WSHttpBinding

The WSHttpBinding is the most commonly used binding for SOAP‑based services that require security, reliability and interoperability with other platforms. It implements WS‑* specifications (WS‑Security, WS‑ReliableMessaging, WS‑Policy, etc.) and is the default binding for WCF services exposed via HTTP.

Key Features

Transport security (HTTPS) or message security (WS‑Security).
Supports reliable sessions (WS‑ReliableMessaging).
Built‑in support for WS‑Trust and WS‑Federation.
Negotiable security modes: None, Transport, Message, TransportWithMessageCredential.
Configurable ReliableSession and TransactionFlow.

Creating a Service with WSHttpBinding (C#)

using System;
using System.ServiceModel;

[ServiceContract]
public interface ICalculator
{
    [OperationContract]
    int Add(int a, int b);
}

public class CalculatorService : ICalculator
{
    public int Add(int a, int b) => a + b;
}

class Program
{
    static void Main()
    {
        var baseAddress = new Uri("http://localhost:8080/CalculatorService");
        var binding = new WSHttpBinding(SecurityMode.Message);
        binding.Security.Message.ClientCredentialType = MessageCredentialType.Windows;

        using (var host = new ServiceHost(typeof(CalculatorService), baseAddress))
        {
            host.AddServiceEndpoint(typeof(ICalculator), binding, "");
            host.Open();
            Console.WriteLine("Service is running...");
            Console.ReadKey();
        }
    }
}

Configuration (app.config)

<configuration>
  <system.serviceModel>
    <services>
      <service name="CalculatorService">
        <endpoint address="" binding="wsHttpBinding"
                  bindingConfiguration="SecureBinding"
                  contract="ICalculator" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8080/CalculatorService" />
          </baseAddresses>
        </host>
      </service>
    </services>

    <bindings>
      <wsHttpBinding>
        <binding name="SecureBinding"
                 securityMode="Message">
          <security>
            <message clientCredentialType="Windows" />
          </security>
        </binding>
      </wsHttpBinding>
    </bindings>
  </system.serviceModel>
</configuration>

Consuming the Service (C# Client)

using System;
using System.ServiceModel;

class Client
{
    static void Main()
    {
        var binding = new WSHttpBinding(SecurityMode.Message);
        binding.Security.Message.ClientCredentialType = MessageCredentialType.Windows;
        var endpoint = new EndpointAddress("http://localhost:8080/CalculatorService");

        var factory = new ChannelFactory<ICalculator>(binding, endpoint);
        var proxy = factory.CreateChannel();

        int result = proxy.Add(5, 7);
        Console.WriteLine($""5 + 7 = {result}"");
        ((IClientChannel)proxy).Close();
        factory.Close();
    }
}

Testing the Service

Run the service host, then execute the client. You should see the output:

5 + 7 = 12

Use WCF Test Client for exploratory testing.

Microsoft Docs