Documentation: utils / errorHandler
Purpose:
Centralized application error logging and rendering.
Lifecycle Role:
Final Express error handler.
Dependencies:
Upstream:
- error rendering utils
- constants
Downstream:
None
Data Flow:
Inputs:
Error object, request context.
Outputs:
Rendered error page or redirect.
Side Effects:
Logging.
Performance and Scalability:
Bottlenecks:
- Logging failure
Concurrency:
None
Security and Stability:
Validation:
Renders user-safe errors.
Vulnerabilities:
- Stack trace exposure
Architecture Assessment:
Coupling:
High with error path.
Abstraction:
Final middleware.
Recommendations:
- Escape rendered messages
- Monitor error frequency