23 lines
No EOL
718 B
Markdown
23 lines
No EOL
718 B
Markdown
```mermaid
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sequenceDiagram
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participant User
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participant PaymentGateway
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participant Database
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User->>PaymentGateway: Initiate payment
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PaymentGateway->>User: Payment status (success)
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User->>Database: Save transaction
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Database-->>User: Transaction saved
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%% External failure scenario
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User->>PaymentGateway: Initiate payment
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PaymentGateway-->>User: Payment status (failure)
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User->>Database: Log failure reason
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%% Database failure scenario
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User->>PaymentGateway: Initiate payment
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PaymentGateway->>User: Payment status (success)
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User->>Database: Save transaction
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Database-->>User: Transaction failed (DB error)
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Note right of User: Rollback transaction
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``` |