2 files changed, 37 insertions, 5 deletions
diff --git a/lib/gitlab/pagination/cursor_based_keyset.rb b/lib/gitlab/pagination/cursor_based_keyset.rb
new file mode 100644
index 00000000000..f19cdf06d9a
--- /dev/null
+++ b/lib/gitlab/pagination/cursor_based_keyset.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Pagination
+    module CursorBasedKeyset
+      SUPPORTED_ORDERING = {
+        Group => { name: :asc }
+      }.freeze
+
+      def self.available_for_type?(relation)
+        SUPPORTED_ORDERING.key?(relation.klass)
+      end
+
+      def self.available?(cursor_based_request_context, relation)
+        available_for_type?(relation) &&
+        order_satisfied?(relation, cursor_based_request_context)
+      end
+
+      def self.order_satisfied?(relation, cursor_based_request_context)
+        order_by_from_request = cursor_based_request_context.order_by
+
+        SUPPORTED_ORDERING[relation.klass] == order_by_from_request
+      end
+      private_class_method :order_satisfied?
+    end
+  end
+end
diff --git a/lib/gitlab/pagination/keyset/cursor_based_request_context.rb b/lib/gitlab/pagination/keyset/cursor_based_request_context.rb
index d9c118ceef5..18390f5b59d 100644
--- a/lib/gitlab/pagination/keyset/cursor_based_request_context.rb
+++ b/lib/gitlab/pagination/keyset/cursor_based_request_context.rb
@@ -4,11 +4,12 @@ module Gitlab
   module Pagination
     module Keyset
       class CursorBasedRequestContext
-        attr_reader :request
-        delegate :params, :header, to: :request
+        DEFAULT_SORT_DIRECTION = :desc
+        attr_reader :request_context
+        delegate :params, to: :request_context
 
-        def initialize(request)
-          @request = request
+        def initialize(request_context)
+          @request_context = request_context
         end
 
         def per_page
@@ -21,9 +22,13 @@ module Gitlab
 
         def apply_headers(cursor_for_next_page)
           Gitlab::Pagination::Keyset::HeaderBuilder
-            .new(self)
+            .new(request_context)
             .add_next_page_header({ cursor: cursor_for_next_page })
         end
+
+        def order_by
+          { params[:order_by].to_sym => params[:sort]&.to_sym || DEFAULT_SORT_DIRECTION }
+        end
       end
     end
   end