1 files changed, 63 insertions, 0 deletions
diff --git a/lib/api/group_labels.rb b/lib/api/group_labels.rb
new file mode 100644
index 00000000000..0dbc5f45a68
--- /dev/null
+++ b/lib/api/group_labels.rb
@@ -0,0 +1,63 @@
+# frozen_string_literal: true
+
+module API
+  class GroupLabels < Grape::API
+    include PaginationParams
+    helpers ::API::Helpers::LabelHelpers
+
+    before { authenticate! }
+
+    params do
+      requires :id, type: String, desc: 'The ID of a group'
+    end
+    resource :groups, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
+      desc 'Get all labels of the group' do
+        detail 'This feature was added in GitLab 11.8'
+        success Entities::GroupLabel
+      end
+      params do
+        use :pagination
+      end
+      get ':id/labels' do
+        get_labels(user_group, Entities::GroupLabel)
+      end
+
+      desc 'Create a new label' do
+        detail 'This feature was added in GitLab 11.8'
+        success Entities::GroupLabel
+      end
+      params do
+        use :label_create_params
+      end
+      post ':id/labels' do
+        create_label(user_group, Entities::GroupLabel)
+      end
+
+      desc 'Update an existing label. At least one optional parameter is required.' do
+        detail 'This feature was added in GitLab 11.8'
+        success Entities::GroupLabel
+      end
+      params do
+        requires :name, type: String, desc: 'The name of the label to be updated'
+        optional :new_name, type: String, desc: 'The new name of the label'
+        optional :color, type: String, desc: "The new color of the label given in 6-digit hex notation with leading '#' sign (e.g. #FFAABB) or one of the allowed CSS color names"
+        optional :description, type: String, desc: 'The new description of label'
+        at_least_one_of :new_name, :color, :description
+      end
+      put ':id/labels' do
+        update_label(user_group, Entities::GroupLabel)
+      end
+
+      desc 'Delete an existing label' do
+        detail 'This feature was added in GitLab 11.8'
+        success Entities::GroupLabel
+      end
+      params do
+        requires :name, type: String, desc: 'The name of the label to be deleted'
+      end
+      delete ':id/labels' do
+        delete_label(user_group)
+      end
+    end
+  end
+end