1 files changed, 42 insertions, 0 deletions
diff --git a/lib/api/concerns/packages/nuget/public_endpoints.rb b/lib/api/concerns/packages/nuget/public_endpoints.rb
new file mode 100644
index 00000000000..37b503212d9
--- /dev/null
+++ b/lib/api/concerns/packages/nuget/public_endpoints.rb
@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+# NuGet Package Manager Client API
+
+# These API endpoints are not consumed directly by users, so there is no documentation for the
+# individual endpoints. They are called by the NuGet package manager client when users run commands
+# like `nuget install` or `nuget push`. The usage of the GitLab NuGet registry is documented here:
+# https://docs.gitlab.com/ee/user/packages/nuget_repository/
+
+module API
+  module Concerns
+    module Packages
+      module Nuget
+        module PublicEndpoints
+          extend ActiveSupport::Concern
+
+          included do
+            # https://docs.microsoft.com/en-us/nuget/api/service-index
+            desc 'The NuGet Service Index' do
+              detail 'This feature was introduced in GitLab 12.6'
+              success code: 200, model: ::API::Entities::Nuget::ServiceIndex
+              failure [
+                { code: 404, message: 'Not Found' }
+              ]
+              tags %w[nuget_packages]
+            end
+            get 'index', format: :json, urgency: :default do
+              track_package_event(
+                'cli_metadata',
+                :nuget,
+                **snowplow_gitlab_standard_context_without_auth.merge(category: 'API::NugetPackages')
+              )
+
+              present ::Packages::Nuget::ServiceIndexPresenter.new(project_or_group_without_auth),
+                with: ::API::Entities::Nuget::ServiceIndex
+            end
+          end
+        end
+      end
+    end
+  end
+end