error-handling-standardizer

Standardize error handling by applying custom error classes like AppError and centralized middleware to enforce a consistent taxonomy and uniform response shapes across Node TypeScript backends. This ensures structured logging and safe client messages.

Safe error messages are enforced through centralized middleware that returns structured responses with trace identifiers. This approach ensures clients receive actionable feedback while internal application details remain hidden for security.

You can catch async errors using an async route wrapper helper that reduces boilerplate. This wrapper passes caught errors to a centralized error handler, applying the custom error taxonomy and structured logging automatically.

Yes, the approach works by implementing a custom error taxonomy including ValidationError, NotFoundError, UnauthorizedError, and ForbiddenError. The centralized middleware recognizes these classes to generate uniform response shapes and appropriate logging.

Trace identifiers are added to structured logging through the centralized error handler. This handler captures contextual data alongside the custom error classes, simplifying debugging, monitoring, and error-rate analysis.