1 files changed, 46 insertions, 0 deletions
diff --git a/app/graphql/resolvers/labels_resolver.rb b/app/graphql/resolvers/labels_resolver.rb
new file mode 100644
index 00000000000..1b523b8a240
--- /dev/null
+++ b/app/graphql/resolvers/labels_resolver.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+module Resolvers
+  class LabelsResolver < BaseResolver
+    include Gitlab::Graphql::Authorize::AuthorizeResource
+
+    authorize :read_label
+
+    type Types::LabelType.connection_type, null: true
+
+    argument :search_term, GraphQL::STRING_TYPE,
+             required: false,
+             description: 'A search term to find labels with.'
+
+    argument :include_ancestor_groups, GraphQL::BOOLEAN_TYPE,
+             required: false,
+             description: 'Include labels from ancestor groups.',
+             default_value: false
+
+    def resolve(**args)
+      return Label.none if parent.nil?
+
+      authorize!(parent)
+
+      # LabelsFinder uses `search` param, so we transform `search_term` into `search`
+      args[:search] = args.delete(:search_term)
+      LabelsFinder.new(current_user, parent_param.merge(args)).execute
+    end
+
+    private
+
+    def parent
+      object.respond_to?(:sync) ? object.sync : object
+    end
+
+    def parent_param
+      key = case parent
+            when Group then :group
+            when Project then :project
+            else raise "Unexpected parent type: #{parent.class}"
+            end
+
+      { "#{key}": parent }
+    end
+  end
+end