Provide required data for board labels

app/assets/javascripts/boards/index.js

@@ -87,6 +87,9 @@ export default () => {
       groupId: Number($boardApp.dataset.groupId),
       rootPath: $boardApp.dataset.rootPath,
       canUpdate: $boardApp.dataset.canUpdate,
+      labelsFetchPath: $boardApp.dataset.labelsFetchPath,
+      labelsManagePath: $boardApp.dataset.labelsManagePath,
+      labelsFilterBasePath: $boardApp.dataset.labelsFilterBasePath,
     },
     store,
     apolloProvider,

app/helpers/boards_helper.rb

@@ -18,7 +18,10 @@ module BoardsHelper
       time_tracking_limit_to_hours: Gitlab::CurrentSettings.time_tracking_limit_to_hours.to_s,
       recent_boards_endpoint: recent_boards_path,
       parent: current_board_parent.model_name.param_key,
-      group_id: @group&.id
+      group_id: @group&.id,
+      labels_filter_base_path: build_issue_link_base,
+      labels_fetch_path: labels_fetch_path,
+      labels_manage_path: labels_manage_path
     }
   end
 
@@ -38,6 +41,22 @@ module BoardsHelper
     end
   end
 
+  def labels_fetch_path
+    if board.group_board?
+      group_labels_path(@group, format: :json, only_group_labels: true, include_ancestor_groups: true)
+    else
+      project_labels_path(@project, format: :json, include_ancestor_groups: true)
+    end
+  end
+
+  def labels_manage_path
+    if board.group_board?
+      group_labels_path(@group)
+    else
+      project_labels_path(@project)
+    end
+  end
+
   def board_base_url
     if board.group_board?
       group_boards_url(@group)

spec/helpers/boards_helper_spec.rb

@@ -34,12 +34,13 @@ RSpec.describe BoardsHelper do
   end
 
   describe '#board_data' do
-    let(:user) { create(:user) }
-    let(:board) { create(:board, project: project) }
+    let_it_be(:user) { create(:user) }
+    let_it_be(:board) { create(:board, project: project) }
 
+    context 'project_board' do
       before do
-      assign(:board, board)
         assign(:project, project)
+        assign(:board, board)
 
         allow(helper).to receive(:current_user) { user }
         allow(helper).to receive(:can?).with(user, :create_non_backlog_issues, board).and_return(true)
@@ -57,6 +58,35 @@ RSpec.describe BoardsHelper do
       it 'returns can_update for user permissions on the board' do
         expect(helper.board_data[:can_update]).to eq('true')
       end
+
+      it 'returns required label endpoints' do
+        expect(helper.board_data[:labels_fetch_path]).to eq("/#{project.full_path}/-/labels.json?include_ancestor_groups=true")
+        expect(helper.board_data[:labels_manage_path]).to eq("/#{project.full_path}/-/labels")
+      end
+    end
+
+    context 'group board' do
+      let_it_be(:group) { create(:group, path: 'base') }
+      let_it_be(:board) { create(:board, group: group) }
+
+      before do
+        assign(:group, group)
+        assign(:board, board)
+
+        allow(helper).to receive(:current_user) { user }
+        allow(helper).to receive(:can?).with(user, :create_non_backlog_issues, board).and_return(true)
+        allow(helper).to receive(:can?).with(user, :admin_issue, board).and_return(true)
+      end
+
+      it 'returns correct path for base group' do
+        expect(helper.build_issue_link_base).to eq('/base/:project_path/issues')
+      end
+
+      it 'returns required label endpoints' do
+        expect(helper.board_data[:labels_fetch_path]).to eq("/groups/base/-/labels.json?include_ancestor_groups=true&only_group_labels=true")
+        expect(helper.board_data[:labels_manage_path]).to eq("/groups/base/-/labels")
+      end
+    end
   end
 
   describe '#current_board_json' do