advance grid search

Hi,

As you suggested, this is what I wrote:

var params = {
url: "http://localhost:8020/vecv_services/api/shop",
proxyPort: undefined /* INTEGER */,
password: "Mestech@6" /* STRING */,
domain: undefined /* STRING */,
contentType: "application/json;charset=UTF-8" /* STRING */,
username: "mestech" /* STRING */
};

// result: JSON
var json = Resources["ContentLoaderFunctions"].GetText(params);

var obj = JSON.parse(json);

var paramsDS = {
infoTableName : "InfoTable",
dataShapeName : "Shop_DS_Harsha"
};

var infoTable = Resources["InfoTableFunctions"].CreateInfoTableFromDataShape(paramsDS);
var dt = obj.data

//for (var elem in json)
for (var i=0; i<dt.length; i++)
{
var row = dt[i];
var shopCodeVal = row.shopCode;
var shopNameVal = row.shopName;
var descriptionVal = row.description;
var plantNameVal = row.plantName;
var shopIdVal = row.shopId;

infoTable.AddRow({shopCode:shopCodeVal,shopName:shopNameVal,description:descriptionVal,plantName:plantNameVal,
shopId:shopIdVal});
}

//var result = infoTable;

var params = {
t: infoTable /* INFOTABLE */,
query: query /* QUERY */
};
// result: INFOTABLE
var result = Resources["InfoTableFunctions"].Query(params);

and took query parameter in the input field and base type as infotable

but still its not working 

can you please help me??