1 files changed, 52 insertions, 0 deletions
diff --git a/lib/api/resource_label_events.rb b/lib/api/resource_label_events.rb
new file mode 100644
index 00000000000..5ac3adeb990
--- /dev/null
+++ b/lib/api/resource_label_events.rb
@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+module API
+  class ResourceLabelEvents < Grape::API
+    include PaginationParams
+    helpers ::API::Helpers::NotesHelpers
+
+    before { authenticate! }
+
+    EVENTABLE_TYPES = [Issue, MergeRequest].freeze
+
+    EVENTABLE_TYPES.each do |eventable_type|
+      parent_type = eventable_type.parent_class.to_s.underscore
+      eventables_str = eventable_type.to_s.underscore.pluralize
+
+      params do
+        requires :id, type: String, desc: "The ID of a #{parent_type}"
+      end
+      resource parent_type.pluralize.to_sym, requirements: API::PROJECT_ENDPOINT_REQUIREMENTS do
+        desc "Get a list of #{eventable_type.to_s.downcase} resource label events" do
+          success Entities::ResourceLabelEvent
+          detail 'This feature was introduced in 11.3'
+        end
+        params do
+          requires :eventable_id, types: [Integer, String], desc: 'The ID of the eventable'
+          use :pagination
+        end
+        get ":id/#{eventables_str}/:eventable_id/resource_label_events" do
+          eventable = find_noteable(parent_type, eventables_str, params[:eventable_id])
+          events = eventable.resource_label_events.includes(:label, :user)
+
+          present paginate(events), with: Entities::ResourceLabelEvent
+        end
+
+        desc "Get a single #{eventable_type.to_s.downcase} resource label event" do
+          success Entities::ResourceLabelEvent
+          detail 'This feature was introduced in 11.3'
+        end
+        params do
+          requires :event_id, type: String, desc: 'The ID of a resource label event'
+          requires :eventable_id, types: [Integer, String], desc: 'The ID of the eventable'
+        end
+        get ":id/#{eventables_str}/:eventable_id/resource_label_events/:event_id" do
+          eventable = find_noteable(parent_type, eventables_str, params[:eventable_id])
+          event = eventable.resource_label_events.find(params[:event_id])
+
+          present event, with: Entities::ResourceLabelEvent
+        end
+      end
+    end
+  end
+end