How to read json from url in javascript?

Question

I am working on get json from server in javascript.

i used pure javascript, jquery but i am getting status 0.

$(document).ready(function() {
    $("#btn").click(function(event){
        $.getJSON('http://myhost/myapp/data.json', function(jd) {
            alert(jd);
        });
    });
});

<body>
    <input type="button" id="btn" value="Load Data" />
</body>

getJSON() block not called.

can anyone help me?

Put another argument on the getJSON call like function(error) { alert(error); } and see if it is called... then it was an error... — Miguel Lattuada, Jan 07 '16 at 16:36
question! are you on the same domain? Have you checked that CORS is not blocking your request? — Lelio Faieta, Jan 07 '16 at 16:37
Can you install fiddler and see what response you are getting for that ajax call ? It could also be an cross domain issue — Umamaheswaran, Jan 07 '16 at 16:43
i checked my json content is correct and i used $.getJSON(...).fail() its called. — bhautikmewada191, Jan 07 '16 at 16:50
i got error in console 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. — bhautikmewada191, Jan 07 '16 at 16:59
Console is king : http://stackoverflow.com/questions/20035101/no-access-control-allow-origin-header-is-present-on-the-requested-resource — Pogrindis, Jan 07 '16 at 17:04

score 0 · Answer 1 · edited May 23 '17 at 11:44

0

Check if you allow CORS on your host or if your response was empty!

You might also try to use $.ajax().

$.ajax("http://myhost/myapp/data.json", function (data) {
    console.log(data);
}

edited May 23 '17 at 11:44

Community

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answered Jan 07 '16 at 16:37

Clemens Himmer

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score -2 · Answer 2 · answered Jan 07 '16 at 16:34

-2

use jQuery.getJSON() $.ajax({ dataType: "json", url: url, data: data, success: success }); read more from http://api.jquery.com/jquery.getjson

answered Jan 07 '16 at 16:34

Patrick Mutwiri

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It's basically the same call. OP is just using a shorthand. If the shorthand fails because the URL is incorrect or the JSON is invalid, this will fail as well. The problem is likely elsewhere. – Jeremy Thille Jan 07 '16 at 16:35
give it a try first @JeremyThille – Patrick Mutwiri Jan 07 '16 at 16:38
3

@PatrickMutwiri, There is no need to try, the page you even link to says **This is a shorthand Ajax function, which is equivalent to** to the code you have supplied, both will do exactly the same thing – Patrick Evans Jan 07 '16 at 16:39

How to read json from url in javascript?

2 Answers2