1 files changed, 15 insertions, 0 deletions
diff --git a/lib/api/validations/validators/absence.rb b/lib/api/validations/validators/absence.rb
new file mode 100644
index 00000000000..1f43f3ab126
--- /dev/null
+++ b/lib/api/validations/validators/absence.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module API
+  module Validations
+    module Validators
+      class Absence < Grape::Validations::Base
+        def validate_param!(attr_name, params)
+          return if params.respond_to?(:key?) && !params.key?(attr_name)
+
+          raise Grape::Exceptions::Validation, params: [@scope.full_name(attr_name)], message: message(:absence)
+        end
+      end
+    end
+  end
+end