Kotlin製のGraphQLサーバーをNode.jsでモジュラモノリス化している話

by Kazuhito Hokamura

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Kotlin੡ͷGraphQLαʔόʔΛNode.jsͰϞδϡϥϞϊϦεԽ͍ͯ͠Δ࿩ JSConf JP 2023 @hokaccha

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2 About Me Kazuhito Hokamura software engineer @hokaccha @hokaccha

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@Ubie,Inc. 3 1. ϢϏʔͷϓϩμΫτʹ͍ͭͯ 2. ϢϏʔͷγεςϜͷݱঢ়ͱ՝୊ 3. ՝୊ʹରͯ͠औΓ૊ΜͰ͍Δ͜ͱ Table of Contents

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@Ubie,Inc. 4 ࣗ෼ͷ঱ঢ়Λ౴͑Δ͚ͩͰɺ ࢀߟප໊΍ۙ͘ͷҩྍػؔ౳ ʮड਍ͷख͕͔Γʯ͕ௐ΂ΒΕΔ ҩྍݱ৔Ͱ࣮ࡍʹ࢖ΘΕ஁͑ΒΕͨAIΛɺੜ׆ऀ͕ద੾ͳ ҩྍʹ͔͔Δ໨҆ͱͯ͠։์͍ͯ͠·͢ (2020೥य़ʙ) ແྉͰ ୭Ͱ΋ ͍ͭͰ΋ ΄΅શͯͷ঱ঢ়Ͱˎ ˎ99% (1.3ສ௒)ͷ঱ঢ়ʹରԠ

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@Ubie,Inc. 5 ໰਍ۀ຿ޮ཰Խ΍ೝ஌޲্ͳͲɺ ױऀ͞ΜͱͷίϛϡχέʔγϣϯઃܭΛ௨͡ɺ ਍࡯ͷ࣭޲্Λࢧԉ͢Δҩྍػؔ޲͚αʔϏε පӃɾΫϦχοΫͦΕͧΕͷχʔζʹ߹ΘͤͨҎԼͷΑ͏ͳ ػೳΛఏڙɾ։ൃ͍ͯ͠·͢ ϢϏʔAI໰਍ ϢϏʔϦϯΫ ϗʔϜϖʔδAI૬ஊ૭ޱ etc…

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@Ubie,Inc. 6 2. ϢϏʔͷγεςϜͷݱঢ়ͱ՝୊ 3. ՝୊ʹରͯ͠औΓ૊ΜͰ͍Δ͜ͱ Table of Contents 1. ϢϏʔͷϓϩμΫτʹ͍ͭͯ

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7 γεςϜΞʔΩςΫνϟ

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8 ● ෳ਺ͷݴޠɾϑϨʔϜϫʔΫ͕ཚཱ͍ͯ͠Δ ○ Kotlin/Spring Boot, Rails, Node.js/NestJS, Go, Python ○ API ΋ GraphQL, gRPC, REST ͕ࠞࡏ ● ίʔυϕʔε͕େ͖͘ͳ͖ͬͯͯػೳͷڥք͕ᐆດʹͳΓɺΦʔφʔγοϓ͕ෆ໌ྎʹͳ͍ͬͯΔ ○ ಛʹϓϩμΫτଆͷαʔϏε͕ංେԽ͍ͯ͠Δ ● ݹ͔͘Β͋ΔϨΨγʔͳγεςϜ΍σʔλ͕ΞʔΩςΫνϟతͳ࿪Λ࢈ΜͰ͍Δ ○ ೝ஌ෛՙͷ্ঢɺอकίετͷ૿ՃͳͲʹΑΓੜ࢈ੑ͕௿Լ͍ͯ͠Δ γεςϜ্ͷ՝୊

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9 ҰݴͰ͍͏ͱ ٕज़తෛ࠴͕ ੵΈ্͕͖ͬͯͨʂʂ

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@Ubie,Inc. 10 3. ՝୊ʹରͯ͠औΓ૊ΜͰ͍Δ͜ͱ 2. ϢϏʔͷγεςϜͷݱঢ়ͱ՝୊ Table of Contents 1. ϢϏʔͷϓϩμΫτʹ͍ͭͯ

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11 औΓ૊ΜͰ͍Δ͜ͱ ● ϦΞʔΩςΫςΟϯάʹΑΔٕज़తෛ࠴ͷղফ ○ ٕज़ελοΫͷ౷Ұ ○ ϞδϡϥϞϊϦεԽ ● ٕज़తෛ࠴Λίϯτϩʔϧ͢ΔͨΊͷऔΓ૊Έ ○ ٕज़ઓུɾํ਑ͷݴޠԽɾυΩϡϝϯςʔγϣϯ ○ Design DocʹΑΔઃܭϨϏϡʔͷϓϩηε੔උ ● ੜ࢈ੑࢦඪͷՄࢹԽͱ໨ඪͷઃఆ ○ Four KeysʹΑΔՄࢹԽ ○ ੜ࢈ੑվળͷͨΊͷઓུࡦఆ ← ࠓ೔͸͜͜ͷ࿩͠

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12 ٕज़ελοΫͷ౷Ұ

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13 γεςϜΞʔΩςΫνϟ To-Be

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14 ٕज़ελοΫͷ౷Ұ ● όοΫΤϯυ͸ݴޠΛNode.js/Goʹ౷Ұ ○ ϓϩμΫτଆͷαʔϏε͸Node.jsɺϓϥοτϑΥʔϜଆ͸Goʹ͢Δ ○ Node.jsͷਪ঑ߏ੒͸ NestJS, Prisma ͋ͨΓ͕༗ྗ ● ϑϩϯτΤϯυ͸Next.jsʹ౷Ұ ○ ݱঢ়ͱ͋·Γဃ཭͸ͳ͍ͷͰٕज़ελοΫ͸େ෯ͳมߋ༧ఆ͸ͳ͠ ● API͸GraphQLʹ౷Ұ ○ gRPCͷซ༻Λߟ͍͕͑ͯͨGraphQLʹ౷Ұ͢Δํ޲Ͱݕ౼த

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15 ϞδϡϥϞϊϦε ʢAI͕ߟ͑ΔϞδϡϥϞϊϦεͷਤʣ

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16 ϞδϡϥϞϊϦε #ͱ͸ ϞϊϦεͳΞϓϦέʔγϣϯͷ಺෦Λػೳ୯ҐͰϞδϡʔϧʹ෼ׂͨ͠ΞʔΩςΫνϟ

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17 Φʔφʔγοϓ͕େࣄ ʢAI͕ߟ͑ΔΦʔφʔγοϓʣ

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18 Why ϞδϡϥϞϊϦε

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19 v.s. ϚΠΫϩαʔϏε

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20 v.s. ϚΠΫϩαʔϏε ● ωοτϫʔΫ௨৴͕ൃੜ͠ͳ͍ͨΊɺ৴པੑ΍ύϑΥʔϚϯεͳͲͷ఺Ͱ༗ར ● ಉҰίʔυϕʔεͳͷͰ։ൃ؀ڥͷߏங΍ΠϯςάϨʔγϣϯςετ͕༰қ ● ΤϥʔτϥοΩϯά΍؂ࢹɺτϥϒϧγϡʔςΟϯά͕γϯϓϧʹͳΔ ● ϞδϡʔϧͷڥքͷมߋʹରԠ͠΍͍͢ ϞδϡϥϞϊϦεͷϝϦοτ

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21 v.s. ϚΠΫϩαʔϏε ● ػೳ୯ҐͰσϓϩΠ΍εέʔϦϯά͕Ͱ͖ͳ͍ ● ϓϩμΫτͷεέʔϧʹ൐ͬͯσϓϩΠύΠϓϥΠϯ΍CI͕ංେԽɺෳࡶԽ͢Δ ● ϞδϡʔϧͷڥքΛҡ࣋͢ΔͨΊͷίετ͕͔͔Δ ϞδϡϥϞϊϦεͷσϝϦοτ

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22 ϢϏʔʹ͓͚ΔϞδϡϥϞϊϦε

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23 ٕज़બఆ ● NestJS Ͱ GraphQL αʔόʔΛߏங͢Δ ● ORM ͸ Prisma ● ϑϨʔϜϫʔΫ΍ϥΠϒϥϦ͸͍ͨͬͯී௨ͷߏ੒

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24 ύοέʔδ؅ཧ ● package.json ͕ϧʔτʹ͋Δ͚ͩͷී௨ͷ Node.js ϓϩδΣΫτ ● npm workspace ͱ Turborepo Λ࢖ͬͨ multi packages ߏ੒΋ݕ౼ ○ શͯͷϞδϡʔϧͰಉ͡ϥΠϒϥϦ΍ઃఆΛ࢖͏ͷͰ  ϝϦοτ͕গͳ͍ ○ ෳࡶੑͷ૿ՃͳͲͷσϝϦοτ্͕ճΔͱ൑அͯ͠΍Ίͨ

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25 Database, ORM ● DB͸ϞδϡʔϧؒͰڞ༗͢Δ ○ Ϟδϡʔϧ͝ͱʹDBͷεΩʔϚΛ෼͚Δʢ༧ఆʣ ● ςʔϒϧɾܕͷఆٛ͸Ϟδϡʔϧ͝ͱʹఆٛ͢Δ ● prisma-import Λ࢖ͬͯ݁߹͢Δ ○ github.com/ajmnz/prisma-import ● ϞδϡʔϧΛލ͍ͩjoin͸ڐՄ͠ͳ͍ ● ϞδϡʔϧΛލ͍ͩτϥϯβΫγϣϯ͸ݕ౼த

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26 GraphQL ● GraphQLͷεΩʔϚ΋ؚΊ֤ͯϞδϡʔϧ͕؅ཧ͢Δ ● ΤϯτϦϙΠϯτͰεΩʔϚͱresolverΛ݁߹͢Δ

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27 Ϟδϡʔϧؒ௨৴ ● exportͨؔ͠਺Λݺͼग़͚ͩ͢ ○ TypeScriptͷܕ͕͋ΔͷͰഁյతͳมߋʹΑͬͯյΕΔͱ͍͏͜ͱ͸ൃੜ͠ʹ͍͘͸ͣ ● ֎෦ͷϞδϡʔϧʹެ։͍ͯ͠Δػೳ͔Ͳ͏͔Λ໌ࣔͰ͖ΔΑ͏ʹ͢Δ ○ modules/module-name ௚Լͷ index.ts Ͱ export ͨ͠΋ͷҎ֎͸֎෦͔Β͸ར༻͠ͳ͍ ○ eslint ͷ import/no-internal-modules Λ࢖੍ͬͯݶ͢Δ

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28 ςετ ● NestJSͷDIΛ࢖ͬͯࣗ਎ͷϞδϡʔϧҎ֎Λmock͢Δ ● ଞͷϞδϡʔϧͷมߋʹΑͬͯςετ͕յΕͳ͍

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29 ·ͱΊ ● ϢϏʔ͸ϓϩμΫτ΍૊৫͕εέʔϧ͖ٕͯͯ͠ज़తෛ࠴Λฦ͍ͯ͠ΔϑΣʔζ ● औΓ૊Έͱٕͯ͠ज़ελοΫͷ౷Ұ΍ϞδϡϥϞϊϦεԽΛਐΊ͍ͯΔ ● ָ͍࣌͠ظͳͷͰڵຯΛ࣋ͬͯ͘Εͨํ͸੠͔͚͍ͯͩ͘͞ʂ

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30 Ұॹʹ΍ͬͯ͘ΕΔํ ੵۃืूதʂ

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31 UbieͰ͸ੵۃతʹ࠾༻Λߦ͍ͬͯ·͢ɻ͋ͳͨͷԠืΛ͓଴ ͍ͪͯ͠·͢ɻ ΧδϡΞϧ໘ஊԠืϑΥʔϜ We Are Hiring!