁ ● ΫϥΠΞϯτͱαʔόͷίϯςΩετ͕Ͳ͜·Ͱ౷߹Մೳ͔͸ɺ  ʮϏδωεϩδοΫʯͷް͞ͰมΘΓ͏Δ ΫϥΠΞϯτʹ͓͚ΔʮϏδωεϩδοΫʯͱ͸Կ͔