fix: improve error handling, database session management, and config validation #423
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…validation - Add missing SQLAlchemy exception handler registration in FastAPI app - Fix critical bug in database settings class initialization - Improve config validation with proper defaults and validators - Use correct HTTP status codes (404 for not found, 422 for parsing errors) - Enhance exception logging while preventing information leakage - Add automatic secure session key generation if not provided - Improve overall application robustness and security These changes address several critical issues: 1. Missing database exception handling that could cause unhandled errors 2. Improper HTTP status codes that violate REST API standards 3. Configuration validation gaps that could cause runtime failures 4. Security improvements for session management 5. Better error logging for debugging while maintaining security
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Caution Review failedAn error occurred during the review process. Please try again later. WalkthroughThe changes introduce improved error handling and configuration validation across the backend application. Exception handling in API endpoints and the FastAPI app is refined, including custom handling for SQLAlchemy errors and more granular HTTP status codes. The configuration system now enforces secure defaults and validates critical environment variables. Logging for unhandled exceptions is enhanced for better traceability. Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant FastAPI App
participant API Endpoint
participant ExceptionHandler
Client->>FastAPI App: Sends API request
FastAPI App->>API Endpoint: Routes request
API Endpoint-->>ExceptionHandler: Raises Exception (e.g., SQLAlchemyError, NotFound, ParsingError)
ExceptionHandler->>FastAPI App: Handles exception, logs details, returns appropriate HTTP response
FastAPI App-->>Client: Returns error response with status code and message
Estimated code review effort2 (~18 minutes) Poem
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Key Improvements Made:
• Added SQLAlchemy exception handler registration in FastAPI.
• Fixed initialization bug in _DatabaseSettings.
• Changed ResumeNotFoundError and JobNotFoundError to 404.
• Changed parsing error status to 422 for REST compliance.
• Added validators for database URLs and session keys.
• Implemented secure session key generation.
• Improved unhandled exception handler to log details without leaking information.
• Adjusted logging levels based on error severity.
• Resolved undefined variable access in database configuration.
• Improved session management for better resource cleanup.
Impact of Changes:
• Security Enhancements: Secure session management, improved error handling.
• API Compliance: Corrected HTTP status codes with REST best practices.
• Reliability Boost: Fixed critical initialization issues.
• Developer Experience: Improved error messages and logging.
• Production Readiness: Strengthened configuration validation and application robustness.
Summary by CodeRabbit
Bug Fixes
New Features