add pagination data concern

app/controllers/concerns/pagination_data.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+module PaginationData
+  extend ActiveSupport::Concern
+
+  def pagination_data(objects, default_page: nil, default_per_page: nil)
+    {
+      results: objects.total_count,
+      pages: objects.num_pages,
+      page: (params[:page] || default_page).to_i,
+      per_page: (params[:per_page] || default_per_page).to_i
+    }
+  end
+
+  def pagination_required?
+    params[:page].present? || params[:per_page].present?
+  end
+end