error-model-validation-architect

Standardize API error responses in Spring by establishing a consistent error contract using ControllerAdvice to map exceptions. This ensures clients receive stable, machine-readable payloads without internal-detail leakage, covering malformed input, conflicts, and downstream failures.

Map domain exceptions to HTTP status codes in Kotlin by applying a centralized ControllerAdvice strategy. This separates transport and domain validation, assigning explicit status codes and a machine-readable payload with error codes and correlation IDs for reliable client semantics.

Design a machine-readable error payload for REST endpoints by defining a stable error taxonomy. Include explicit error codes, correlation IDs, and nested field paths to support API design-time contracts, observability, and safe error responses for public endpoints.

Yes, you can use ControllerAdvice to handle validation errors and downstream failures uniformly. It provides a centralized error handling strategy that maps malformed input, not found, authentication, and authorization errors to standardized HTTP status codes and a consistent contract.

Separate transport and domain validation in backend services when you need predictable API errors and stable client contracts. This separation ensures framework and domain exceptions map correctly to HTTP status codes without exposing sensitive internal application logic.

Add correlation IDs to API error handling in Spring by including them in a standardized, machine-readable error payload. This supports auditing and observability of errors across endpoints, ensuring clients and logs can trace specific failures through the system.