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FOLIO のマイクロサービス in Action / FOLIO's Microservic...
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Takuya "Mura-Mi" Murakami
October 26, 2019
Programming
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FOLIO のマイクロサービス in Action / FOLIO's Microservices in Action
Takuya "Mura-Mi" Murakami
October 26, 2019
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Transcript
FOLIO ͷϚΠΫϩαʔϏε in Action 2019/10/26 ΉΒΈΜ (ଜ্) Scalaؔαϛοτ2019 Copyright ©
2019 FOLIO, Ltd. All Rights Reserved. 1
ଜ্ (@Mura-Mi or @mura_mi) ΞϓϦέʔγϣϯΤϯδχΞ in FOLIO ͜Ε·ͰͷΩϟϦΞ: * Simplex,
Inc. (2012~2016) * CyberAgent AdTech Studio (2016~2018) * FOLIO (2018~ ) $ whoami 2
ࠓ͢͜ͱ 3 '0-*0ͷ͔ΜͨΜͳհ ϛΫϩ ୯ମαʔϏε ͷ ٕज़ελοΫ ϨΠϠΞʔΩςΫνϟ 'JOBHMF6TBHF ϚΫϩ
αʔϏεશମ ͷ Ͳ͏αʔϏεΛ͚Δ͔ ҆ఆӡ༻ͷίπ ࠓޙͷ՝
FOLIO ͱʁ 4
ScalaؔSummit 2018 ʮScalaͰͭ͘Δূ݊ձࣾͱελʔτΞοϓʯΑΓ https://speakerdeck.com/mura_mi/securities-and-startup-with-scala?slide=19 8 ڈͷ ScalaؔSummit Ͱ…
։ൃ։࢝ FOLIO ͷ͔ΜͨΜͳྺ࢙ 9 ۀ
ςʔϚࢿ ЌαʔϏε։࢝ ςʔϚࢿ -*/&ͱ࿈ܞ։࢝ ͓·͔ͤࢿ αʔϏε։࢝ ϫϯίΠϯࢿ αʔϏε։࢝ "84Ҡߦ։࢝ ਖ਼ࣜαʔϏε։࢝
ϛΫϩͳ 10 Photo by Darius Cotoi on Unsplash
Scala 11 ۀ͔࣌Β4DBMB ϚΠΫϩαʔϏεͰ։ൃ Λελʔτ υϝΠϯࣝͷදݱྗ +7.֎෦ػؔγεςϜͱͷۚ༥ಛ༗ͷϓϩτ ίϧ4%,ʹରԠ͍͢͠
Finagle, Finatra, TwitterServer 12 'JOBHMF5XJUUFSࣾͷ31$ϑϨʔϜϫʔΫ 5XJUUFS4FSWFS5XJUUFSͰͷ'JOBHMFαʔόʔΛηοτΞοϓ͢ Δͱ͖ͷςϯϓϨʔτΛ044Խͨ͠ͷ 'JOBUSB'JOBHMFͱ5XJUUFS4FSWFSΛར༻ͨ͠ΞϓϦέʔγϣϯϑ ϨʔϜϫʔΫɽϧʔςΟϯά%4-%*Λఏڙ ຖ݄ϦϦʔε͕͋Δ
WFS͕ZZZZNNܗࣜ$BM7FSͱ͍͏
Thrift 13 'BDFCPPL͕։ൃͨ͠31$ϑϨʔϜϫʔΫΠϯλʔϑΣΠ εఆٛݴޠ͓ΑͼόΠφϦ௨৴ϓϩτίϧ 'JOBUSB͕ओʹαϙʔτ͍ͯ͠Δͷ͕)551 3&45"1* ͓ Αͼ5ISJGU *%-ͷ͋Δ31$ϓϩτίϧͷඞཁੑܕ҆શɼ໌֬ͳ"1* ͷεΩʔϚཧ
'0-*0্ཱͪ͛ظʹH31$͕·ͩਖ਼ࣜϦϦʔεͷஈ֊Ͱ ͳ͔ͬͨ
ϨΠϠυΞʔΩςΫνϟ 14 Photo by Burhan Rexhepi on Unsplash
* ؔ৺ͷΛ࣮ݱ͢Δ্ͰɼϏδωε ϧʔϧͷ࣮ΛΠϯϑϥ (ϑϨʔϜϫʔ ΫϛυϧΣΞ) ʹґଘͤ͞ͳ͍ɽ * ϑϨʔϜϫʔΫϛυϧΣΞͷબࢶ ͕࣮࣭1͔ͭ͠ແ͍৫ͰɼυϝΠϯ ͷ࣮ΛϐϡΞʹอͭ͜ͱͰϏδωε
ϧʔϧͷมߋͳͲʹॊೈʹରԠͰ͖ ΔΑ͏ʹͳΔɽ 15 ΫϦʔϯΞʔΩςΫνϟ
FOLIO ͰͷయܕతͳϨΠϠΞʔΩςΫνϟ 16 EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU
JEMJOUFSOBM JEMFYUFSOBM JEM '0-*0ͷϚΠΫϩαʔϏεʹ͓͚ΔϨΠ Ϡ͚Λنఆ͢ΔࣾϑϨʔϜϫʔΫ ಛʹଘࡏ͠ͳ͍ ֤αʔϏεͷ։ൃ։࢝࣌ظʹΑͬͯΒ ͖ͭ͋Δ͕ɼ࠷ۙͷαʔϏεͷߏ ͓͓Αͦ͜ͷ༷ʹͳ͍ͬͯΔ ͜ͷίϯϙʔωϯτͦΕͧΕΛTCUͷα ϒϓϩδΣΫτͱͯ͠ఆٛ͠ɼґଘͷҧ ίϯύΠϧ͕௨Βͳ͍Α͏ʹ͍ͯ͠ Δ
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
domain ϨΠϠ 17 ͍ΘΏΔʮϏδωεͷؔ৺ࣄʯ ΤϯςΟςΟɺΦϒδΣΫτ ϦϙδτϦఆٛ USBJU ࣮͕Ͳͷ༷ʹͳ͍ͬͯΔ͔ͳΔ͘Ӆ͢ 3%# 3FEJT ώʔϓΩϟογϡ ଞϚΠΫϩ αʔϏε EPNBJO
PBR (Price and Book-Value Ratio, גՁ७ࢿ࢈ഒ) = גՁ / BPS
18 value object: ܭࢉࣜΛܕʹམͱ͠ࠐΉ
PBR (Price and Book-Value Ratio, גՁ७ࢿ࢈ഒ) = גՁ / BPS
18 value object: ܭࢉࣜΛܕʹམͱ͠ࠐΉ ϓϦϛςΟϒϥοϓ͢Δ
PBR (Price and Book-Value Ratio, גՁ७ࢿ࢈ഒ) = גՁ / BPS
18 value object: ܭࢉࣜΛܕʹམͱ͠ࠐΉ ࣜΛϝιουͱͯ͠ද͢
ఆ͚ٛͩॻ͘ 19 ֎෦αʔϏεݺͼग़͠ͷఆٛ
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
domain: Ͳ͜·Ͱִ͢Δʁ 20 Ӆ͍ͯ͠Δٕज़ৄࡉ 31$ΞϓϦέʔγϣϯ'8 'JOBHMF'JOBUSB 4DBMB%#Ϛοϐϯά 2VJMM ϓϨθϯςʔγϣϯ 5ISJGU Ӆ͍ͯ͠ͳ͍ٕज़ৄࡉ ඇಉظॲཧΛද͢ܕΫϥε 5XJUUFS'VUVSF δΣωϦοΫϓϩάϥϛϯά TIBQFMFTT ϚΠΫϩαʔϏεͷϝϦοτͱͯ͠ʮٕज़ҟ࣭ੑʯͱ͋Δ ͕ɼ࣮ࡍʜ EPNBJO
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
application ϨΠϠ 21 ʮϢʔεέʔεʯͱݺΕΔ෦ EPNBJOϨΠϠͷࣝΛΈ߹Θͤͯ"1*όο ν࣮ߦ࣌ͷॲཧ༰Λهड़͢Δ BQQMJDBUJPO
Ϣʔεέʔε Request ͔Β Response ͷؔͰ͋Δ 22 use case trait
Just pure Scala case class 23 DTO implementation
۩ମతͳܕύϥϝʔλʔΛͯΊΔͱʁ 24 use case implementation
࣮ࡍʹ͍ͬͯΔॲཧʁ 25 use case implementation
࣮ࡍʹ͍ͬͯΔॲཧʁ 25 use case implementation EPNBJOϨΠϠͷૢ࡞
࣮ࡍʹ͍ͬͯΔॲཧʁ 25 use case implementation Ϣʔεέʔεݻ༗ͷॲཧ Ϣʔεέʔεݻ༗ͷॲཧ
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
application: සग़ॲཧͱυϝΠϯͷৠཹ 26 BQQMJDBUJPOϨΠϠͰසग़͢Δॲཧ "QQMJDBUJPO4FSWJDFͱݺΜͰڞ௨Խͨ͠Γ "QQMJDBUJPOϨΠϠͱ%PNBJOϨΠϠͷڥᐆ ດ͕ͩɼBQQΛॻ͖ͳ͕ΒEPNBJOʹ͍࣋ͬͯ ͘ &WBOTຊʹग़ͯ͘Δʮৠཹʯॏཁͳ࡞ۀ BQQMJDBUJPO
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
presentation ϨΠϠ 27 "1*Λ࣮͢Δٕज़ৄࡉ '0-*0ͩͱຆͲ͕5ISJGUͳͷͰɺϢʔεέʔε %UPͱ5ISJGUͷڮ͠ͳͲ͕ओͳׂ QSFTFOUBUJPO
ࣾͷ׳ྫ্ Adapter ͱಡΜͰ͍Δ͕ɼTranslator Converter ͷ΄͏͕͍ۙ (ൺֱత৽͍͠αʔϏεʹͦͷΑ͏ͳωʔϛϯά͋Δ) 28 RequestAdapter
ࣾͷ׳ྫ্ Adapter ͱಡΜͰ͍Δ͕ɼTranslator Converter ͷ΄͏͕͍ۙ (ൺֱత৽͍͠αʔϏεʹͦͷΑ͏ͳωʔϛϯά͋Δ) 28 RequestAdapter 5ISJGUͷϦΫΤετҾ
ࣾͷ׳ྫ্ Adapter ͱಡΜͰ͍Δ͕ɼTranslator Converter ͷ΄͏͕͍ۙ (ൺֱత৽͍͠αʔϏεʹͦͷΑ͏ͳωʔϛϯά͋Δ) 28 RequestAdapter ϢʔεέʔεͷϦΫΤετ%50
ͻͨ͢Β Thrift ͷੜͷΛ VO ܕʹΊ͜ΜͰ͍͘ 29 RequestAdapter implementation
RequestThrift → RequestDto → UseCase → ResponseDto → ResponseThrift 30
Gateway
RequestThrift → RequestDto → UseCase → ResponseDto → ResponseThrift 31
Gateway
Gateway ʹ·ͱΊΔͷ DI ʹ͓·͔ͤͯ͠… 32 components
Finatra ͷ controller ʹ৯ΘͤΔ 33 controller
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
presentation ϨΠϠ 34 QSFTFOUBUJPO
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
idl 35 JEM΄ͱΜͲ5ISJGU*%-ͷΈͰߏ͞Εͨαϒϓϩ δΣΫτ 5ISJGUͷ*%-ͷΈΛೖΕͨKBSϑΝΠϧΛެ։ *%-ͷίϯύΠϧެ։ଆͰͳ͘ར༻͢Δଆͷࣄ ࣗαʔϏεͷ5ISJGU*%-ΛίϯύΠϧ JEM JEMJOUFSOBM
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
idl-external 36 ґଘ͢ΔϚΠΫϩαʔϏεͷίϯύΠϧΛߦ͏ JEMFYUFSOBM
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
infrastructure 37 EPNBJOϨΠϠͰఆ͚ٛͩॻ͍ͨϨϙδτϦFUDΛ %#ΫΤϦɺ3FEJTίʔϧɺଞϚΠΫϩαʔϏε ίʔϧͰ࣮͢Δ JOGSBTUSVDUVSF
Finagle Client Λୟ͍ͯ Domain Model ʹ٧Ί͢ 38 external service invocation
implementation
Finagle Client Λୟ͍ͯ Domain Model ʹ٧Ί͢ 38 external service invocation
implementation 5ISJGU*%-͔Βੜ͞Εͨ'JOBHMF$MJFOU
Finagle Client Λୟ͍ͯ Domain Model ʹ٧Ί͢ 38 external service invocation
implementation ଞαʔϏεͷฦΓΛυϝΠϯʹॻ͖ى͜͢
EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF CBUDIPSTFSWFS FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
entrypoint 39 ࠷ऴతͳ࣮ߦΫϥεDPOpHVSBUJPOΛஔ͘ CBUDIPSTFSWFS FOUSZQPJOU
ੲ: ࠷ॳ͔Β͜ͷߏͰͳ͔ͬͨ 40 TFSWFS CBUDI QSFTFOUBUJPO DPNNPO %#QFSTJTUFODF JEM EPNBJO
BQQMJDBUJPO CBUDITQFDJpD BQQMJDBUJPO ҙਤ͍ͯ͠Δ͍ͳ͍ʹؔ ΘΒͣɼυϝΠϯϩδοΫ هड़ͱJEM͕ີʹͭͳ ͕͍ͬͯͨɽ 3FQPTJUPSZ͕5ISJGUߏ ମΛฦ͢ ଞαʔϏεͷ5ISJGUߏ ମΛͦͷ··͏ TFSWFSTQFDJpD BQQMJDBUJPO TFSWFSTQFDJpD JOGSB CBUDITQFDJpD JOGSB
Thrift ͷੜΛϏδωεϧʔϧهड़ʹ༻͍ͳ͍ 41 υϝΠϯϨΠϠΛ*%-͔Βੜͨ͠ఆٛʹґଘͤ͞ͳ͍ͷ͕ԿΑ Γେࣄ ϝϯςφϯε࣌ͷϥΠϑαΠΫϧ͕ҧ͏ "1*֎෦αʔϏεͱͷܖɽޙํޓੑΛۃྗอͭΑ͏ʹ ӡ༻͢Δ ࣗαʔϏεͷσʔλϞσϧαʔϏεͷਐḿʹैͬͯॊೈ ʹݟͨ͠ΓɼϦϑΝΫλϦϯά͍ͨ͠
σʔλߏΛυϥεςΟοΫʹมߋ͢Δ͜ͱଟ͘ͳ͍͕ɼ ໊લͷݟ͔͠ͳΓଟ͍ҹ ͜Ε·Ͱݟ͑ͳ͔ͬͨڥք Λݟग़ͨ͠Γ͢Δ ΦϒδΣΫτΛ͑ͳ͍ɻৼΔ͍ΛΦϒδΣΫτͷυϝ ΠϯΦϒδΣΫτʹدͤΒΕͳ͍
Finagle ΛͲ͏͏͔ 42
Finatra Λར༻ͨ͠αʔϏεͷςϯϓϨʔτΛࣾϥΠϒϥϦͱ͢Δ 43 ࣾϥΠϒϥϦ util-finagle-all
ఆظతʹΞοϓσʔτ͢Δ (ຌͦʹҰʁ) 44 util/util-finagle-all
TwitterServer admin ʹϖʔδΛՃ͢Δ 45 'JOBHMF4FSWJDFΛ5XJUUFS4FSWFSΛఴ͑ͯىಈ͢Δͱɺ )551BENJO6*͕ىಈͯ͠ɺ֤छϝτϦΫεUPHHMF ޙ ड़ ͷঢ়ଶ͕֬ೝͰ͖Δɻ ͜ͷ5XJUUFS4FSWFSͷBENJOϖʔδʹಠࣗͷϖʔδΛ
Ճ͢Δ͜ͱ͕ग़དྷΔɻ SFBEܥͷ"1*ͷதͷ֬ೝɺରސ٬ϝοηʔδૹ৴ͷϦτϥΠ ࣮ࢪ༻ͷӡ༻ϢʔςΟϦςΟΛઃ͚Δͷʹ͍ͬͯΔ ຊ൪ڥ4".-͔ΒϦμΠϨΫτ͢ΔΑ͏ʹͯ͠ɺಛఆͷϩʔϧ ͕Ξλον͞Ε͍ͯͳ͍ͱ৮Εͳ͍Α͏ʹͳ͍ͬͯΔ
TwitterServer HTTP Admin 46
ಠࣗʹՃͨ͠ϖʔδ͔Β API ฦΓΛݟΔ 47
ಠࣗʹՃͨ͠ϖʔδ͔Β API ฦΓΛݟΔ 47 Ճͨ͠ϝχϡʔ
ಠࣗʹՃͨ͠ϖʔδ͔Β API ฦΓΛݟΔ 47 "1*ͷதΛ֬ೝͰ͖ΔΑ͏ʹ
ϚΫϩͳ 48 Photo by timJ on Unsplash
ϚΠΫϩαʔϏεͷ ڥքΛݟग़͢ࢹ 49 Photo by Adli Wahid on Unsplash
ϚΠΫϩαʔϏεΛͲ͏Δ͔ 50 ʮϚΠΫϩαʔϏεͷڥքυϝΠϯڥքͰ͋ Δʯͱ͋Δ υϝΠϯڥքΛݟۃΊΔͷγεςϜΛ࡞Δਓ ͷࣄͳͷͰɼࣄۀαʔϏεͷ͚ͩ͋Δ '0-*0ͰͲ͏ଊ͍͑ͯΔ͔Λ͓͑͢Δ͜ͱͰ ࢀߟʹͳΕ
৫ͱͷҰக:ʮϓϩμΫτʯͱʮۀج൫ʯ 51 '0-*0Ͱɼ ਓͷސ٬͕ෳͷۚ༥Λӡ༻͢Δ ͦΕͧΕͷۚ༥ಠࣗͷӡ༻ϩδοΫΛ࣋ͭ ਓͷސ٬ͷޱ࠲։ઃ৹͚ࠪͩߦ͏ɽͭ·Γۚ ༥Λ·͍ͨͯސ٬JEͭ ސ٬ͷอ༗͢Δۚ༥͝ͱʹޱ࠲͕ଘࡏ͢Δ ͖͕ͩɼ࠷ऴతͳצఆॲཧू͢Δ͖ ͜ΕΛҙࣝͯ͠ɼۚ༥Ͱग़དྷ্͕ΔͭͷίϯςΩε
τΛʮϓϩμΫτʯͱݺͼɼϓϩμΫτΛ·͍ͨͰσʔλ Λѻ͏ྖҬΛʮۀج൫ʯͱݺͿΑ͏ʹ͍ͯ͠Δ
ʮϓϩμΫτʯͱʮۀج൫ʯ 52 ςʔϚࢿ ϫϯίΠϯࢿ ސ٬ج൫ ސ٬ใཧɼޱ࠲։ઃɼ$4ରԠ ূ݊ج൫ צఆཧɼೖग़ۚɼจཧFUD ͓·͔ͤࢿ ۀج൫
ϓϩμΫτ
ࣗࣾͱଞࣾ: ϑΝαʔυͰ͋Γഊࢭ 53 ۚ༥αʔϏεΛࢧ͑ΔγεςϜɼࣗࣾҎ֎ͷఏڙ͢ΔγεςϜʹ ґΔϘϦϡʔϜ͕େ͖͍ औҾॴϒϩʔΧʔͱͷจୡ גՁ৴ɼίϯηϯαε༧σʔλ৴ σʔλϕϯμʔ צఆܥγεςϜ
֎෦"41Λར༻ ۜߦৼࠐडγεςϜ ఏܞઌαʔϏεͱͷ࿈ܞ FUDʜ σʔλΛड͚͢ϓϩτίϧ͕ҧͬͨΓɼϕϯμʔಠࣗͷޠኮ֓ ೦Λϥοϓ͢ΔͨΊʹϚΠΫϩαʔϏεΛݐͯΔɽ'0-*0෦͔ Β͢Δͱഊࢭɼ֎෦͔ΒݟΔͱϑΝαʔυͱͯ͠ػೳ͢Δɽ
ྫ: ֎෦γεςϜͱϚΠΫϩαʔϏε 54 σʔλϕϯμʔ 40"1 9.- $47WJB4'51 ϕϯμʔಠࣗͷ
σʔϞϯόΠφϦ ͷαϒεΫϥΠϒ 3&45"1*$BMM '0-*0 ϑϩϯτ ސ٬ࢿ࢈ ࢀরܥ ཧ -*/&͚ 'BDBEF σʔλ৴ ϕϯμʔ σʔλऔΓ ࠐΈ
୭͕͏ʁσʔλͷྲྀΕʁ 55 ʮϢʔβʔʯจ຺ʹґͬͯͭͷҙ ຯΛ࣋ͪ͑Δ ސ٬ ࣾΦϖϨʔλʔίϯςϯπ νʔϜ ϑϩϯτΞϓϦέʔγϣϯ͕ҧ͏ 4DBMBαʔϏεಉҰϨϙδτϦ͔ ΒෳαʔόʔΛݐͯͨΓ͢Δ
BENJOͱUP$αʔϏεͰεέʔ ϧΛม͑ͨΓ͢Δ BENJOࣾΞϓϦ͚"1* TFSWJDFUP$αΠτ͚"1*
αʔϏεΛࢭΊͣʹӡ༻͠ଓ͚Δ ͨΊͷʁ 56 Photo by Eric Bruton on Unsplash
ࢄτϨʔγϯάͱ Datadog 57 ϑϩϯτΤϯυ͔ΒͷϦΫΤετෳͷϚΠΫϩαʔϏεͰॲ ཧ͞ΕΔ ֤αʔϏεෳΠϯελϯεͰ࣮ߦ͞ΕΔ ֤αʔϏεΠϯελϯεͷు͖ग़͢ϩάʹJE USBDF*E Λ͠ɼ ϦΫΤετશମͷॲཧͷྲྀΕΛͰ͖ΔΑ͏ʹ͢Δ
ͯ͢ͷϩά%BUBEPHʹू͠ɼ&3303ϩάݕग़࣌ 4MBDLʹ USBDF*E͖ͷ63-Λྲྀ͢Α͏ʹ͍ͯ͠Δ
traceId ͱ datadog 58
traceId ͱ datadog 59
ػೳτάϧ (Feature Toggle) 60 ػೳ͕༗ޮͰ͋Δ͔Ͳ͏͔Λࣔ͢ਅِΛαʔόʔͷঢ়ଶ ͱͯ͠อ࣋͢Δɽ ৽ػೳطଘػೳͷվળ͞ΕͨίʔυΛಈ࡞ڥʹσϓϩΠ ͭͭ͠ɼͦͷίʔυΛಈ࡞ͤ͞Δ͔Ͳ͏͔ΛUPHHMF͢Δɽ ࣮ߦ͞Ε͍ͯΔϓϩηεͷUPHHMFΛΓସ͑ΒΕΔɽ දࣔσʔλͷσʔλιʔεΓସ͑ύϑΥʔϚϯεվળͳ
ͲɼUPHHMFແͩ͠ͱσϓϩΠΛΘͳ͍ͱલޙൺֱΛߦ͑ ͳ͍มߋͷಋೖɼݕূͳͲʹར༻͢Δɽ 'JOBHMF͕GFBUVSFUPHHMFػೳΛ༗͍ͯ͠ΔͷͰͦΕΛ ׆༻͍ͯ͠Δɽ
ػೳτάϧ (Feature Toggle) 61 Toggle ͷฦΓʹΑͬͯڍಈ͢Δ࣮Λ͑Δ
ػೳτάϧ (Feature Toggle) 61 Toggle ͷฦΓʹΑͬͯڍಈ͢Δ࣮Λ͑Δ ಉ͡USBJUΛ࣮ͨ͠ ෳͷ࣮
ػೳτάϧ (Feature Toggle) 61 Toggle ͷฦΓʹΑͬͯڍಈ͢Δ࣮Λ͑Δ 5PHHMFJTA*OU#PPMFBOA
ػೳτάϧ (Feature Toggle) 61 Toggle ͷฦΓʹΑͬͯڍಈ͢Δ࣮Λ͑Δ ࣮ࡍͷUPHHMFͷฦΓʹґͬͯ
ػೳτάϧ (Feature Toggle) 61 Toggle ͷฦΓʹΑͬͯڍಈ͢Δ࣮Λ͑Δ ͲͪΒͷ࣮Λಈ͔͔ܾ͢ΊΔ
ػೳτάϧ (Feature Toggle) 62 ઃఆϑΝΠϧ: Γସׂ͑߹ΛࢦఆͰ͖Δ
݁߹ϦεΫ ΛݮΒ͢ 63 "1*ͷޓੑطଘͷ"1*ͷޙํޓੑͳΔ่͘͞ͳ͍ ઃܭͷ #SFBLJOH$IBOHFΑΓ৽"1* Ϗοάόϯ݁߹ϦϦʔεΛ͠ͳ͍େ͖ͳ৽ػೳ৽ϓϩμΫ τϦϦʔεͷࡍɼΘΕͳ͍"1*͔ΒૣΊʹϦϦʔεΛ ͠ɼຊ൪ͱ։ൃڥͰͷϞδϡʔϧͷࠩҟΛখ͘͞อͭΑ͏ ʹ͢Δ
ЋϦϦʔεϑϩϯτΤϯυڥΛ௨ৗͷͷʹՃ͑ͯࣾ ݶఆͰΞΫηεڥΛߏங͠ɼ৽ػೳΛࣾϝϯόʔ͕ઌߦ ͯ͠ӡ༻ͯ͠Λݟ͚ͭग़͢
ࠓޙͷ՝ 64 Photo by Hans-Peter Gauster on Unsplash
େҬత CQRS తͳϦΞʔΩςΫνϟϦϯά 65 τϥσΟγϣφϧͳূ݊ձࣾʹʮϑϩϯτϛυϧόοΫΦ ϑΟεʯͱ͍͏৬ػೳͷྨ͕͋Δɽ ϑϩϯτऩӹΛ্͛Δ෦ɽ ωοτূ݊ͩͱސ٬͕จΛग़͠ɼऔҾΛߦ͏෦ ϛυϧϑϩϯτͷ׆ಈͷ݁ՌͷϞχλϦϯά όοΫϑϩϯτͷ׆ಈͷ݁Ռͷࣄޙॲཧ
ࣄɼצఆFUDʜ ϑϩϯτϛυϧόοΫ͝ͱʹγεςϜʹٻΊΒΕΔੑ֨ҟ ͳΔ ϑϩϯτऔҾओମͷίϚϯυΛड͚͚ͯॲཧΛ͢Δݎ࿚͔ ͭߴεϧʔϓοτͰ͋Δ͜ͱɽऩӹྗɽ ϛυϧ෯͍σʔλͷҰ؏ੑͷ͋Δࢀর όοΫεέʔϥϏϦςΟ
େҬత CQRS తͳϦΞʔΩςΫνϟϦϯά 66 '0-*0ͷαʔόʔαΠυγεςϜʮϑϩϯτϛυϧ όοΫΦϑΟεʯͷ͚Λҙࣝ͠ͳ͍··։ൃͨ݁͠ Ռɼͯ͢ͷϨΠϠʹ؏௨ͨ͠ϚΠΫϩαʔϏε͕ଘࡏͯ͠ ͍Δ ϑϩϯτγεςϜ$PNNBOE ϛυϧγεςϜ
2VFSZɼόοΫγεςϜଞͱҟͳΔ࣍όονॲཧɼͱ ͍͏͝ͱͷੑ֨ʹԠͨ͡Γͷ࠷దԽͱϦΞʔΩςΫ νϟϦϯάΛਐΊ͍ͨ
Ұ෦ॖୀӡ༻ 67 ϑϩϯτΤϯυͰଟͷϚΠΫϩαʔϏεͷޭϨεϙϯεΛ͢ ͯूͰ͖ͳ͍ͱϫʔΫ͠ͳ͍έʔε͕͋Δɽ Ұ෦ͷαʔϏε͕μϯ͍ͯ͠Δͱ͖ɼͦͷαʔϏεʹ֘͢Δ ػೳͷΈϑϩϯτͰEJTBCMFʹͯ͠ଞͷػೳͳ͘ճΔ Έ͕΄͍͠ɽ͜Ε͕Ͱ͖ΔͱαʔΩοτɾϒϨΠΫࣗ৴Λ ࣋ͬͯऔΓΊΔɽ લड़ͨ͠ϦΞʔΩςΫνϟϦϯάؚΊͨαʔϏεؒґଘͷཧ ɼϑϩϯτΤϯυͷΈվमؚΊͯऔΓΉඞཁ͕͋Δɽ
ϨΠϠΞʔΩςΫνϟͷະདྷ…?? 68 αʔϏε୯ମͷ࣮ΛݟΔͱ Ͳ͏ͯ͠ϘΠϥʔϓϨʔτ ͕ଟ͍ ੜ࢈ੑΛ্͛ΔͨΊʹͲ͏͠ Α͏ʜ ͯ͢ͷαʔϏε͕͜ͷߏ Λ౿ऻ͢Δ͖͔ݕ౼ͷ༨
͋Γʜ͕ͩɼࢦະͩແ ͍ EPNBJO BQQMJDBUJPO QSFTFOUBUJPO *OGSBTUSVDUVSF FOUSZQPJOU JEMJOUFSOBM JEMFYUFSOBM JEM
·ͱΊ 69 Photo by Kelly Sikkema on Unsplash
·ͱΊ: ͨΓલͷ͜ͱͰ͕͢ 70 దͳϨΠϠʔυΞʔΩςΫνϟΛ༻͍ͯϏδωεͷม Խʹڧ͍γεςϜΛ࡞Δ ϚΠΫϩαʔϏεͷڥքΛਖ਼͘͠ݟग़ͨ͢Ίʹɼࣗͨ ͕࣮ͪ͢ΔϏδωεྖҬͱ͔ͬ͠Γ͖߹͏ ϚΠΫϩαʔϏεͷ҆ఆӡ༻ͱܧଓతͳਐԽͷͨΊͷٕ ज़அΛ͢Δ
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