REST / AJAX calls from within a Jaggery script

<%


var mySecureToken = FnMakeRequestCall("https://10.299.99.99:8245/token","POST","Basic RlN4S2RrZEpNN3VaYWhHN0NFcEtlaTZEa3RzYTpXbmUxd29seHp2UTNSQ2RZbXhUUTJ2WkJTd0Fh","application/x-www-form-urlencoded; charset=UTF-8",""application/json; charset=utf-8","grant_type=password&username=pcsadmin&password=pcsadmin");





 print(mySecureToken);


function FnMakeRequestCall(URL, METHOD, BASICAUTH, CONTENTTYPE, ACCEPTTYPE, INPUTDATA){

 if(BASICAUTH){

  //var VarBasicAuthCode = util.FnCreateBasicAuthentication(VARSKYSPARKUSERNAME,VARSKYSPARKPASSWORD);

  var VarBasicAuthCode = session.get('authToken');

 }

 xhr = new XMLHttpRequest();

 xhr.open(METHOD, URL);

 if(BASICAUTH){

  xhr.setRequestHeader("Authorization" , VarBasicAuthCode);

 }

 xhr.setRequestHeader("Content-Type", CONTENTTYPE);

 xhr.setRequestHeader("Accept", ACCEPTTYPE);

 xhr.send(INPUTDATA);

 var VarResponse = xhr.responseText;

 return VarResponse;

}




%>