error-model-validation-architect

Standardize API error responses in a Kotlin Spring application by defining a consistent error taxonomy and using controller advice to map domain and framework exceptions to durable, machine-readable payloads with traceable correlation IDs.

Mapping domain exceptions to HTTP status codes in Spring requires a structured error taxonomy that categorizes failures like malformed requests, conflicts, and downstream errors into predictable, standardized status mappings across all endpoints.

Controller advice prevents leakage of internal details by intercepting framework and domain exceptions, ensuring safe exposure limits and returning standardized, stable error payloads instead of raw stack traces to clients.

Yes, this API error model applies to public APIs, internal services, and partner integrations, providing predictable error behavior and stable semantics across various integration contexts.

A structured error taxonomy for REST endpoint validation categorizes common failures like malformed requests, not found, and authentication errors, providing machine-readable semantics and preventing unpredictable error behavior.