Add nuget metadata type to Package GraphQl type

app/graphql/types/packages/metadata_type.rb

@@ -6,7 +6,7 @@ module Types
       graphql_name 'PackageMetadata'
       description 'Represents metadata associated with a Package'
 
-      possible_types ::Types::Packages::Composer::MetadatumType, ::Types::Packages::Conan::MetadatumType, ::Types::Packages::Maven::MetadatumType
+      possible_types ::Types::Packages::Composer::MetadatumType, ::Types::Packages::Conan::MetadatumType, ::Types::Packages::Maven::MetadatumType, ::Types::Packages::Nuget::MetadatumType
 
       def self.resolve_type(object, context)
         case object
@@ -16,6 +16,8 @@ module Types
           ::Types::Packages::Conan::MetadatumType
         when ::Packages::Maven::Metadatum
           ::Types::Packages::Maven::MetadatumType
+        when ::Packages::Nuget::Metadatum
+          ::Types::Packages::Nuget::MetadatumType
         else
           # NOTE: This method must be kept in sync with `PackageWithoutVersionsType#metadata`,
           # which must never produce data that this discriminator cannot handle.

app/graphql/types/packages/nuget/metadatum_type.rb

+# frozen_string_literal: true
+
+module Types
+  module Packages
+    module Nuget
+      class MetadatumType < BaseObject
+        graphql_name 'NugetMetadata'
+        description 'Nuget metadata'
+
+        authorize :read_package
+
+        field :id, ::Types::GlobalIDType[::Packages::Nuget::Metadatum], null: false, description: 'ID of the metadatum.'
+        field :license_url, GraphQL::STRING_TYPE, null: false, description: 'License URL of the Nuget package.'
+        field :project_url, GraphQL::STRING_TYPE, null: false, description: 'Project URL of the Nuget package.'
+        field :icon_url, GraphQL::STRING_TYPE, null: false, description: 'Icon URL of the Nuget package.'
+      end
+    end
+  end
+end

app/graphql/types/packages/package_type.rb

@@ -47,6 +47,8 @@ module Types
           object.conan_metadatum
         when 'maven'
           object.maven_metadatum
+        when 'nuget'
+          object.nuget_metadatum
         else
           nil
         end

app/policies/packages/nuget/metadatum_policy.rb

+# frozen_string_literal: true
+module Packages
+  module Nuget
+    class MetadatumPolicy < BasePolicy
+      delegate { @subject.package }
+    end
+  end
+end

changelogs/unreleased/285467-package-registry-graphql-api-5.yml

+---
+title: Add nuget metadata type to Package GraphQl type
+merge_request: 61695
+author:
+type: added

doc/api/graphql/reference/index.md

@@ -10452,6 +10452,19 @@ four standard [pagination arguments](#connection-pagination-arguments):
 | <a id="notepermissionsrepositionnote"></a>`repositionNote` | [`Boolean!`](#boolean) | Indicates the user can perform `reposition_note` on this resource. |
 | <a id="notepermissionsresolvenote"></a>`resolveNote` | [`Boolean!`](#boolean) | Indicates the user can perform `resolve_note` on this resource. |
 
+### `NugetMetadata`
+
+Nuget metadata.
+
+#### Fields
+
+| Name | Type | Description |
+| ---- | ---- | ----------- |
+| <a id="nugetmetadataiconurl"></a>`iconUrl` | [`String!`](#string) | Icon URL of the Nuget package. |
+| <a id="nugetmetadataid"></a>`id` | [`PackagesNugetMetadatumID!`](#packagesnugetmetadatumid) | ID of the metadatum. |
+| <a id="nugetmetadatalicenseurl"></a>`licenseUrl` | [`String!`](#string) | License URL of the Nuget package. |
+| <a id="nugetmetadataprojecturl"></a>`projectUrl` | [`String!`](#string) | Project URL of the Nuget package. |
+
 ### `OncallParticipantType`
 
 The rotation participant and color palette.
@@ -15013,6 +15026,12 @@ A `PackagesMavenMetadatumID` is a global ID. It is encoded as a string.
 
 An example `PackagesMavenMetadatumID` is: `"gid://gitlab/Packages::Maven::Metadatum/1"`.
 
+### `PackagesNugetMetadatumID`
+
+A `PackagesNugetMetadatumID` is a global ID. It is encoded as a string.
+
+An example `PackagesNugetMetadatumID` is: `"gid://gitlab/Packages::Nuget::Metadatum/1"`.
+
 ### `PackagesPackageFileID`
 
 A `PackagesPackageFileID` is a global ID. It is encoded as a string.
@@ -15149,6 +15168,7 @@ One of:
 - [`ComposerMetadata`](#composermetadata)
 - [`ConanMetadata`](#conanmetadata)
 - [`MavenMetadata`](#mavenmetadata)
+- [`NugetMetadata`](#nugetmetadata)
 
 #### `VulnerabilityDetail`
 

spec/fixtures/api/schemas/graphql/packages/package_details.json

@@ -82,6 +82,7 @@
         { "$ref": "./package_composer_metadata.json" },
         { "$ref": "./package_conan_metadata.json" },
         { "$ref": "./package_maven_metadata.json" },
+        { "$ref": "./package_nuget_metadata.json" },
         { "type": "null" }
       ]
     },

spec/fixtures/api/schemas/graphql/packages/package_nuget_metadata.json

+{
+  "type": "object",
+  "additionalProperties": false,
+  "required": ["id", "licenseUrl", "projectUrl", "iconUrl"],
+  "properties": {
+    "id": {
+      "type": "string"
+    },
+    "licenseUrl": {
+      "type": "string"
+    },
+    "projectUrl": {
+      "type": "string"
+    },
+    "iconUrl": {
+      "type": "string"
+    }
+  }
+}

spec/graphql/types/packages/maven/metadatum_type_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe GitlabSchema.types['MavenMetadata'] do
+  it 'includes maven metadatum fields' do
+    expected_fields = %w[
+      id created_at updated_at path app_group app_version app_name
+    ]
+
+    expect(described_class).to include_graphql_fields(*expected_fields)
+  end
+end

spec/graphql/types/packages/nuget/metadatum_type_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe GitlabSchema.types['NugetMetadata'] do
+  it 'includes nuget metadatum fields' do
+    expected_fields = %w[
+      id license_url project_url icon_url
+    ]
+
+    expect(described_class).to include_graphql_fields(*expected_fields)
+  end
+end

spec/requests/api/graphql/packages/nuget_spec.rb

+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe 'nuget package details' do
+  include GraphqlHelpers
+
+  let_it_be(:project) { create(:project) }
+  let_it_be(:nuget_package) { create(:nuget_package, :with_metadatum, project: project) }
+
+  let(:package_global_id) { global_id_of(nuget_package) }
+  let(:metadata) { query_graphql_fragment('NugetMetadata') }
+  let(:first_file) { nuget_package.package_files.find { |f| global_id_of(f) == first_file_response['id'] } }
+
+  let(:depth) { 3 }
+  let(:excluded) { %w[metadata apiFuzzingCiConfiguration pipeline packageFiles] }
+  let(:package_files) { all_graphql_fields_for('PackageFile') }
+
+  let(:user) { project.owner }
+  let(:package_details) { graphql_data_at(:package) }
+  let(:metadata_response) { graphql_data_at(:package, :metadata) }
+  let(:package_files_response) { graphql_data_at(:package, :package_files, :nodes) }
+  let(:first_file_response) { graphql_data_at(:package, :package_files, :nodes, 0)}
+
+  let(:query) do
+    graphql_query_for(:package, { id: package_global_id }, <<~FIELDS)
+    #{all_graphql_fields_for('PackageDetailsType', max_depth: depth, excluded: excluded)}
+    metadata {
+      #{metadata}
+    }
+    packageFiles {
+      nodes {
+        #{package_files}
+      }
+    }
+    FIELDS
+  end
+
+  subject { post_graphql(query, current_user: user) }
+
+  before do
+    subject
+  end
+
+  it_behaves_like 'a working graphql query' do
+    it 'matches the JSON schema' do
+      expect(package_details).to match_schema('graphql/packages/package_details')
+    end
+  end
+
+  it 'has the correct metadata' do
+    expect(metadata_response).to include(
+      'id' => global_id_of(nuget_package.nuget_metadatum),
+      'licenseUrl' => nuget_package.nuget_metadatum.license_url,
+      'projectUrl' => nuget_package.nuget_metadatum.project_url,
+      'iconUrl' => nuget_package.nuget_metadatum.icon_url
+    )
+  end
+
+  it 'has the right amount of files' do
+    expect(package_files_response.length).to be(nuget_package.package_files.length)
+  end
+
+  it 'has the basic package files data' do
+    expect(first_file_response).to include(
+      'id' => global_id_of(first_file),
+      'fileName' => first_file.file_name,
+      'size' => first_file.size.to_s,
+      'downloadPath' => first_file.download_path,
+      'fileSha1' => first_file.file_sha1,
+      'fileMd5' => first_file.file_md5,
+      'fileSha256' => first_file.file_sha256
+    )
+  end
+end