결제 전환 목표 아키텍처 정의 (SPRING-ARC-REF-FINAL-1783833422)
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docs/architecture/transaction-sequence.md
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docs/architecture/transaction-sequence.md
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sequenceDiagram
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participant User
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participant Controller
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participant Service
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participant Repository
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participant ExternalGateway
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User->>Controller: 결제 요청
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Controller->>Service: 결제 처리 요청
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Service->>Repository: 트랜잭션 시작
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Service->>ExternalGateway: 결제 요청
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alt 결제 성공
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ExternalGateway-->>Service: 결제 성공 응답
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Service->>Repository: 트랜잭션 커밋
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Repository-->>Service: 커밋 완료
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Service-->>Controller: 결제 완료 응답
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Controller-->>User: 결제 완료
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else 외부 실패
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ExternalGateway-->>Service: 결제 실패 응답
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Service->>Repository: 트랜잭션 롤백
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Repository-->>Service: 롤백 완료
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Service-->>Controller: 결제 실패 응답
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Controller-->>User: 결제 실패
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else DB 실패
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Service->>Repository: 트랜잭션 롤백
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Repository-->>Service: 롤백 완료
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Service-->>Controller: DB 오류 응답
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Controller-->>User: DB 오류
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