1 files changed, 30 insertions, 0 deletions
diff --git a/app/graphql/types/query_complexity_type.rb b/app/graphql/types/query_complexity_type.rb
new file mode 100644
index 00000000000..82809fac22f
--- /dev/null
+++ b/app/graphql/types/query_complexity_type.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+module Types
+  # rubocop: disable Graphql/AuthorizeTypes
+  class QueryComplexityType < ::Types::BaseObject
+    ANALYZER = GraphQL::Analysis::QueryComplexity.new { |_query, complexity| complexity }
+
+    graphql_name 'QueryComplexity'
+
+    alias_method :query, :object
+
+    field :limit, GraphQL::INT_TYPE,
+          null: true,
+          method: :max_complexity,
+          see: {
+            'GitLab documentation on this limit' =>
+              'https://docs.gitlab.com/ee/api/graphql/index.html#max-query-complexity'
+          },
+          description: 'GraphQL query complexity limit.'
+
+    field :score, GraphQL::INT_TYPE,
+          null: true,
+          description: 'GraphQL query complexity score.'
+
+    def score
+      ::GraphQL::Analysis.analyze_query(query, [ANALYZER]).first
+    end
+  end
+  # rubocop: enable Graphql/AuthorizeTypes
+end