app/controllers/spree/api/v1/classifications_controller.rb in spree_api-4.2.7 vs app/controllers/spree/api/v1/classifications_controller.rb in spree_api-4.3.0.rc1

@@ -7,12 +7,13 @@
           authorize! :update, Taxon
           classification = Spree::Classification.find_by(
             product_id: params[:product_id],
             taxon_id: params[:taxon_id]
           )
-          # Because position we get back is 0-indexed.
-          # acts_as_list is 1-indexed.
-          classification.insert_at(params[:position].to_i + 1)
+          Spree::Dependencies.classification_reposition_service.constantize.call(
+            classification: classification,
+            position: params[:position]
+          )
           head :ok
         end
       end
     end
   end