spring-architecture-schema-1783830385/docs/architecture/transaction-sequence.md

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sequenceDiagram participant User participant PaymentGateway participant Database

User->>PaymentGateway: Initiate Payment
alt Successful Payment
    PaymentGateway->>Database: Commit Transaction
    Database-->>PaymentGateway: Confirm Commit
    PaymentGateway-->>User: Payment Success
else External Failure
    PaymentGateway-->>User: Payment Failure
else DB Failure
    PaymentGateway->>Database: Rollback Transaction
    Database-->>PaymentGateway: Confirm Rollback
    PaymentGateway-->>User: Payment Rollback
end