webapp

internal/utils/error.go

@@ -0,0 +1,43 @@
+package utils
+
+import (
+	"net/http"
+
+	"github.com/swaggest/rest"
+)
+
+// CustomApplicationError is a marker interface that tells error middleware to serialize this error as-is, using Json schema.
+type CustomApplicationError interface {
+	rest.ErrWithHTTPStatus
+	CustomApplicationError()
+}
+
+type ApplicationError struct {
+	Message string `json:"message"`
+	code    int
+}
+
+var (
+	_ CustomApplicationError = ApplicationError{}
+)
+
+func NewApplicationError(message string, code int) ApplicationError {
+	return ApplicationError{
+		Message: message,
+		code:    code,
+	}
+}
+
+func (e ApplicationError) Error() string {
+	return e.Message
+}
+
+func (e ApplicationError) HTTPStatus() int {
+	return e.code
+}
+
+func (e ApplicationError) CustomApplicationError() {}
+
+func ValidationError(message string) ApplicationError {
+	return NewApplicationError(message, http.StatusUnprocessableEntity)
+}