how to set jsonp callback in retrieving restful web service data via jquery

Question

I have asked a question regarding invalid label on firebug which happens when I try to retrieve data from my restful web service. Most of the answers I received was about setting a callback function. but I can't seem to get the right juice from it. can you show me an exact code on how to do it? or atleast correct the code here:

        type: "GET",
        cache: false, 
        contentType: "application/json; charset=utf-8",
        dataType: "jsonp",
        processdata:true,
        jsonp: false, jsonpCallback: "success",
        url: 'http://localhost:8732/Service1/data/10',

        success : function success(data) {
            jsonResponse = eval("(" + data + ")");
            alert(jsonResponse)
        },
        error : function(req,status, ex) {

            alert(ex);
        }

Thanks,

Answer 1

Wow, you've got a lot of unnecessary stuff there. Try this:

$.ajax({
    url: 'http://localhost:8732/Service1/data/10',
    dataType: 'jsonp',
    error: function(req, status, ex) {
        // your code here
    },
    success: function(data) {
        //your code here
        // Please note: you don't need to 'eval' the json response.
        // The 'data' variable will be loaded with the object that the json string represents.
        // By the way, don't use 'eval', ever.
    }
});

jQuery will take care of the callback on the url. See here: http://api.jquery.com/jQuery.ajax/

UPDATE Why jsonp? If you're getting this from localhost, why not just json? As discussed in the comments below, your server currently is not capable of a jsonp response, but it can do json.