Does Nanoflow->Microflow->Mapping happen clientside only?

In an 8.9.0 native application, I have created a javascript REST call and the response is mapped to an object by using the option of a nanoflow to call a microflow that uses an import mapping and returns the non-persistent object. Question is: Does this happen server-side because a microflow is involved or does it happen completely clientside?
1 answers

Integration activities are not available in nanoflows. Therefore the call to rest service happens on the device inside the JavaScript action and the import-mapping is performed on the server in the microflow.