Add tracking for additional NuGet events

ee/lib/api/nuget_packages.rb

@@ -102,6 +102,8 @@ module API
         get 'index', format: :json do
           authorize_read_package!(authorized_user_project)
 
+          track_event('nuget_service_index')
+
           present ::Packages::Nuget::ServiceIndexPresenter.new(authorized_user_project),
             with: EE::API::Entities::Nuget::ServiceIndex
         end
@@ -201,6 +203,8 @@ module API
 
             not_found!('Package') unless package_file
 
+            track_event('pull_package')
+
             # nuget and dotnet don't support 302 Moved status codes, supports_direct_download has to be set to false
             present_carrierwave_file!(package_file.file, supports_direct_download: false)
           end
@@ -231,6 +235,8 @@ module API
               .new(authorized_user_project, params[:q], search_options)
               .execute
 
+            track_event('search_package')
+
             present ::Packages::Nuget::SearchResultsPresenter.new(search),
               with: EE::API::Entities::Nuget::SearchResults
           end

ee/spec/support/shared_examples/requests/api/nuget_packages_shared_examples.rb

@@ -36,6 +36,8 @@ RSpec.shared_examples 'process nuget service index request' do |user_type, statu
 
     it_behaves_like 'returning response status', status
 
+    it_behaves_like 'a gitlab tracking event', described_class.name, 'nuget_service_index'
+
     it 'returns a valid json response' do
       subject
 
@@ -280,6 +282,8 @@ RSpec.shared_examples 'process nuget download content request' do |user_type, st
 
     it_behaves_like 'returning response status', status
 
+    it_behaves_like 'a gitlab tracking event', described_class.name, 'pull_package'
+
     it 'returns a valid package archive' do
       subject
 
@@ -328,6 +332,8 @@ RSpec.shared_examples 'process nuget search request' do |user_type, status, add_
 
     it_behaves_like 'returns a valid json search response', status, 4, [1, 5, 5, 1]
 
+    it_behaves_like 'a gitlab tracking event', described_class.name, 'search_package'
+
     context 'with skip set to 2' do
       let(:skip) { 2 }