Getting null values in post wcf service - wcf

Question

I am writing a WCF service. Here is Service side implementation
[OperationContract(Name="GetMediaFile")]
[Description(ServiceDescConstants.GetMediaFile)]
[WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = UriTemplateConstants.GetMediaFile)]
Stream GetMediaFile(string type, string mediaId);
where
UriTemplateConstants.GetMediaFile = "GetMediaFile?type={type}&mediaId={mediaId}";
Here is interface method implementation
public Stream GetMediaFile(string type, string mediaId)
{
CustomerBL customerBl = new CustomerBL();
return customerBl.getMediaFile(Convert.ToInt32(type), Convert.ToInt32(mediaId));
}
On client side I am using RestClient plugin for testing service.
Here is data I am sending
URL : customersite/GetMediaFile
Header : Content-Type = x-www-form-urlencoded
Body : type=0&mediaId=1
Any help !!
Now the PROBLEM is that I am getting null values

Answer 1

Modify the interface method:
[OperationContract(Name = "GetMediaFile")]
[Description(ServiceDescConstants.GetMediaFile)]
[WebInvoke(Method = "POST",
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Wrapped,
UriTemplate = "/GetMediaFile")]
Stream GetMediaFile(Stream input);
And also modify it's implementation:
public Stream GetMediaFile(Stream input)
{
StreamReader sr = new StreamReader(input);
string s = sr.ReadToEnd();
sr.Dispose();
NameValueCollection qs = HttpUtility.ParseQueryString(s);
string type = qs["type"];
string mediaId = qs["mediaId"];
CustomerBL customerBl = new CustomerBL();
return customerBl.getMediaFile(Convert.ToInt32(type), Convert.ToInt32(mediaId));
}
In the web.config, use the following configuration (make sure that you use your own namespaces / classes / interfaces names):
<system.serviceModel>
<services>
<service name="WcfServices.MyService">
<endpoint address=""
name="webEndPoint"
behaviorConfiguration="webBehavior"
binding="webHttpBinding"
contract="WcfServices.IMyService" />
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="webBehavior">
<webHttp />
</behavior>
</endpointBehaviors>
</behaviors>
</system.serviceModel>
This is a sample request:
POST /MyService.svc/GetMediaFile HTTP/1.1
Host: localhost:64531
Cache-Control: no-cache
Content-Type: application/x-www-form-urlencoded
type=0&mediaId=1
The solution is an adaptation of Edgardo Rossetto's blog article, Raw HTTP POST with WCF.