golang-samber-oops

Structured Go errors use a fluent builder to attach domain context, tags, and user identifiers as attributes. This keeps variables out of message strings, preserving low-cardinality output to maintain reliable APM aggregation and grouping.

Stack traces and panic recovery in Go goroutines are handled by converting panics into structured errors at goroutine boundaries. Using dedicated recovery functions captures call stacks while attaching domain context and error codes to the failure.

Public user-safe messages and technical developer details in Go are separated by setting a machine-readable error code alongside a distinct public message. This routes failures correctly while ensuring end users only see safe, sanitized text.

Go errors can be wrapped across HTTP handler, service, and repository boundaries using layered wrapping functions. This adds relevant context at each boundary, preserving end-to-end traceability from the initial failure point to the external response.

Go error logs break APM grouping when variable identifiers like user or tenant IDs are stuffed directly into message strings. Moving this variable data into structured attributes keeps the error message stable to preserve aggregation.

Structured error handling is needed when failures require consistent codes, stack traces, and domain context for on-call debugging. It replaces standard Go errors when you must preserve traceability across boundaries and ensure APM-friendly logging.