passing complex object to rest wcf

Question

Passing custom object to REST WCF operation is giving me \"bad request error\". I have tried here with both uri path and query string type methods.Any help is greatly apprec

Answer 1

Everything seems to be fine, except that you have to wrap the data in a wrapper, and that is when you get the json data as {"mc":{"name":"Java"}} else you will get only {"name":"Java"} which is not a wrapped request. All these is required because you have set the WebMessageBodyStyle as Wrapped.

Below is the code.

  [OperationContract]
            [WebInvoke( Method = "POST", BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json)]
            string GetBook(myclass mc);

     [DataContract]    
        public class myclass
        {
            [DataMember]
            public string name { get; set; }
        }

public string GetBook(myclass mc)
            {
                return mc.name;
            }

Client:

  public class wrapper
    {
        public myclass mc;
    }
    public class myclass
    {
        public String name;
    }

    myclass mc = new myclass();
                mc.name = "Java";
                wrapper senddata = new wrapper();
                senddata.mc = mc;
                JavaScriptSerializer js = new JavaScriptSerializer();
                ASCIIEncoding encoder = new ASCIIEncoding();
                byte[] data = encoder.GetBytes(js.Serialize(senddata));
                HttpWebRequest req2 = (HttpWebRequest)WebRequest.Create(String.Format(@"http://localhost:1991/Service1.svc/GetBook?"));
                req2.Method = "POST";
                req2.ContentType = @"application/json; charset=utf-8";
                req2.MaximumResponseHeadersLength = 2147483647;
                req2.ContentLength = data.Length;
                req2.GetRequestStream().Write(data, 0, data.Length);
                HttpWebResponse response = (HttpWebResponse)req2.GetResponse();
                string jsonResponse = string.Empty;
                using (StreamReader sr = new StreamReader(response.GetResponseStream()))
                {
                    jsonResponse = sr.ReadToEnd();
                    Response.Write(jsonResponse);
                }

Hope that helps...