HTTP POST Callout to .NET Web Service

[karnadesai]

Hello Everyone,

I have created a RESTFUL .NET Web Service using WCF. I want to integrate this web service within Salesforce.

My code for .NET and Salesforce is below. The problem i am facing right now is that whenever i populate the body and pass XML data my .NET web service returns bad request error. For testing my .NET Web service i had created a client in C# and also used tool called fiddler. It works fine for both of them.

My .NET Code,

Code for IService

[OperationContract]
[WebInvoke(UriTemplate = "getXML", Method = "POST", ResponseFormat = WebMessageFormat.Xml, RequestFormat = WebMessageFormat.Xml)]
String getXML(XElement response);

Code for Service

public String getXML(XElement response)
{
return "Hello World";
}

My Salesforce APEX Code is,

 HttpRequest req = new HttpRequest();
req.setEndpoint(url);
req.setHeader('Content-Type', 'text/xml');

req.setCompressed(true); // otherwise we hit a limit of 32000
req.setMethod('POST');
req.setHeader('Accept', 'text/xml;charset=utf-8');
String email='karnadesai@gmail.com';
string firstName='karna';
String requestString = '<list>'+
'<user>'+'<userId>0</userId>'+'<userName>othmanelmoulat</userName>'+
'<password>123qwe</password>'+'<mainRoleId>5</mainRoleId>'+
'<contact>'+'<email>'+email+'</email>'+
'<firstName>'+firstName+'</firstName></contact>'+
'</user></list>';

req.setHeader('Content-Length',String.valueOf(requestString.length()));
req.setBody(requestString);

Http http = new Http();
HttpResponse res = http.send(req);

System.debug(res.getBody());

I get bad request error only when i set the body of request. I have to pass data using XML only to this web service. Thanks for your help

[karnadesai · Accepted solution]

Problem Solved.

For some reason .NET does not expect compressed data and also there is no need setting content length explicitly.

Remove Following Lines

req.setCompressed(true); // otherwise we hit a limit of 32000

req.setHeader('Content-Length',String.valueOf(requestString.length()));