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  • Category: WCF

    Sample WCF Code for JSON Post Method

    Actually i need to pass json data to WCF Web Service and i will send back json data. i need sample source code or give explanation of this.
  • #766056
    To handle the WCF in Json is very simple. You have to take care the following in your application.

    In the WCF interface specify the Request and Response format.

    [OperationContract]
    [WebInvoke(UriTemplate = "/Login",
    RequestFormat = WebMessageFormat.Json,
    ResponseFormat = WebMessageFormat.Json, Method = "POST")]
    Login_Response Login(Login_Request Login_RequestP);


    You can all the WCF service as follows as REST Call.

    HttpWebRequest TheRequestL = (HttpWebRequest)WebRequest.Create("URL");
    TheRequestL.ContentType = "application/json";
    TheRequestL.ContentLength = zInputJsonDataP.Length;

    TheRequestL.Method = "POST";
    TheRequestL.AllowAutoRedirect = false;

    Stream aRequestStreamL = TheRequestL.GetRequestStream();
    byte[] postBytes = System.Text.Encoding.ASCII.GetBytes(zInputDataP);
    aRequestStreamL.Write(postBytes, 0, postBytes.Length);
    aRequestStreamL.Close();

    HttpWebResponse aResponseL = (HttpWebResponse)TheRequestL.GetResponse();
    string zVersionL = aResponseL.ProtocolVersion.ToString();
    StreamReader aStreamReaderL = new StreamReader(aResponseL.GetResponseStream());

    StringBuilder aHttpCallXmlOutL = new StringBuilder();
    string zTempL;
    while ((zTempL = aStreamReaderL.ReadLine()) != null)
    {
    aHttpCallXmlOutL.Append(zTempL);
    }

    aStreamReaderL.Close();
    zOutputDataP = aHttpCallXmlOutL.ToString();

    By Nathan
    Direction is important than speed

  • #766071
    Hi,
    1. Add some DataContract to your WCFService application:

    using System.Runtime.Serialization;
    namespace WCFService
    {
    [DataContract]
    public class XYZContract
    {
    [DataMember]
    public string FName { get; set; }
    [DataMember]
    public string LName { get; set; }
    }
    }

    2. Add WCF Service reference and name it as WCFService1.
    3. Call these functions from your application:
    PostData();
    GetData();

    private static void PostData()
    {
    XYZContract UserInfo = new XYZContract
    {
    FName = "XYZ",
    LName = "PQR"
    };

    DataContractJsonSerializer jSonSerializer =
    new DataContractJsonSerializer(typeof(XYZContract));
    MemoryStream objMemrStrm = new MemoryStream();
    jSonSerializer.WriteObject(objMemrStrm, UserInfo);
    string szData =
    Encoding.UTF8.GetString(objMemrStrm.ToArray(), 0, (int)objMemrStrm.Length);
    WebClient objWC = new WebClient();
    objWC.Headers["Content-type"] = "application/json";
    objWC.Encoding = Encoding.UTF8;
    objWC.UploadString("http://localhost:56462/WCFService1.svc
    /SaveDetails", "POST", szData); /*Assuming that WCFService contains SaveDetails method*/
    }

    private static void GetData()
    {
    WebClient objWC = new WebClient();
    string szFirstName= "XYZ";
    string szURL =
    string.Format("http://localhost:56462/WCFService1.svc
    /GetDetails/{0}", szFirstName); /*Assuming that WCFService contains GetDetails method*/
    byte[] bytData = objWC.DownloadData(szURL);
    Stream streamData = new MemoryStream(bytData);
    DataContractJsonSerializer jSonSerializer =
    new DataContractJsonSerializer(typeof(XYZContract));
    XYZContract UserInfo = jSonSerializer.ReadObject(streamData) as XYZContract;
    Console.WriteLine("First Name : " + UserInfo.FName);
    Console.WriteLine("Last Name : " + UserInfo.LName);
    }

  • #766082
    Hi,,

    Inside IService:

    [ServiceContract]
    public interface IService1
    {
    [OperationContract]
    [WebInvoke(Method = "GET", UriTemplate = "/InsertBook/{bookName}/{author}", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped)]
    void InsertBookDetails(string bookName, string author);
    }

    2)Inside Service.cs

    public class Service1 : IService1
    {
    public void InsertBookDetails(string bookName, string author)
    {
    using (TestBook_RestEntities obj = new TestBook_RestEntities())
    {
    obj.sp_InsertBookDetails(bookName, author, DateTime.Now, DateTime.Now);
    }
    }
    }

    3)Entity

    [DataContract]
    public class Book_Entity
    {
    [DataMember]
    public int Id { get; set; }
    [DataMember]
    public string BookName { get; set; }
    [DataMember]
    public string Author { get; set; }
    [DataMember]
    public string CreatedDate { get; set; }
    [DataMember]
    public string ModifiedDate { get; set; }
    }

  • #766718
    HI,

    Go through the below mentioned Links, It will help u lot

    1.http://dotnetmentors.com/wcf/wcf-rest-service-to-get-or-post-json-data-and-retrieve-json-data-with-datacontract.aspx

    2.http://www.codeproject.com/Articles/201901/CREATE-RESTful-WCF-Service-API-Using-POST-Step-By

    3.http://www.codeproject.com/Articles/722874/Post-JSON-data-to-WCF-RESTful-Service-using-jQuery

    4.http://www.topwcftutorials.net/2014/02/post-json-to-wcf-restful-service.html


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