Function UnwrapTypedError

errs/predicates.go:30–38

UnwrapTypedError walks the wrap chain and returns the first error that embeds Problem (i.e. any typed error in this package). Returns the typed error itself (as error) so callers — notably JSON marshaling — see the concrete value's own struct tags rather than an opaque wrapper.

(err error)

// error itself (as error) so callers — notably JSON marshaling — see the
// concrete value's own struct tags rather than an opaque wrapper.
func UnwrapTypedError(err error) (error, bool) {
	var c problemCarrier
	if errors.As(err, &c) {
		if e, ok := c.(error); ok {
			return e, true
		}
	}
	return nil, false
}

// CategoryOf returns the error's Category for metrics/logging/dispatch routing.
// Falls back to CategoryInternal for non-typed errors.