POST data in JSON format

Admin 1
Viewed 315287

I have some data that I need to convert to JSON format and then POST it with a JavaScript function.

<body onload="javascript:document.myform.submit()">
<form action="https://www.test.net/Services/RegistrationService.svc/InviteNewContact" method="post" name="myform">
  <input name="firstName" value="harry" />
  <input name="lastName" value="tester" />
  <input name="toEmail" value="testtest@test.com" />
</form>
</body>

This is the way the post looks now. I need it submit the values in JSON format and do the POST with JavaScript.

post xmlhttprequest json javascript
3 Answers

Here is an example using jQuery...

 <head>
   <title>Test</title>
   <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
   <script type="text/javascript" src="http://www.json.org/json2.js"></script>
   <script type="text/javascript">
     $(function() {
       var frm = $(document.myform);
       var dat = JSON.stringify(frm.serializeArray());

       alert("I am about to POST this:\n\n" + dat);

       $.post(
         frm.attr("action"),
         dat,
         function(data) {
           alert("Response: " + data);
         }
       );
     });
   </script>
</head>

The jQuery serializeArray function creates a Javascript object with the form values. Then you can use JSON.stringify to convert that into a string, if needed. And you can remove your body onload, too.

Josh_Stodola_544200
Related