Spring with React for Enterprise Application

by daigo3

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Spring with React FOR ENTERPRISE APPLICATION Tagbangers, Inc. Spring Fest 2019

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ࢁ㟒 େ λάόϯΨʔζೖࣾ5೥໨ɻ WebΞϓϦέʔγϣϯͷ։ൃɺϚωδϝϯτΛ୲౰ɻ JavaɺSpring͸΋ͪΖΜɺٕज़ͷ͜ͱͳΒͳΜͰ΋޷͖ɻ ͨͩͷΘ͞΋Μɻ ઃᒜ େޛ λάόϯΨʔζೖࣾ1೥໨ɻ WebΞϓϦέʔγϣϯͷϑϩϯτΤϯυ։ൃΛ୲౰ɻ

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اۀ͕༧ࢉΛׂ͍ͯങ͏γεςϜ ͦͷγεςϜΛ࢖ͬͯϏδωεΛ·Θ͢ ੒௕͢Δۀ຿ͷத৺ͱͳΔΞϓϦέʔγϣϯ Enterprise

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Enterprise ݱঢ়ͷϏδωεͰՁ஋Λఏڙ͠ͳ͕Β কདྷ΋Ձ஋Λग़͠ଓ͚Διϑτ΢ΣΞ Ͱͳ͚Ε͹ͳΒͳ͍

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มԽͰ͖Δ UI มԽʹڧ͍γεςϜ Enterprise

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ۀ຿γεςϜʹͦ͜ɺ มԽΛٻΊΔ͜ͱ͕Ͱ͖Δ ϞμϯͳUIɾγεςϜ͕ඞཁͩͱߟ͍͑ͯ·͢

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Spring + React @tagbangers way Dev Conversation Frontend Backend Day 0 Day 1 Day 2 CI CD Ops Ops Feedback Enhancement > Share knowledge Contract

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Day 0 Conversation Conversation UI Dev Service Dev Contract Ops Day 0 Day 1 Day 2

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https://www.eventstorming.com/

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σʔλ͚ͩͰ࣮ࡍͷۀ຿͕ճ͍ͬͯΔΘ͚Ͱ͸ͳ͍ ۀ຿ϓϩηε = σʔλͱɺͦΕΛԿΒ͔ͷํ๏ͰԿΒ͔ͷܗʹ͢Δ͜ͱ ϞσϧԽ͢Δ΂͖ۀ຿ϓϩηεͷ։࢝఺Λ୳Δɹ-> Domain Event ։ൃνʔϜɾϓϩμΫτνʔϜ͕ҰॹʹϓϩμΫτʹֶ͍ͭͯͿ

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1. Կ͕ى͔ͬͨ͜?ʢ Domain Event ʣΛ୳Δ 2. ͳͥىͬͨ͜ͷ͔?Λ୳Δ 3. Domain Event Λى͜͢ʹ͸ͳʹ͔৚݅͸͋Δ͔? 4. Domain Event ͕ӨڹΛ༩͑Δ΋ͷ͸Կ͔ 5. Bounded ContextΛ୳͢

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λάόϯΨʔζͰຖि༵ۚʹߦΘΕΔϥϯνϛʔςΟϯά ࣮ફ

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1. ேձͰΈΜͳͰ͡ΌΜ͚Μɻ 2. ̎൪໨ʹউͪൈ͍ͨਓ͕ళΛܾΊΔ͜ͱ͕Ͱ͖Δɻ 3. উऀ͸޷͖ͳళΛબΜͰslack #meshibanͰप஌ 4. ݸʑʹ৯΂͍ͨ΋ͷΛใࠂͯ͠΋Β͏ 5. উऀ͸ใࠂΛ·ͱΊͯ஫จ͢Δ 6. ಧ͍ͨΒձࣾʹ͓ۚΛ෷ͬͯ΋Β͏ ۀ຿ϑϩʔ

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1. Bounded Context = Deployment unit ͕Θ͔Δ 2. ۀ຿ϓϩηε͕୭ or ԿʹΑͬͯ։࢝͢Δͷ͔ɺͲͷΑ͏ͳ ෭࡞༻ͱ݁ՌΛੜΉͷ͔͕Θ͔Δ 3. Domain Event ͷ৚݅Ͱ͋Δ Invariant ͕ෳࡶʹͳΔ΄Ͳ αʔϏεͷ༏ҐੑͱͳΔ෦෼͕ݟ͑ͯ͘Δ 4. νʔϜͰڞ௨ͷϓϩμΫτࢹ఺͕࣋ͯΔ

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Modeling ϞσϦϯά = ந৅Խ͢Δ࡞ۀ ίϯςΩετʹΑͬͯந৅౓͕ҟͳΔ ڞ༗͢Δʮ໊લʯʢϞσϧɾଐੑʣΛܾΊ͍ͯ͘

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UI Development Service Development Shared Mental Model ͜͜Ͱɺ࡞Ζ͏ͱ͍ͯ͠Δ΋ͷΛڞ༗͕Ͱ͖ͨͷͰ ͔͜͜ΒผΕͯ։ൃΛ࢝Ί·͢

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Day 1 UI Dev Conversation UI Dev Service Dev Contract Ops Day 0 Day 1 Day 2

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Ұ؏ੑͷ͋ΔUI มߋʹڧ͍UI Problems UI Dev

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Ұ؏ੑΛอͭ ཁૉͷදݱ͕৔ॴʹΑͬͯҧ͏ Ϛʔδϯ͕งғؾͰܾ·Δ ௥Ճ͚ͩ͞Ε͍ͯ͘ελΠϧ৘ใͨͪ

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https://css-tricks.com/oh-no-stylesheet-grows-grows-grows-append-stylesheet-problem/

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CSS-in-JS is the rescue!

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Automatic critical CSS No class name bugs Easier deletion of CSS Simple dynamic styling Painless maintenance Automatic vendor prefix

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global theme props Simple dynamic styling

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Ұ؏ੑͷ͋ΔUIɹ มߋʹڧ͍UI Problems UI Dev

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Component Development

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Component Χλϩά Component ͷ༷ʑͳঢ়ଶΛ֬ೝͰ͖Δ༷ʹͳΔ Component ୯ಠͰͷ։ൃʹϑΥʔΧε͢Δ σʔλͱৼΔ෣͍Λ༩͑ΒΕͨ௨Γʹ΍Δ͚ͩ 1ͭͷ͜ͱΛ͏·͘΍ΔϠπʹ͢Δ

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Component ͷ෼ׂ a.k.a Atomic Design

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Component ͷ෼ׂ a.k.a Atomic Design Foundations Elements Blocks Layouts Screens

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styled-components ͷ theme ৭΍ִؒɺϑΥϯταΠζͳͲͷҰ؏ੑΛอͭͨΊͷཁૉ Foundations

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UIΛߏ੒͢Δجૅཁૉ ͜ΕҎ্ࡉ෼Խͯ͠΋ҙຯ͕ͳ͍΋ͷ͸ Element component ͱͯ͠࡞Δ Elements

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BUTTON ICON

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Elements, Blocks͔Β੒Δෳ߹తͳཁૉ Blocks

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Jane Doe LOGIN Wellcome! Your name Password

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Layouts ϨΠΞ΢τͷύλʔϯ

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ϖʔδ Screens

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Jane Doe Awesome app John Smith

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Ұ؏ੑͷ͋ΔUIɹ มߋʹڧ͍UIɹ ɹ Problems UI Dev

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EventStorming Ͱൃݟͨ͠ Domain Event , workflowΛ࣮૷͢Δ Views States View Usecase ։࢝ ͡ΌΜ͚Μத ࣗ෼ͷखΛબ୒ ࣗ෼ͷखΛܾΊΔ ࣗ෼ͷखΛAPIʹ ొ࿥ͯ͠΋Β͏ States ͡ΌΜ͚Μऴྃ

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Your name Preparing for reception ROCK PAPER SCISSORS START

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Your name Preparing for reception ROCK PAPER SCISSORS START

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Your name Preparing for reception ROCK PAPER SCISSORS START Views ։࢝ Store

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Your name Preparing for reception ROCK PAPER SCISSORS ͡ΌΜ͚Μத START Views ։࢝ Store

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Your name Accepting ROCK PAPER SCISSORS ͡ΌΜ͚Μத START Views ։࢝ Store

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Your name Accepting ROCK PAPER SCISSORS ͡ΌΜ͚Μத START Views ։࢝ Store

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Your name ROCK PAPER SCISSORS START Views ։࢝ Store API ։࠵ঢ়گΛมߋ Preparing for reception มߋத

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Your name Accepting ROCK PAPER SCISSORS ͡ΌΜ͚Μத START Views Store API Response Success

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Your name Accepting ROCK PAPER SCISSORS START

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Your name Accepting ROCK PAPER SCISSORS View ࣗ෼ͷखΛબ୒ START move: SCISSOR Store

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Your name Accepting ROCK PAPER SCISSORS View ࣗ෼ͷखΛબ୒ START move: SCISSOR Store

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Your name Accepting ROCK PAPER SCISSORS View ࣗ෼ͷखΛબ୒ START move: SCISSOR Store

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Your name Accepting ROCK PAPER SCISSORS View ࣗ෼ͷखΛબ୒ START Store API ࣗ෼ͷखΛొ࿥ move: SCISSOR

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Your name Accepting ROCK PAPER SCISSORS View ࣗ෼ͷखΛબ୒ START ొ࿥։࢝ Store API ࣗ෼ͷखΛొ࿥ ొ࿥த move: SCISSOR

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Your name Accepting ROCK PAPER SCISSORS View ࣗ෼ͷखΛબ୒ START Store API ࣗ෼ͷखΛొ࿥ API Response move: SCISSOR

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Your name Wait for Result ROCK PAPER SCISSORS View START Store API API Response ొ࿥੒ޭ ొ࿥ऴྃ

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trigger workﬂow event Action Repository interaction Component [presentational] Component [Container] Store Reducer Middleware Action Use case Execute Result State props Entity Result uses uses API

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Day 1 Service Dev Conversation UI Dev Service Dev Contract Ops Day 0 Day 1 Day 2

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αʔϏε / Ϟδϡʔϧͷ෼ׂ Spring ͷ Ecosystem ͳʹΛ͔ͭ͏ʁ มԽ͢ΔͨΊͷ४උ Problems ServiceDev

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αʔϏε / Ϟδϡʔϧͷ෼ׂ୯ҐΛߟ͑Δ Conversation UI Dev Service Dev Contract Ops Day 0 Day 1 Day 2

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workflow Service Development

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workflow Service Development

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workflow Service Development REST REST Messaging

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Spring ͷͳʹΛ͔ͭ͏ͷ͔ʁ

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workflow Service Development Invariant ʢԫ৭ʣ͕ͳ͍ ࢀর͸͞ΕΔ webhook ʹΑΔ POST → Spring Data RESTʂ

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workflow Service Development Invariant ʢԫ৭ʣ͕ଟ͍  → ෳࡶͳཁ݅  → ࡞ΓࠐΈ͕ඞཁ Messaging → Spring MVC  → Spring Cloud Stream Messaging Invariant!

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มԽ͢ΔͨΊͷ४උ

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workflow Service Development Unit Test ͔Β࢝ΊΔ → TDD

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workflow Service Development

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workflow Service Development

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αʔϏε / Ϟδϡʔϧͷ෼ׂ   → Bounded Context Ͱ෼͚Δ Spring ͷ Ecosystem ͳʹΛ͔ͭ͏ʁ  → ෇ᝦ΍໼ҹ͔Βಛ௃ΛΈ͚ͭΔ มԽ͢ΔͨΊͷ४උ  → TDD ͷཁૉ͕͢Ͱʹ͋Δ ServiceDev

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Day 1 Contract - Consumer Driven Contract Share Knowledge UI Dev Service Dev Contract Ops

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workflow Integration Test ͷ՝୊ ࿈ܞ͢ΔαʔϏε͕ͨ͘͞Μ͋Δͱɾɾɾ ͢΂ͯͷ؀ڥΛ४උ͢Δͷ͸େม ४උͰ͖ͯ΋ςετ͕஗͍ ଎͘ɺ؆୯ʹ͢ΔͨΊʹϞοΫʹ͍ͨ͠ɾɾɾ ϞοΫ͸৴༻Ͱ͖ͳ͍

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Consumer Broker Service Contract Unit Test Contract = Pact ﬁle

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Consumer Broker Service Contract Unit Test Contract

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Consumer Broker Service Contract Unit Test Contract Unit Test

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Consumer Broker Service Contract Unit Test Contract Unit Test Green

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Consumer Broker Service Contract Unit Test Unit Test Green ✅ Veriﬁed ! Contract

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Consumer Broker Service Contract Unit Test Contract Unit Test Green ✅ Veriﬁed ! API Stub Contract

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DEMO

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Consumer Broker Service Contract Unit Test Contract Unit Test Green ✅ Veriﬁed ! API Stub Contract

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มԽʹڧ͍γεςϜ΁ͷΞϓϩʔν • νʔϜͰShared mental modelΛҭͯΔ • ڥքΛཧղͯ͠Ϟδϡʔϧ΍αʔϏεΛ෼͚ͯΔ͜ͱͰ طଘαʔϏεʹӨڹ༩͑ͣʹ։ൃ • Contract ͕͋Δ͜ͱͰɺطଘΞϓϦέʔγϣϯΛյͣ͞ ʹ։ൃ

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠