In our current (sharepoint 2013) en future (sharepoint 2019) environment we want to use rest services based on json. Currently other services in our environment must translate the API response to sharepoint into XML because in Nintex can only parse the XML body using the Query XML action.

I find this strange because json is very common for rest. I know there is a string manipulation workaround using expressions as

(?<=(EMail\":\"))[^"]+

I you have multiple fields than it will become quite messy to work like this. I would like a equivalent for Query XML as "Query JSON"