Creating WS-I Basic Profile 1.1 Interoperable Services

To configure a WCF service endpoint to be interoperable with ASP.NET Web service clients:

• Use the System.ServiceModel.BasicHttpBinding type as the binding type for your service endpoint.

• Do not use callback and session contract features or transaction behaviors on your service endpoint

You can optionally enable support for HTTPS and transport-level client authentication on the binding.

The following features of the BasicHttpBinding class require functionality beyond WS-I Basic Profile 1.1:

• Message Transmission Optimization Mechanism (MTOM) message encoding controlled by the System.ServiceModel.BasicHttpBinding.MessageEncoding property. Leave this property at its default value, which is System.ServiceModel.WSMessageEncoding.Text to not use MTOM.

• Message security controlled by the System.ServiceModel.BasicHttpBinding.Security value provides WS-Security support compliant with WS-I Basic Security Profile 1.0. Leave this property at its default value, which is System.ServiceModel.SecurityMode.Transport to not use WS-Security.

To make the metadata for a WCF service available to ASP.NET, use the Web service client generation tools: Web Services Description Language Tool (Wsdl.exe), Web Services Discovery Tool (Disco.exe), and the Add Web Reference feature in Visual Studio; you must enable metadata publication. For more information, see Publishing Metadata Endpoints.

Example

Description

The following example code demonstrates how to add a WCF endpoint that is compatible with ASP.NET Web service clients in code and, alternatively, in configuration files.

Code

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.ServiceModel
Imports System.ServiceModel.Description

<ServiceContract()> _
Public Interface IEcho

    <OperationContract()> _
    Function Echo(ByVal s As String) As String

End Interface

Public Class MyService
    Implements IEcho

    Public Function Echo(ByVal s As String) As String Implements IEcho.Echo
        Return s
    End Function

End Class

Friend Class Program

    Shared Sub Main(ByVal args() As String)
        Dim baseAddress = "https://localhost:8080/wcfselfhost/"
        Dim host As New ServiceHost(GetType(MyService), _
                                    New Uri(baseAddress))

        ' Add a service endpoint using the created binding
        With host
            .AddServiceEndpoint(GetType(IEcho), _
                                New BasicHttpBinding(), _
                                "echo1")
            .Open()
            Console.WriteLine("Service listening on {0} . . .", _
                              baseAddress)
            Console.ReadLine()
            .Close()
        End With
    End Sub
End Class

using System;
using System.Collections.Generic;
using System.Text;
using System.ServiceModel;
using System.ServiceModel.Description;

[ServiceContract]
public interface IEcho
{
    [OperationContract]
    string Echo(string s);
}

public class MyService : IEcho
{
    public string Echo(string s)
    {
        return s;
    }
}

class Program
{
    static void Main(string[] args)
    {
        string baseAddress = "https://localhost:8080/wcfselfhost/";
        ServiceHost host = new ServiceHost(typeof(MyService), new Uri(baseAddress));

        // Create a BasicHttpBinding instance
        BasicHttpBinding binding = new BasicHttpBinding();

        // Add a service endpoint using the created binding
        host.AddServiceEndpoint(typeof(IEcho), binding, "echo1");

        host.Open();
        Console.WriteLine("Service listening on {0} . . .", baseAddress);
        Console.ReadLine();
        host.Close();
    }
}

<configuration>
  <system.serviceModel>
    <services>
      <service name="MyService" behaviorConfiguration="HttpGetMetadata">
        <endpoint address="echo2" contract="IEcho" binding="basicHttpBinding" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="HttpGetMetadata">
          <serviceMetadata httpGetEnabled="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

<configuration>
  <system.serviceModel>
    <services>
      <service name="MyService" behaviorConfiguration="HttpGetMetadata">
        <endpoint address="echo2" contract="IEcho" binding="basicHttpBinding" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="HttpGetMetadata">
          <serviceMetadata httpGetEnabled="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

<configuration>
  <system.serviceModel>
    <services>
      <service name="MyService" behaviorConfiguration="HttpGetMetadata">
        <endpoint address="echo2" contract="IEcho" binding="basicHttpBinding" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="HttpGetMetadata">
          <serviceMetadata httpGetEnabled="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

See Also

Concepts

Interoperability with ASP.NET Web Services