Question

Can some one tell me how to post request to a wcf rest service? my code is below

TResponse Post<TRequest, TResponse>(string uri, TRequset input){
  HttpClient client = new HttpClient();
  HttpContent content = new ObjectContent<TRequest>(input, new XmlMediaTypeFormatter());
  HttpResponseMessage message = client.PostAsync(uri, content).Result;
  return message.Content.ReadAsAsync<TResponse>().Result;
}

but it gives following exception

System.InvalidOperationException was unhandled by user code
HResult=-2146233079
Message=No MediaTypeFormatter is available to read an object of type 'String' from content with media type 'text/html'.
Source=System.Net.Http.Formatting

and the value of message variable is

message {StatusCode: 400, ReasonPhrase: 'Bad Request', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
Connection: Close
Cache-Control: private
Date: Wed, 19 Dec 2012 14:36:32 GMT
Server: ASP.NET
Server: Development
Server: Server/10.0.0.0
X-AspNet-Version: 4.0.30319
Content-Length: 1766
Content-Type: text/html
}}  System.Net.Http.HttpResponseMessage

i know wcf rest is deprecated. But can some one pls tell me how to implement this?
thx

Answer 1

Whenever you receive HTML and you expected data, the chances are that the HTML represents an error message from the server. Capture it and display it, and you’ll see what the error is.