JSON support isn't good enough

Submitted by fsword on Wed, 03/28/2007 - 09:59.

Dojo Core Support

We use dojo as main platform on WEB.
In my opinion, the browser side can send data to server side by XHR. It makes Browser/Server and Client/Server are very much alike. Similarly, I want to define a uniformed interface by JSON object.
But dojotoolkit stopped me, dojo.io.bind can't send a JSON string to server side.
I can use a trick like "/servlet?jsonstring=blablabla" to send json string, but it smells bad.
Could someone help me ? or Should we change the dojo's API ?

Login or register to post comments
Subscribe post

You can send text... JSON is

Submitted by ktiedt on Wed, 03/28/2007 - 13:55.

You can send text... JSON is serialized Javascript objects in a text string... How can you not send JSON then?
-Karl

Maybe we can use another

Submitted by fsword on Thu, 03/29/2007 - 05:18.

Maybe we can use another property to support json object, How about this one :
var data = {name: "mike", nickname: "michael"};
dojo.io.bind({
url: "service/userservice/addUser",
method: "POST",
load: function(type, data, evt){
//......
},
json: data
});

Unnecessary, see the

Submitted by dmachi on Thu, 03/29/2007 - 06:17.

Unnecessary, see the postcontent property or take a look at the dojo.rpc.JsonService which does this same thing.

I don't think it is a good

Submitted by fsword on Thu, 03/29/2007 - 06:56.

I don't think it is a good idea, json is a simple and right way to transfer data between server and client/browser, that is a pure technology which isn't depend on other language's API. Use it as a RPC language like java(rmi) , corba will make the application far away from the REST's principle.
We need json, not jsonrpc.

I have no idea what you are

Submitted by dmachi on Thu, 03/29/2007 - 07:20.

I have no idea what you are talkign about. I'm very familiar with JSON, JSON-RPC, and Dojo, and I can say with 100% certainty we have full support for JSON and you can post JSON wehrever you want very easily. I've described out how post JSON to the server. I said you could look at the JSON-RPC as an example as it does the exact same thing you are askign to do. if you would read the code that i posted, you will see that it is posting a json string.

I think this one is the best

Submitted by fsword on Thu, 03/29/2007 - 07:36.

I think this one is the best solution -- http://dojotoolkit.org/node/535#comment-1076
Thanks a lot.

yeah, thats why i posted it.

Submitted by dmachi on Thu, 03/29/2007 - 14:12.

yeah, thats why i posted it.

It most certainly can send

Submitted by ttrenka on Wed, 03/28/2007 - 14:07.

It most certainly can send JSON strings to the server; you'll send it either as a GET (i.e. on the query string) or as a POST. Either way, what you should probably do is set the content object of bind to your string:

var myJsonString = dojo.json.serialize(myObjects);
dojo.io.bind({
    url:"someUrl.php",
    content:{
        json:myJsonString
    }
});

that's not good enough, if

Submitted by fsword on Thu, 03/29/2007 - 03:47.

that's not good enough, if you can send json string directly, why use "json" prefix ?
On the other hand, character encoding also take some trouble on it, I read input stream from servlet, but what I can get is "json=%7B%22name%22%3A%22a%22%2C%22description%22%3A%22a%22%2C%22ok%22
%3A%22OK%22%2C%22cancel%22%3A%22Cancel%22%7D".
js code:

var data = '{"name":"a","description":"a","ok":"OK","cancel":"Cancel"}';
dojo.io.bind({
    url: "service/userservice/addUser",
    method: "POST",
    load: function(type, data, evt){
        if(type=="load"){
            var result = eval("(" + data + ")");
            store.addData(result,result.id);
            var addDialog = dojo.widget.byId("addDialog").hide();
        }else{
            alert(data);
        }
    },
    content: {json: data.toJSONString()}
});

It likes a bad idea.

well in this case you

Submitted by dmachi on Thu, 03/29/2007 - 04:05.

well in this case you wouldnt' do that..you'd do do content: data

That will transform your javascript object into post parameters. I think what you are asking for his how to do a raw post of json content. You would do that like this:

dojo.io.bind({
   url: "someurl",
   method: "POST",
   postContent: dojo.json.serialize(someObject),
   load: function(type,data) { /* some load thing */ },
   error: function(type, data) { /* some error thing */}
});

Great!! That's what I want.

Submitted by fsword on Thu, 03/29/2007 - 06:42.

Great!! That's what I want.

The "json" prefix was just

Submitted by ttrenka on Thu, 03/29/2007 - 13:46.

The "json" prefix was just an example of a variable name; it doesn't need to be "json", it can be anything you want--and as dmachi mentioned, you can post JSON raw if you want.

A question.

Submitted by wei1224dojo on Fri, 05/16/2008 - 04:43.

[EDIT: Fixed this post so that it is readable, with a real subject.]

Why all of you use "dojo.io.bind" instead of "dojo.xhrGet" ? "dojo.xhrGet" is made just for Ajax , it is designed to simplify our codes.
But ,well ,I find the same problem , it can only send string type , it can't send object type. I want get a json object from the server by "xhrGet" , what shall I do?

This thread is back from the Dojo 0.4 days.

Submitted by ttrenka on Fri, 05/16/2008 - 17:03.

What you want to do with xhrGet is add the following named argument:

dojo.xhrGet({
url: '../JSON/getSingleSmallClass.json.php',
handleAs: "json",
load: myAjax,
error: myError,
content: {'ID': ID}
});

Otherwise you will need to manually evaluate your returned data.

Search

JSON support isn't good enough