How to use excel services REST api in Sharepoint Hosted App

Question

I need to call excel service rest api as follows on the 'Summary' library in hostweb

"https://<sponline>/sites/dev/_vti_bin/ExcelRest.aspx/Summary/Group%20Summary%202014.xlsx/Model/Tables('Revenue_Jan')?$format=atom"

The call should be executed from a SharePoint hosted app using JavaScript. I'm getting 'access denied' error when using below code in SharePoint hosted app.

$.ajax({
        type: "GET",
        url: hostweburl + "/_vti_bin/ExcelREST.aspx/Summary/Group%20Summary%202014.xlsx/model/Tables?$'format=html'",
        success: function (data) {
            alert("success");
        },
        error: function (xhr, msg, e) {
            alert("error");
        }
    });

If someone can point out a JavaScript code sample on how to use excel service from SharePoint hosted app it will be very helpful.

Answer 1

Couldn't continue investigating how to do this on SharePoint app. I finally used a normal SharePoint webpage with following JavaScript.

$.ajax({
        url: "../_vti_bin/ExcelRest.aspx/GroupStatistics/Group%20Summary%202014.xlsx/model/Tables('" + tableName + "')?$format=json",
        method: "GET",
        headers: { "Accept": "application/json; odata=verbose" },
        dataType: "json",
        success: function (data) {
            //work with data
        },
        error: function (data) {
           // error
        }
    });