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チームをCQRS
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Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
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boiyama
March 30, 2018
Programming
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チームをCQRS
We Are JavaScripters! @17th
https://wajs.connpass.com/event/81022/
の発表資料です。
boiyama
March 30, 2018
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Transcript
ν ʔϜ Λ C Q R S 2 0 1
8 . 3 . 3 0 We A re J a v a S c r i p t e r s # 1 7
P ro f i l e • ϑϩϯτΤϯυΤϯδχΞ at PERSOL
• GitHub: boiyaa Twitter: boiyaaaaaa
C Q R S ίϚϯυΫΤϦ શͯͷॲཧίϚϯυʢߋ৽ʣ͔ΫΤϦʢࢀরʣͰɺͦΕͧΕඞཁͳͷ͕ҧ͏͔Β͚ͯߏ͢Δͱ ͍͏ύλʔϯ ߋ৽ॲཧɿ υϝΠϯϩδοΫ༗ σʔλ߹ੑ
ࢀরॲཧɿ υϝΠϯϩδοΫແ ύϑΥʔϚϯεͱ͔ݕࡧͷ͢͠͞ͱ͔
• αʔόʔαΠυͰΑ͘ΘΕΔύλʔϯ • Akka͕༗໊ ߋ৽ ࢀর EventʢߴՄ༻ͳDBʣ Stateʢ߹ͳDBʣ Command
• αʔόʔαΠυ͚ͩͰͷߟ͑ํͰͳ͍ • ReduxͳΜ͔CQRSνοΫͳϑϨʔϜϫʔΫ Event Props Action State ʢAPIͱ͔ ɹLocalStorageͱ͔ʣ
Reducer ߋ৽ ࢀর
ਓͷׂ͜Μͳײ͡Ͱ͚͍ͨͱ͍͏
ϑϩϯτΤϯυͱόοΫΤϯυͷ৬Λ ϑϩϯτΤϯυɿը໘Λ࡞Δ όοΫΤϯυɿσʔλΛ࡞Δ ͱఆٛ͢Δͱɺ
࣮ࡍͷݱͷׂ୲͜͏ͳ͍ͬͯΔ ϑϩϯτΤϯυ୲ऀɿϑϩϯτΤϯυʴΫϥΠΞϯτ αΠυόοΫΤϯυ όοΫΤϯυ୲ऀɿαʔόʔαΠυόοΫΤϯυ
ͱ͍͏ͷ ϑϩϯτΤϯυɹˠɹϑϩϯτΤϯυΤϯδχΞ όοΫΤϯυɹˠɹαʔόʔαΠυΤϯδχΞ ͳΜͰ͜͏ͳͬͯΔʁ
FirebaseͳͲΛ࠾༻ͯ͠ΫϥΠΞϯταΠυʹ΄ͱΜͲ ͷϩδοΫΛ͖࣋ͬͯͨΓ͢Δ ͰͦΕΛαʔόʔαΠυϨϯμϦϯάͨ͠Γ͢Δ ΫϥΠΞϯτͱαʔόʔͰࣄΛ͚Δͷ࣌ʹ ϑΟοτͯ͠ͳ͍ͷͰ
ࠓҰ ϑϩϯτΤϯυɿը໘Λ࡞Δ όοΫΤϯυɿσʔλΛ࡞Δ ʹཱͪฦׂͬͯΛఆ͍ٛͨ͠͠
ը໘Λߏ͢ΔͷࢀরॲཧͱͷΈ߹ΘͤͰɺ ߋ৽ॲཧΠϕϯτϋϯυϥͰߦΘΕΔͱ͍͏͜ͱΛ౿ ·͑Δͱɺ • ը໘ͱɺը໘Λߏ͢ΔͨΊͷࢀরॲཧΛ࡞Δ • ը໘ͷΠϕϯτϋϯυϥͱߋ৽ॲཧΛ࡞Δ ͱ͍͏ײ͡Ͱࣄߋ৽ܥͱࢀরܥͰͰ͖ͦ͏
Event State Event State ը໘ ΫϥΠΞϯτ αʔόʔ όοΫΤϯυ ΤϯδχΞ ϑϩϯτΤϯυ
ΤϯδχΞ ຊདྷͷը໘Λ࡞ΔɾσʔλΛ࡞Δ৬ʹूத
JavaScriptΫϥΠΞϯτɾαʔόʔͲͪΒ࡞ΕΔݴ ޠͳ͚ͩ͋ͬͯɺ JavaScripter྆ଆ͚ͳ͍͜ͱʹ߅͕ແ͍ਓ͕ଟ͍ ͱࢥ͏ ͨͩɺԣஅ͢ΔͷͰɺ֤ͷपลࣝΛநԽ͠ ͨπʔϧαʔϏεΛ׆༻͍ͨ͠
αʔόʔαΠυാͷਓ͚ େͳϑϩϯτΤϯυΤίγεϜͷΩϟονΞοϓͷखؒΛ͔͚ͣʹࡁΉͷ • Nuxt.js: VueϕʔεͰɺΕΔࣄͷଟ͞ͱԱ͑Δࣄͷগͳ͞ͷόϥϯε͕͍͍ • Next.js: Reactϕʔεʹ͔ͯ͠ͳΓԱ͑Δࣄগͳ͘Ͱ͖͍ͯΔ
• Redux: αʔόʔαΠυͰCQRS͍ͬͯΔਓʹೃછΈ͍͢ͱࢥ͏͠ɺӬଓԽ͍ͨ͠σʔλΛ ѻ͏ϑϨʔϜϫʔΫͱͯ͠ • AMP: ΕΔࣄগͳ͍͚ͲԱ͑Δࣄ͕Ұ൪গͳ͍ɻSPAͰͳ͍ͷͰαʔόʔαΠυతʹςϯϓ ϨʔτΤϯδϯʹॻ͚͍͍ͷͰϋʔυϧ͍
ϑϩϯτΤϯυാͷਓ͚ αʔόʔαΠυͷՄ༻ੑύϑΥʔϚϯεΛࣗྗͰ୲อ͢Δͷ͍͠ͷͰɺӡ༻ϋʔυϧͷ͍ͷ • Cloud Firestore: σʔλΛΫϥΠΞϯταʔόʔؒͰಉظ͢Δεέʔϥϒϧͳ NoSQLσʔλϕʔεɻ ͦͦ͜͜ͷΫΤϦػೳʢ!=ͱ͔orͱ͔ͳ͍ʣɻ·ͩϕʔλ •
Cloud Functions for Firebase: Firestore ͷߋ৽ΛτϦΨʔʹ Node.js ͷؔΛ࣮ߦͰ͖ΔͷͰɺෳࡶͳϩδοΫΛॻ͘ॴʹ͑Δɻ • Firebase Hosting: ͱͯ؆୯ʹ੩తϑΝΠϧΛFastlyͷڧྗͳCDNͰ৴Ͱ͖ΔɻυϝΠϯূ໌ॻஶ͘͠؆୯ɻ Cloud FunctionsͷϓϩΩγͰ͖ͯɺαʔόʔαΠυϨϯμϦϯάͨ͠ը໘৴Ͱ͖Δɻ • AWS AppSync: GraphQLͰDynamoDBʢεέʔϥϒϧͳ NoSQLσʔλϕʔεʣElasticsearch ServiceʢϑϧϚωʔδυͳݕ ࡧΤϯδϯʣ͔ΒσʔλऔಘͰ͖ΔαʔϏεͳͷͰɺΫΤϦͱ૬ੑ͕ྑͦ͞͏ɻ Lambda Ͱ Node.js ͷؔΛ࣮ߦͰ͖ΔͷͰɺෳࡶͳϩδοΫॻ͚Δɻ·ͩύϒϦοΫϓϨϏϡʔ
ͱ͍͏ໝ