update go.mod and imports

internal/validators/helper.go

@@ -1,5 +1,25 @@
 package validators
 
+import (
+	"errors"
+
+	"github.com/go-playground/validator/v10"
+)
+
+func ValidateRequest(req interface{}) error {
+	validate := getDecortValidator()
+	return validate.Struct(req)
+}
+
+func ValidationError(fe validator.FieldError) error {
+	return errors.New(errorMessage(fe))
+}
+
+//nolint:errorlint
+func GetErrors(err error) validator.ValidationErrors {
+	return err.(validator.ValidationErrors)
+}
+
 func StringInSlice(str string, target []string) bool {
 	for _, v := range target {
 		if v == str {