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forge-bot 2026-07-12 07:38:15 +00:00
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```mermaid
sequenceDiagram
participant User
participant PaymentGateway
participant Database
opt Successful Transaction
User->>PaymentGateway: Initiate Payment
PaymentGateway-->>User: Payment Confirmation
User->>Database: Update Transaction Record
Database-->>User: Transaction Updated
User->>User: Payment Succeeded
end
opt External Failure
User->>PaymentGateway: Initiate Payment
PaymentGateway-->>User: Payment Error
User->>User: Payment Failed
end
opt DB Failure
User->>PaymentGateway: Initiate Payment
PaymentGateway-->>User: Payment Confirmation
User->>Database: Update Transaction Record
Database-->>User: DB Error
User->>PaymentGateway: Cancel Transaction
PaymentGateway-->>User: Transaction Canceled
end
%% Commit and Rollback%%
Note over User, PaymentGateway: Commit after successful transaction
Note over User, Database: Rollback on DB failure
```