WCF - Post JSON Object

Question

I am trying to execute POST JSON for WCF service. The json object contains an array. I am wondering how to properly bind a contract to my data. If anyone can give me a pointer, I would really appreciate it. Currently my cart object is null

This is what my service interface looks like:

public interface IService { [OperationContract] [WebInvoke(UriTemplate = "/cart", Method = "POST", BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json,ResponseFormat = WebMessageFormat.Json)] Ship GetShipInfo( Cart cart, string Website); } [DataContract] public class Cart { [DataMember] public Int32 ProductID { get; set;} [DataMember] public decimal ItemPrice { get; set; } [DataMember] public Int16 Qty { get; set; } [DataMember] public String SizeWidth { get; set; } } 

My client call is as follows

CUSTOMER CHALLENGE

 using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Runtime.Serialization.Json; using System.Net; using System.IO; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(string)); Cart cart = new Cart{ ProductID = 1000, ItemPrice = Convert.ToDecimal(32.50), Qty = 1, SizeWidth = "6M" }; WebClient Proxy1 = new WebClient(); Proxy1.Headers["Content-type"] = "application/json"; MemoryStream ms = new MemoryStream(); DataContractJsonSerializer serializerToUplaod = new DataContractJsonSerializer(typeof(Cart)); serializerToUplaod.WriteObject(ms, cart); byte[] data = Proxy1.UploadData("http://localhost:54897/IphoneService.svc/cart", "POST", ms.ToArray()); Stream stream = new MemoryStream(data); obj = new DataContractJsonSerializer(typeof(Ship)); var Ship = obj.ReadObject(stream) as Ship; } public class Ship { public Decimal SecondDay { get; set; } public Decimal NextDay { get; set; } } public class Cart { public Int32 ProductID { get; set; } public Decimal ItemPrice { get; set; } public Int16 Qty { get; set; } public String SizeWidth { get; set; } } } 

My JSON looks like this

 {"cart": [ {"ProductID":2957, "Qty":1, "ItemPrice":60, "SizeWidth":"5M"} ] } 

Answer 1

The raw request for your WCF REST method should look like the following:

 POST http://localhost:54897/IphoneService.svc/cart HTTP 1.1 Content-Type: application/json Host: localhost {"cart":{"ProductId":1,"ItemPrice":60,"Qty":1,"SizeWidth":"5M"},"Website":"sample website"} 

The answer in JSON will look like this:

 HTTP/1.1 200 OK Content-Type: application/json Content-Length: 30 {"SecondDay":5.0, "NextDay":7.0}