Zoho Desk to Zoho Creator Intregration

Zoho Desk to Zoho Creator Intregration

I am trying to connect my zoho desk extension to creator. I able to pull data, from my creator application, but now I want to pass parameters for either specific record retrieval or post data to my creator application.

         var reqObj= {
             url : https://creator.zoho.com/api/<format>/<applicationLinkName>/view/<viewLinkName>',
             headers : { 'Content-Type' : 'application/json' },
             type : 'GET',
             data : {'test':"key"},
             postBody : {},
             connectionLinkName: "testconnection12"
         };
         ZOHODESK.request( reqObj ).then(function(response){
             console.log(response);
         }).catch(function(err){
             console.log(err);
         })

My questions is how can I add parameters to the Creator REST Calls. Are they supposed to go in data property or the postBody property?

Any help would be greatly apperciated