How to get JSON Parameter from xsjs

Hi All,

I'm trying to post my JSON data to xsjs. I'm using Postman. I didn't find to way to get the JSON parameter which I send from POSTMAN.

At the begenning I defined my xsjs like below.

jsonparameter is working on rest of the code.

I want to try to get JSON from POSTMAN I think it should be something like

$.response.contentType = "application/json";

var json = $.request.parameters.get("");

varjsonparameter = JSON.parse(json);

But this is not working. json is undefined.

My question is how i can get the JSON data to my xsjs from POSTMAN.