tags:

views:

142

answers:

2
+1  Q: 

jsonp with jquery

Can you give a very simple example of reading a jsonp request with jquery? I just can't get it to work.

A: 

http://api.jquery.com/jQuery.getJSON/#jsonp

The first example gets images from Flickr using JSONP.

Jeffery To
+3  A: 

Here is working example:

<html><head><title>Twitter 2.0</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"&gt;&lt;/script&gt;
</head><body>
<div id='tweet-list'></div>
<script type="text/javascript">
$(document).ready(function() {
    var url =  "http://api.twitter.com/1/statuses/user_timeline/codinghorror.json";
    $.getJSON(url + "?callback=?", null, function(tweets) {
        for(i in tweets) {
            tweet = tweets[i];
            $("#tweet-list").append(tweet.text + "<hr />");
        }
    });
});
</script>
</body></html>

Notice the ?callback=? at the end of the requested URL. That indicates to the getJSON function that we want to use JSONP. Remove it and a vanilla JSON request will be used. Which will fail due to the same origin policy.

You can find more information and examples on the JQuery site: http://api.jquery.com/jQuery.getJSON/

Tomas Sedovic
I was trying out $.ajax with those jsonp parameters and could not get that to work. Anyway, this works nicely, thanks.
manu1001