資産運用スタートアップの開発で採用した、PlayによるClean Arcitectureでの設計・開発事例

ࢿ࢈ӡ༻ελʔτΞοϓͷ։ൃͰ࠾༻ͨ͠
1MBZʹΑΔ$MFBO"SDIJUFDUVSFͰͷ
ઃܭɾ։ൃࣄྫ
גࣜձࣾΫϥ΢υϙʔτ
एদ ܚ৴
ˏ4DBMBؔ੢ 4VNNJU
4DBMBؔ੢ 4VNNJU

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4QFBLFS
גࣜձࣾΫϥ΢υϙʔτ
एদ ܚ৴ !ZTIOC

普段やっていること
• Scalaによるバックエンドも含む開発・運⽤など
4DBMBؔ੢ 4VNNJU

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0VUMJOF
• ࢿ࢈ӡ༻αʔϏεͷ։ൃഎܠ
• $MFBO"SDIJUFDUVSFͱͦͷղऍ
• 'VOETͷΞʔΩςΫνϟͱ࣮૷ͷ۩ମྫ
• ·ͱΊ
4DBMBؔ੢ 4VNNJU

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ࠓճࣄྫΛ࿩͢ࢿ࢈ӡ༻αʔϏε
4DBMBؔ੢ 4VNNJU

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資産形成をしたい個⼈とお⾦を借りたい企業を結ぶ、
「貸付ファンド」のオンラインマーケット
第⼆種⾦融商品取引業者のクラウドポートが運営

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4DBMBؔ੢ 4VNNJU

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ϑΝϯυ
૊੒اۀ
౤ࢿՈ आΓखاۀ
ϑΝϯυ΁ग़ࢿ ି෇
͓ۚΛି͢
お⾦を集める
'VOETͷ͘͠Έ
4DBMBؔ੢ 4VNNJU

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ϑΝϯυ
૊੒اۀ
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ϑΝϯυ΁ग़ࢿ ି෇
෼഑ ฦࡁ
རଉΛؚΊͯ
͓ۚΛฦ͢
ӡ༻͞Εͨ
͓ۚΛड͚औΔ
'VOETͷ͘͠Έ
4DBMBؔ੢ 4VNNJU

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αʔϏε։ൃͷഎܠ
4DBMBؔ੢ 4VNNJU

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αʔϏε։ൃͷલఏ৚݅
• اըʙϩʔϯν·Ͱ൒೥ఔ౓ͷ։ൃظؒʢ౰ॳ༧ఆʣ
• ۚ༥αʔϏεͳΒͰ͸ͷෳࡶͳυϝΠϯ
• ূ݊ձࣾɾܾࡁαʔϏεͳͲͱ͸ҟͳΓɺ
طଘͷۚ༥αʔϏεͱͷ઀ଓ͸ඞཁͳ͍
4DBMBؔ੢ 4VNNJU

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։ൃ͢ΔνʔϜͷঢ়گ
• αʔόαΠυͰ͸ͳ͘શମͰΤϯδχΞ໊
• ։ൃνʔϜͰϞχλϦϯάͳͲͷӡ༻΋୲౰
• ӡ༻։࢝ޙͷਓతͳӡ༻ෛՙ͕௿͍͜ͱ͕ॏཁ
4DBMBؔ੢ 4VNNJU

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γεςϜΞʔΩςΫνϟ
#BDLFOE4FSWJDF 4DBMB

DB, Datastore, External REST Services, etc.
4FSWJDFGSPOUFOE "ENJOGSPOUFOE
3&45"1* 3&45"1*
4DBMBؔ੢ 4VNNJU

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౤ࢿՈ޲͚
΢ΣϒαΠτ
3&45"1* 3&45"1*
ࣾ಺޲͚
ΦϖϨʔγϣϯը໘
αʔϏε͝ͱʹಠཱɾૄ݁߹ͳϑϩϯτΤϯυ
4DBMBؔ੢ 4VNNJU

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3&45"1* 3&45"1*
ڞ௨όοΫΤϯυ
αʔϏε
υϝΠϯ͕ෳࡶɾີ઀ʹؔ܎͢ΔόοΫΤϯυ͸
ϞϊϦγοΫͳαʔϏεͰߏ੒
4DBMBؔ੢ 4VNNJU

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ϞϊϦγοΫͳΞʔΩςΫνϟͷ࠾༻

• αʔόαΠυͰ͸ͳ͘શମͰΤϯδχΞ໊
• ։ൃνʔϜͰϞχλϦϯάͳͲͷӡ༻΋୲౰
• ӡ༻։࢝ޙͷਓతͳӡ༻ෛՙ͕௿͍͜ͱ͕ॏཁ
ڽूੑͷߴ͍ϓϩδΣΫτͷํ͕ޮ཰͕Α͍
4DBMBؔ੢ 4VNNJU

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• υϝΠϯͷؔ܎੔ཧ͸೉͍͠
• ޡͬͨίϯςΩετͷ෼ׂ͸ෳࡶ͚ͩ͞ΛߴΊͯ͠·͏
ΞΧ΢ϯτ
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υϝΠϯ಺ͷؔ܎ੑ͕੔ཧ͞ΕΔ·Ͱมߋίετͷ௿͍ߏ଄Λ࠾༻͍ͨ͠
σϙδοτ࢒ߴ
ࢿۚҠಈ
ސ٬
'VOETʹ͓͚ΔίϯςΩετͷྫ
4DBMBؔ੢ 4VNNJU

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• ϞϊϦγοΫͳΞʔΩςΫνϟͰ΋มԽʹରԠ͍ͨ͠
• ίϯςΩετͰ͸ͳ͘ந৅౓ΑΔ෼ྨ͸ൺֱతཧղ͠΍͍͢
ΞϓϦέʔγϣϯΞʔΩςΫνϟͱͯ͠$MFBO"SDIJUFDUVSFΛ׆༻
4DBMBؔ੢ 4VNNJU

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0VUMJOF
• ·ͱΊ
4DBMBؔ੢ 4VNNJU

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$MFBO"SDIJUFDUVSFͱͦͷղऍ
4DBMBؔ੢ 4VNNJU

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4DBMBؔ੢ 4VNNJU

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ந৅౓ʹΑΔϨΠϠʔͷ෼཭
ç
4DBMBؔ੢ 4VNNJU

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$MFBO"SDIJUFDUVSFͰఆٛ͞ΕΔϨΠϠʔ
ϨΠϠʔ ϨΠϠʔͷ֓ཁ
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اۀશମͷϏδωεϧʔϧ
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ΞϓϦέʔγϣϯݻ༗ͷϧʔϧɾϩδοΫ
*OUFSGBDF"EBQUFST ೖग़ྗɾӬଓԽɾ%#ඇґଘͷ42-ͳͲ
'SBNFXPSLT%SJWFST ϑϨʔϜϫʔΫ΍υϥΠόͳͲ
4DBMBؔ੢ 4VNNJU

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%FQFOEFODZ3VMF
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Ұํ޲ͷґଘʢٯํ޲ͷґଘΛೝΊͳ͍ʣ
ç
$MFBO"SDIJUFDUVSFʹ͓͚Δॏཁͳίϯηϓτ
4DBMBؔ੢ 4VNNJU

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%FQFOEFODZ3VMFͱґଘؔ܎ٯసͷݪଇ
• ґଘؔ܎ٯసͷݪଇʢ%*1ʣ40-*%ͷݪଇͷͭ
• ৄࡉ͕ந৅ʹґଘ͢΂͖
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• %*1ΛΑΓ۩ମతͳܗͰड़΂ͨ΋ͷ
4DBMBؔ੢ 4VNNJU

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ಉ৺ԁͷ಺ଆΛ௨ա͢Δ੍ޚͷྲྀΕ
ç
4DBMBؔ੢ 4VNNJU

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ΠϯλʔϑΣΠεʹΑΔ੍ޚͷ൓స
• ಺ଆ͔Β֎ଆͷϞδϡʔϧΛݺͼग़͢ඞཁ͕͋Δ৔߹ʹ
಺ଆͷϨΠϠʔʹΠϯλʔϑΣΠεΛఆٛ
• ֎ଆͷϨΠϠʔͰ͸಺ଆͰఆٛ͞Εͨ
ΠϯλʔϑΣΠεʹରͯ͠۩ମత࣮૷Λ༩͑Δ
4DBMBؔ੢ 4VNNJU

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$MFBO"SDIJUFDUVSFͷΤοηϯε
• ந৅౓ʹԠͯ͡ϨΠϠʔΛ෼཭͢Δ
• %FQFOEFODZ3VMFͰந৅౓ͷߴ͍ํ޲΁ґଘͤ͞Δ
• ಺ଆˠ֎ଆͱ͍͏੍ޚͷྲྀΕΛ࣮ݱ͢ΔͨΊʹ
ΠϯλʔϑΣΠεΛ׆༻͢Δ
4DBMBؔ੢ 4VNNJU

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0VUMJOF
• ·ͱΊ
4DBMBؔ੢ 4VNNJU

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'VOETʹ͓͚Δ$MFBO"SDIJUFDUVSF
$MFBO"SDIJUFDUVSFͷΤοηϯεΛ׆༻͠
ٕज़తͳৄࡉ͔Β෼཭ͨ͠ΞϓϦέʔγϣϯͷઃܭ΁
4DBMBؔ੢ 4VNNJU

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'VOETͰ࠾༻͍ͯ͠ΔϨΠϠʔߏ଄
ϨΠϠʔ ϨΠϠʔͷ֓ཁ
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"QQMJDBUJPO ΞϓϦέʔγϣϯݻ༗ͷϩδοΫ
*OUFSGBDF ೖग़ྗ΍ͦͷදݱ
*OGSBTUSVDUVSF
෭࡞༻Λ࣮࣋ͭ૷
ʢ%# 3&454FSWJDF FUD

4DBMBؔ੢ 4VNNJU

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*OGSBTUSVDUVSF
*OUFSGBDFT
"QQMJDBUJPO
%PNBJO
ϨΠϠʔͷґଘؔ܎
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ԼҐϨΠϠʔͷґଘ͸ೝΊΔ
ϨΠϠʔΛ·͙ͨґଘ΋ೝΊΔ
ԼҐϨΠϠʔ͔Β্ҐϨΠϠʔͷ
ґଘ͸ೝΊͳ͍
4DBMBؔ੢ 4VNNJU

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੍ޚͷྲྀΕͱΠϯλʔϑΣΠε
• ੍ޚͷྲྀΕ্Ґ ˠ ԼҐʢந৅΁ͷґଘʣ
• ΠϯλʔϑΣΠεΛ໌ࣔతʹఆٛͤͣ௚઀ݺͼग़͠
• ࣮૷͔Β෼཭͢ΔԸܙ͕গͳ͍ͱ൑அ
• ੍ޚͷྲྀΕԼҐ ˠ ্Ґʢৄࡉ΁ͷґଘʣ
• ݪଇ௨ΓԼҐϨΠϠʔͰΠϯλʔϑΣΠεΛఆٛɾ࣮૷Λ༩͑Δ
4DBMBؔ੢ 4VNNJU

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ύοέʔδͷશମ૾
ϨΠϠʔͷ
ύοέʔδߏ੒
ͦͷଞͷύοέʔδ
4DBMBؔ੢ 4VNNJU

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࣮૷ύλʔϯͷ۩ମྫ
• 1MBZ'SBNFXPSLΛ׆༻͢Δ੍ޚͷྲྀΕ
• 3FQPTJUPSZͷઃܭͱ*OGSBTUSVDUVSFͷ࣮૷
• ΞϓϦέʔγϣϯʹ͓͚Δ%*
4DBMBؔ੢ 4VNNJU

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1MBZ'SBNFXPSLΛ׆༻͢Δ੍ޚͷྲྀΕ
*OGSBTUSVDUVSF
*OUFSGBDFT
"QQMJDBUJPO
%PNBJO
1MBZΛ࢖༻͢ΔϨΠϠʔ $POUSPMMFS
6TF$BTF
4DBMBؔ੢ 4VNNJU

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1MBZ'SBNFXPSLΛ׆༻͢Δ੍ޚͷྲྀΕ
3FRVFTU.PEFM
+40/

6TF$BTF
+40/

3FTQPOTF.PEFM
2VFSZ
$POUSPMMFS "DUJPO

JOUFSGBDF
BQQMJDBUJPO
4DBMBؔ੢ 4VNNJU

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੍ޚͷྲྀΕ$POUSPMMFS "DUJPO

3FRVFTU.PEFM
+40/

6TF$BTF
+40/

3FTQPOTF.PEFM
2VFSZ
$POUSPMMFS "DUJPO

JOUFSGBDF
BQQMJDBUJPO
4DBMBؔ੢ 4VNNJU

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੍ޚͷྲྀΕ$POUSPMMFS "DUJPO

def getList: Action[AnyContent] = asyncSecuredJsonAction(defaultRoles) { implicit request =>
...
usecase.fetchCustomerList.perform(customerCondition).map {
case (customers, count) =>
Response(200, ListResponse(count, customers.map(CustomerCardDetailResponseModel.apply)))
}
}
• 1MBZͷ$POUSPMMFS "DUJPO
Λ࢖༻
• ೖग़ྗܗࣜͷม׵ͱ6TF$BTFͷݺͼग़͠ʹݶఆ͢Δ࣮૷ϧʔϧ
4DBMBؔ੢ 4VNNJU

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੍ޚͷྲྀΕ6TF$BTF
3FRVFTU.PEFM
+40/

6TF$BTF
+40/

3FTQPOTF.PEFM
2VFSZ
$POUSPMMFS "DUJPO

JOUFSGBDF
BQQMJDBUJPO
4DBMBؔ੢ 4VNNJU

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੍ޚͷྲྀΕ6TF$BTF
case class FetchCustomerList()(
implicit val customerRepository: CustomerReadRepository,
implicit val ec: ExecutionContext
) extends UseCase {
def perform(customerCondition: CustomerQueryCondition): Future[(Seq[Customer], Int)] = {
for {
customers <- customerRepository.findByCondition(customerCondition)
count <- customerRepository.countByCondition(customerCondition)
} yield {
(customers, count)
}
}
}
• ΞϓϦέʔγϣϯݻ༗ͷಈ࡞Λ࣮૷
• 6TF$BTF୯ҐͰΫϥεΛ෼཭
4DBMBؔ੢ 4VNNJU

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੍ޚͷྲྀΕ3FTQPOTF.PEFM
3FRVFTU.PEFM
+40/

6TF$BTF
+40/

3FTQPOTF.PEFM
2VFSZ
$POUSPMMFS "DUJPO

JOUFSGBDF
BQQMJDBUJPO
4DBMBؔ੢ 4VNNJU

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੍ޚͷྲྀΕ3FTQPOTF.PEFM
• ϨεϙϯεͷܕΛDBTFDMBTTͰఆٛ
• &OUJUZ͋Δ͍͸ͦͷू໿͔Β3FTQPOTF.PEFMΛड͚औΓγϦΞϥΠζ
case class CustomerStatusResponseModel(
code: String,
name: String,
) extends ResponseModel
object CustomerStatusResponseModel {
import CustomerPresenter._
def apply(status: CustomerStatus) = {
new CustomerStatusResponseModel(
status.code,
status.name
)
}
}
4DBMBؔ੢ 4VNNJU

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4XBHHFSͷ࢓༷ͱ࣮૷্ͷܕͷ౷Ұ
case class CustomerStatusResponseModel(
code: String,
name: String,
) extends ResponseModel
object CustomerStatusResponseModel {
import CustomerPresenter._
def apply(status: CustomerStatus) = {
new CustomerStatusResponseModel(
status.code,
status.name
)
}
}
4XBHHFS্Ͱͷఆٛ
4XBHHFSͰఆٛͨ͠ܕͱΞϓϦέʔγϣϯ্Ͱ࣮૷͢Δํͷ౷Ұ
ΞϓϦέʔγϣϯ্ͷ࣮૷
4DBMBؔ੢ 4VNNJU

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4DBMBؔ੢ 4VNNJU

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3FQPTJUPSZͷઃܭͱ*OGSBTUSVDUVSFͷ࣮૷
*OGSBTUSVDUVSF
*OUFSGBDFT
"QQMJDBUJPO
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3FQPTJUPSZ
4DBMBؔ੢ 4VNNJU

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%PNBJO
υϝΠϯݻ༗ͷ֓೦ɾ
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ओͳߏ੒ཁૉ
• &OUJUZ 7BMVF0CKFDU΋ؚΉʣ
• %PNBJO4FSWJDF
• 3FQPTJUPSZ
4DBMBؔ੢ 4VNNJU

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3FQPTJUPSZ
• ӬଓԽɾӬଓԽ͞ΕͨσʔλͷࢀরΛఏڙ͢ΔΠϯλʔϑΣΠε
• %#͚ͩͰͳ͘3&454FSWJDF $MJFOUͳͲɺ
෭࡞༻Λ൐͏೚ҙͷૢ࡞ͷΠϯλʔϑΣΠεͱͯ͠ఆٛ
trait CustomerReadRepository extends ReadRepository
with CustomerBaseRepository
trait CustomerBaseRepository {
def findCustomers: Future[Seq[Customer]]
}
4DBMBؔ੢ 4VNNJU

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trait CustomerRepository extends ReadWriteRepository
with CustomerBaseRepository {
def save(customer: Customer): Future[ID[Customer]]
}
trait CustomerReadRepository extends ReadRepository
with CustomerBaseRepository
trait CustomerBaseRepository {
def findCustomers: Future[Seq[Customer]]
}
SFBEPOMZ
SFBEXSJUFՄೳ
SFBEPOMZXSJUBCMFͳΠϯλʔϑΣΠε෼཭
4DBMBؔ੢ 4VNNJU

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class FindCustomers(
implicit
val customerRepository: CustomerReadRepository,
val ec: ExecutionContext,
) extends UseCase {
def perform(): Future[Seq[Customer]] = {
...
val customersF = customerRepository.findCustomers
...
}
}
ಡΈऔΓઐ༻Ͱ͋Δ͜ͱ͕
อূ͞Ε͍ͯΔ
੍ݶͷ͋Δ࣮૷Λద༻Մೳ
ʢFHSFBEFSFOEQPJOUͷ࢖༻

SFBEPOMZXSJUBCMFͳΠϯλʔϑΣΠε෼཭
4DBMBؔ੢ 4VNNJU

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*OGSBTUSVDUVSF࣮૷ͷྫ
• %#BDDFTT 4MJDL

• 3FEJT
• 3&454FSWJDF )551

• 4.51
• ϚωʔδυαʔϏεʢ"NB[PO424 4 ,.4 FUDʣ
4DBMBؔ੢ 4VNNJU

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*OGSBTUSVDUVSFͷ࣮૷ྫ4MJDL
• 'VOETͰ͸%#BDDFTTʹ4MJDLΛ࠾༻
• ͦͷଞͷબ୒ࢶRVJMM 4DBMJLF+%#$ FUD
4DBMBؔ੢ 4VNNJU

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trait CustomerTable extends ColumnMappers {
this: Profile =>
import profile.api._
class Customers(tag: Tag) extends Table[CustomerRow](tag, "customer") {
def id = column[ID[Customer]]("id", O.SqlType("INT"), O.PrimaryKey, O.AutoInc)
def email = column[String]("email", O.SqlType("VARCHAR(256)"))
def status = column[CustomerStatus]("status", O.SqlType("INT"))
...
type TableRecord = (Option[ID[Customer]], String, CustomerStatus)
def * = (id.?, email, status) <> (
(t: TableRecord) => {
val (id, email, status_) = t
CustomerRow(id, email, status)
},
(customer: CustomerRow) => {
Option((customer.id, customer.email, customer.status))
}
)
}
}
4DBMBؔ੢ 4VNNJU

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class CustomerDAO(val dbConfig: DatabaseConfig[JdbcProfile])(implicit val ec: ExecutionContext)
extends CustomerDAOLike
with Profile
with DefaultSlickDBConfig
trait CustomerDAOLike extends CustomerRepository
with CustomerReadRepository
with CustomerTable
this: Profile with SlickDBConfig[JdbcProfile] =>
def save(customer: Customer) = {
val query = customerQuery += customer
db.run(query.transactionally)
}
...
}
4DBMBؔ੢ 4VNNJU

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*OGSBTUSVDUVSFͷ࣮૷ྫ3&45 4FSWJDF
trait CustomerRestServiceLike extends CustomerReadRepository {
implicit val ec: ExecutionContext
val client: WSClient
val baseUrl: String
lazy val baseUrl = s”..."
def findCustomers: Future[Seq[Customer]] = {
val requestUrl = s"$baseUrl/customer"
for {
response <- client.url(requestUrl).get()
} yield {
val results = for {
...
} yield result
}
results.flatten
}
}
}
4DBMBؔ੢ 4VNNJU

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*OGSBTUSVDUVSFͷ࣮૷ͱަ׵Մೳੑ
• Ͳͷٕज़తৄࡉͰ΋3FQPTJUPSZΛ࣮૷ʢ·ͨ͸࣮૷Մೳʣ
• ϏδωεϩδοΫΛมߋ͢Δ͜ͱͳٕ͘ज़తৄࡉΛมߋͰ͖Δ
• ύϑΥʔϚϯεͷվળ
• 3FQPTJUPSZΛڥքͱͨ͠αʔϏεͷ෼ׂ
4DBMBؔ੢ 4VNNJU

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4DBMBؔ੢ 4VNNJU

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)PXUP%*
• 4DBMBʹ͓͚Δબ୒ࢶ͸ (VJDF .BDXJSF FUD
• 'VOETͰ͸͋͑ͯ*NQMJDJUQBSBNFUFSʹΑΔ%*Λ࢖༻
4DBMBؔ੢ 4VNNJU

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ΞϓϦέʔγϣϯͷॳظԽ
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4DBMBؔ੢ 4VNNJU

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• ܕ҆શੑͷԸܙΛಘΒΕΔ੩త%*Λ࠾༻͍ͨ͠
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4DBMBؔ੢ 4VNNJU

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trait InfrastructureComponents
extends DatabaseComponents
with CacheLayerComponents
with S3Components
... {
this: BuiltInComponentsFromContext =>
}

ϨΠϠʔ୯ҐͰͷ$PNQPOFOUʹNJYJO
trait DatabaseComponents extends SlickComponents {
implicit lazy val customerDAO: CustomerRepository = new CustomerDAO(dbConfig)
implicit lazy val customerReadDAO: CustomerReadRepository = new CustomerDAO(slaveDbConfig)
...
}

ύοέʔδ͝ͱͷΠϯελϯεॳظԽΛఆٛ
4DBMBؔ੢ 4VNNJU

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class ApplicationComponents(context: Context)
extends BuiltInComponentsFromContext(context)
with I18nComponents
with HttpFiltersComponents
with AdminControllerComponents
with ServiceControllerComponents
with InfrastructureComponents {
...
}

֤ϨΠϠʔͷ$PNQPOFOUTΛ"QQMJDBUJPO$PNQPOFOUT΁NJYJO
class MainApplicationLoader extends ApplicationLoader {
def load(context: Context): Application = {
new ApplicationComponents(context).application
}
}

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4DBMBؔ੢ 4VNNJU

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ಉҰΠϯλʔϑΣΠε্ͷ࣮૷ͷަ׵
trait DatabaseComponents extends SlickComponents {
implicit lazy val customerDAO: CustomerRepository = new CustomerDAO(dbConfig)
implicit lazy val customerReadDAO: CustomerReadRepository = new CustomerDAO(slaveDbConfig)
}
σϑΥϧτͰղܾ͞ΕΔ࣮૷ʢJNQMJDJU

lazy val adminCustomerComponents = new CustomerComponents {
import CustomerComponents._
val fetchCustomerList = FetchCustomerList()
...
}
4DBMBؔ੢ 4VNNJU

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ಉҰΠϯλʔϑΣΠε্ͷ࣮૷ͷަ׵
ίϯετϥΫλύϥϝʔλͰ࣮૷Λ໌ࣔతʹࢦఆ
lazy val adminCustomerComponents = new CustomerComponents {
import CustomerComponents._
val fetchCustomerList = FetchCustomerList(cachedCustomerDAO, ec)
...
}
trait CacheLayerComponents {
this: BuiltInComponentsFromContext with RedisComponents with DatabaseComponents =>
lazy val cachedCustomerDAO: CusotmerReadRepository =
new CustomerRedisCache(customerReadDAO)(redisClient, executionContext)
}
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4DBMBؔ੢ 4VNNJU

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0VUMJOF
• ·ͱΊ
4DBMBؔ੢ 4VNNJU

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·ͱΊ
• αʔϏεͱ$MFBO"SDIJUFDUVSFͷݕ౼എܠʹ͍ͭͯ
• ΞϓϦέʔγϣϯͱ۩ମతͳ࣮૷ύλʔϯͷྫΛ঺հ
4DBMBؔ੢ 4VNNJU

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͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠
4DBMBؔ੢ 4VNNJU

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資産運用スタートアップの開発で採用した、PlayによるClean Arcitectureでの設計・開発事例

資産運用スタートアップの開発で採用した、PlayによるClean Arcitectureでの設計・開発事例

Yoshinobu Wakamatsu

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