function GetData() {
$.ajax({
    type: "POST",
    url: "/api/MyData",
    headers: headers,
    contentType: "application/json",
    data: JSON.stringify(params),
    success: function (result) {
        $("#result").html('');
        $("#result").html(result.somedata);
    },
    error: function (error) {
        if (error.statusText == "Unauthorized") {
            Refresh();  //Refresh access token
            GetData();  //Call this function again to get data while authenticated
        }
    }
});
}