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͓͡ͷಛੑ
)
(
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͓͡ͷੜ͖ํ
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ͬͯΈΔ
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ޱ࠲ "DDPVOU
ࣝผ൪߸
ঢ়ଶ
ཤྺ
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ۜߦޱ࠲
ޱ࠲൪߸
ߴ ঢ়ଶ
ཤྺ
ೖۚɾग़ۚ
ࡏݿ
൪߸
ࡏݿ
ཤྺ
ೖݿɾग़ݿ
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ࡏݿ
൪߸
ࡏݿ
ཤྺ
ೖݿɾग़ݿ
(
)
)
) C ) C D
) C BE
Q S
)C )
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https://www.slideshare.net/AmazonWebServices/messaging-in-the-aws-cloud
https://www.slideshare.net/AntonUdovychenko/going-serverless-with-cqrs-on-aws
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Stock Entity
State
{ 'available’: 17,'reserved’: 3, 'bought’: 2 }
Stock
Methods
Calculate(orders, initial_stock)
ɾɾɾ
Attributes
id
name
state
[Orders]
Events
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$PNNBOE
&WFOU
&WFOU
4UPSF
4UBUF
%ZOBNP%#4USFBNT
'PMEJOH
/INSERT
Amazon API Gateway
Amazon API Gateway
'PMEJOH
%FGFSFODF
2VFSZ
INSERTͷΈ
Query
INSERT/REMOVE
AT LEAST ONCE
Snapshot
#BDLVQ /REMOVE
Other
Service
Message
.FTTBHF#VT
&WFOU
4UPSF
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$PNNBOE
&WFOU
&WFOU
4UPSF
4UBUF
'PMEJOH
/INSERT
Amazon API Gateway
Amazon API Gateway
'PMEJOH
%FGFSFODF
2VFSZ
INSERTͷΈ
Query
INSERT/REMOVE
AT LEAST ONCE
Snapshot
ࡏݿ
൪߸
ࡏݿ
ཤྺ
ೖݿɾग़ݿ
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Folding (reduce)
Snapshots
{ 'available’: 17, 'reserved’: 0, 'bought’: 3 }
5
111
4
{ 'available’: 15, 'reserved’: 2, 'bought’: 3 }
111
3
{ 'available’: 15, 'reserved’: 5, 'bought’: 0 }
111
{ 'available’: 17, 'reserved’: 3, 'bought’: 0 }
2
111
1
version state
item id
111
{ 'available’: 20, 'reserved’: 0, 'bought’: 0 }
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$PNNBOE
&WFOU
&WFOU
4UPSF
4UBUF
%ZOBNP%#4USFBNT
'PMEJOH
/INSERT
Amazon API Gateway
Amazon API Gateway
'PMEJOH
%FGFSFODF
2VFSZ
INSERTͷΈ
Query
INSERT/REMOVE
AT LEAST ONCE
Snapshot
#BDLVQ /REMOVE
Other
Service
Message
.FTTBHF#VT
&WFOU
4UPSF
Overview
(3 ) E
) g
S Fd
M
)3 D M
D e U E
a
) ) M
) D B
)
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Clean Architecture
&
B
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Controller
dict
Entity
Repository DataStore
ResponseObject
UseCase
RequestObject
request_object
request_object
response_object
response_object
dict dict
entity
entity
entity
entity
entity
dict
entity
Amazon DynamoDB
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device_contrller
lambda_handler
DeviceRegisterUseCase
OipMfpDevice
DeviceRepository
DeviceDataStore
DynamoDB
() ) )
Stock
Methods
Calculate(orders, initial_stock)
ɾɾɾ
Attributes
id
name
state
[Orders]
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