How to Invoke Restful Service with JSON request c#

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I am trying to invoke a REST Service developed in .net with request in Json format. However, the REST service works fine with the request in xml format. Can you please let me know if there is any issue in the way the RequestFormat is defined below.

Here is the interface code:
[ServiceContract]
public interface ISalesOrderPostService
{
//POST operation
[OperationContract]
[WebInvoke(UriTemplate = "", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json, Method = "POST")]
String PostSalesOrder(SalesOrder sales_order);
}

Here is the Response:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Request Error</title>
<style>BODY { color: #000000; background-color: white; font-family: Verdana; margin-left: 0px; margin-top: 0px; } #content { margin-left: 30px; font-size: .70em; padding-bottom: 2em; } A:link { color: #336699; font-weight: bold; text-decoration: underline; } A:visited { color: #6699cc; font-weight: bold; text-decoration: underline; } A:active { color: #336699; font-weight: bold; text-decoration: underline; } .heading1 { background-color: #003366; border-bottom: #336699 6px solid; color: #ffffff; font-family: Tahoma; font-size: 26px; font-weight: normal;margin: 0em 0em 10px -20px; padding-bottom: 8px; padding-left: 30px;padding-top: 16px;} pre { font-size:small; background-color: #e5e5cc; padding: 5px; font-family: Courier New; margin-top: 0px; border: 1px #f0f0e0 solid; white-space: pre-wrap; white-space: -pre-wrap; word-wrap: break-word; } table { border-collapse: collapse; border-spacing: 0px; font-family: Verdana;} table th { border-right: 2px white solid; border-bottom: 2px white solid; font-weight: bold; background-color: #cecf9c;} table td { border-right: 2px white solid; border-bottom: 2px white solid; background-color: #e5e5cc;}</style>
</head>
<body>

Request Error

xmlns="">The server encountered an error processing the request. Please see the
service help page for constructing valid requests to the service.

</body>
</html>

Posted 22-Aug-13 2:35am

Member 10225425

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Jameel VM · Answer 1 · 2013-08-22T03:46:00

Solution 1

Try this link
http://fromjami.wordpress.com/2013/05/26/call-restful-service-using-httpwebrequest-and-post-data/[^]

Hope this helps

Posted 22-Aug-13 3:46am

Jameel VM