mex binding error in WCF

Question

Hello everyone,

I am using VSTS 2008 + C# + .Net 3.0. I am using self-hosted WCF. When executing the following statement, there is the following binding not found error. I have posted my whole app.config file, any ideas what is wrong?

ServiceHost host = new ServiceHost(typeof(MyWCFService));

Error message,

Could not find a base address that matches scheme http for the endpoint with binding MetadataExchangeHttpBinding. Registered base address schemes are [https].

Full app.config,

<?xml version="1.0"?>
<configuration>
  <system.serviceModel>
    <bindings>
      <wsHttpBinding>
        <binding name="MyBinding"
            closeTimeout="00:00:10"
            openTimeout="00:00:20"
            receiveTimeout="00:00:30"
            sendTimeout="00:00:40"
            bypassProxyOnLocal="false"
            transactionFlow="false"
            hostNameComparisonMode="WeakWildcard"
            maxReceivedMessageSize="100000000"
            messageEncoding="Mtom"
            proxyAddress="http://foo/bar"
            textEncoding="utf-16"
            useDefaultWebProxy="false">
          <reliableSession ordered="false"
               inactivityTimeout="00:02:00"
               enabled="true" />
          <security mode="Transport">
            <transport clientCredentialType="Digest"
               proxyCredentialType="None"
               realm="someRealm" />
          </security>
        </binding>
      </wsHttpBinding>
    </bindings>
    <services>
      <service name="MyWCFService"
                behaviorConfiguration="mexServiceBehavior">
        <host>
          <baseAddresses>
            <add baseAddress="https://localhost:9090/MyService"/&gt;
          </baseAddresses>
        </host>
        <endpoint address="" binding="wsHttpBinding" bindingConfiguration="MyBinding" contract="IMyService"/>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="mexServiceBehavior">
          <serviceMetadata httpGetEnabled="True"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
<startup><supportedRuntime version="v2.0.50727"/></startup></configuration>

thanks in advance, George

Answer 1

The base address for your service defines "HTTPS://" - but your mex address is "HTTP".

If you want your service to use https://, you'll need to use the mexHttpsBinding as well:

<services>
      <service name="MyWCFService"
                behaviorConfiguration="mexServiceBehavior">
        <host>
          <baseAddresses>
            <add baseAddress="https://localhost:9090/MyService"/&gt;
          </baseAddresses>
        </host>
        <endpoint address="" binding="wsHttpBinding" bindingConfiguration="MyBinding" contract="IMyService"/>
        <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />
      </service>
    </services>

Marc

Answer 2

Can I go for the double score? :)

As you're using WS-Http you are binding to an HTTPS protocol, so you need to use the correct MEX binding;

<endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />