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Review Summary by QodoRefactor Lambda handler into modular architecture with service layer extraction
WalkthroughsDescription• Refactored Lambda handler into modular LambdaManager class - Separated concerns: initialization, validation, data fetching, cleanup - Improved error handling with custom exception classes • Extracted custom exceptions to dedicated models/exceptions.py module • Created NasaService for NASA API interactions • Created MigrationRepository for database migration queries • Improved response formatting with LambdaResponseFormatter utility class • Added unit tests for Lambda handler and manager initialization • Updated documentation with testing instructions and code review guidelines Diagramflowchart LR
A["lambda_handler"] -->|creates| B["LambdaManager"]
B -->|uses| C["SecretsManagerWrapper"]
B -->|uses| D["NasaService"]
B -->|uses| E["MigrationRepository"]
D -->|calls| F["ExternalApiService"]
E -->|queries| G["MysqlDriver"]
B -->|formats response| H["LambdaResponseFormatter"]
I["Custom Exceptions"] -->|imported by| B
File Changes1. lambda_function.py
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Code Review by Qodo
1. Stacktrace leaked to clients
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CI Feedback 🧐A test triggered by this PR failed. Here is an AI-generated analysis of the failure:
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| if settings.lambda_log_level == "DEBUG": | ||
| error_body["error"]["stacktrace"] = traceback.format_exc() | ||
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1. Stacktrace leaked to clients 🐞 Bug ⛨ Security
Error responses include a stacktrace based on settings.lambda_log_level, which defaults to DEBUG; _configure_logging_from_secrets() updates only the logger, not settings, so stacktraces can be exposed even when secrets set INFO. This is an information disclosure risk and also makes stacktrace exposure hard to control at runtime.
Agent Prompt
### Issue description
`LambdaResponseFormatter.error()` conditionally injects a stacktrace into the HTTP response using `settings.lambda_log_level == "DEBUG"`. Because `Settings.lambda_log_level` defaults to DEBUG and `_configure_logging_from_secrets()` only updates the logger (not `settings`), stacktraces can leak to clients even when Secrets Manager sets the runtime log level to INFO.
### Issue Context
This is both a security problem (information disclosure) and a runtime-control problem (response debug behavior does not follow secrets-driven logging configuration).
### Fix Focus Areas
- lambda_function.py[60-92]
- lambda_function.py[156-162]
- utils/config.py[12-23]
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