DataSource pb with POST raw data

[Nicolas]

Hi,

I want to use DataSource to connect to a REST API. But when I use DataSource to post raw data the body is changed just before the HTTP request, which fails due to bad request format. When I do the same with JQuery there is no problem. Here is a code snippet that illustrate that:

var postUrl = 'http://localhost:8080/catalog/devices';

var postBody = '{"model":"765-VVH-78"}';

 

var dataSource = new kendo.data.DataSource({

    transport: {

        create: {

            url: postUrl,

            type: 'POST',

            contentType: "application/json",

            data: postBody

        }

    }

});

 

var kendoPost = function() {

    dataSource.transport.create();

}

 

var jqueryPost = function() {

    $.ajax({

        url: postUrl,

        type: 'POST',

        contentType: "application/json",

        data: postBody

    });

}

I attach a screenshot of Firebug showing the results. "jqueryPost" post my raw data unchanged but "kendoPost" convert it before sending the HTTP request.

So I dig the kendo source code with firebug and I find where this happens. It's in "setup" method of the RemoteTransport class, at the following line:

parameters = extend(true, {}, data, options.data);

At this point "data" contains the raw data which is a string and not an object. And when a string is given to "extend" it is seen as an object, i.e. an array of characters, which is then converted to an object. Example: the call "$.extend({}, 'str')" returns {0: 's', 1: 't', 2: 'r'}.

So to ensure my raw data is not convert before the POST, I have modified the "setup" method for RemoteTransport class in kendo.web.js:

if (typeof data == "string") {

    parameters = data;

} else {

    parameters = extend(true, {}, data, options.data);

}

This way DataSource POST works as I expect.

But am I missing something? Is there another way to do what I want? Or is this a missing feature?

Thanks!