API_DOQUERY Javascript is not working

I'm trying to get the rid of another table to populate into a field. I tried this with DoQueryCount to get numMatches and as it should returns "1" and puts it in fid 74. But, when i try the DoQuery below I get nothing. 
What am I missing?




var dbid="myDBID";
var apptoken = "oooolooktokens";
var pro = kRid;$.ajaxSetup({async: false}); 
var ntit = $("#_fid_9").val();
var nupc = $("#_fid_75").val();

$.ajaxSetup({data: {apptoken: apptoken}});

var promise = $.get(dbid,{
  act: "API_DoQuery",
query: "{'35'.CT."+ntit+"}AND{'34'.CT."+nupc+"}",
  clist: "3"
});

$.when(promise).then(function(xml){
    console.dirxml(xml);
  var recordid = $("ItemID", xml).text();
 console.log(recordid);
$("#_fid_74").val(recordid);
});

More than likely this is the statement that needs to be corrected from:

var recordid = $("ItemID", xml).text();

to this:

var recordid = $("itemid", xml).text();

The XML tag is derived from the field label by lower-casing all letters and substituting an underscore for non-alphabetic characters. You should expand the xml variable in the console to see the full XML response:

console.dirxml(xml);

For what is is worth, I would make further improvements to your code such as the following:

(function() {
  var dbid = "myDBID";
  var apptoken = "oooolooktokens";
  var pro = kRid;
  var ntit = _fid_9").value;
  var nupc = _fid_75.value;
  $.ajaxSetup({data: {apptoken: apptoken}});
  var promise = $.get(dbid, {
    act: "API_DoQuery",
    query: '{35.CT.${ntit}}AND{34.CT.${nupc}}',
    clist: "3"
  }).then(function(xml) {
    console.dirxml(xml);
    var recordid = $("itemid", xml).text();
    console.log(recordid);
    _fid_74.value = recordid;
  });
})();

Also, you probably need to add decoding logic to determine what type of age you are on as I think you code is only going to work for add and edit pages.