init push

internal/shared/pkg/apperrorsx/apperror.go

@@ -0,0 +1,36 @@
+package apperrorsx
+
+import "wucher/internal/transport/http/jsonapi"
+
+// AppError is the canonical backend error contract used by translators and writers.
+type AppError struct {
+	Status    int
+	Code      string
+	ErrorCode string
+	Title     string
+	Message   string
+	Detail    any
+	Source    *jsonapi.ErrorSource
+	Cause     error
+}
+
+func (e *AppError) Error() string {
+	if e == nil {
+		return ""
+	}
+	if e.Message != "" {
+		return e.Message
+	}
+	if e.Cause != nil {
+		return e.Cause.Error()
+	}
+	return e.Code
+}
+
+func (e *AppError) WithCause(err error) *AppError {
+	if e == nil {
+		return nil
+	}
+	e.Cause = err
+	return e
+}