Saturday, 9 October 2010

Convert a service to view metadata over HTTPS

I wanted to host a WCF service in IIS over HTTPS (i.e. using SSL). I already had a service host setup in IIS with a mex endpoint configured for HTTP. So, I configured the host site to use SSL but when I browsed to the service in a web browser I got the following error:

https-error
“Could not find a base address that matches scheme http for the endpoint binding MetadataExchangeHttpBinding…”

To change the service to use HTTPS I hade to make a couple of changes.

  1. Set the metadata exchange endpoint to use the mexHttpsBinding (not the mexHttpBinding).
  2. Modify the service behaviour to enable getting metadata over HTTPS (httpsGetEnabled).
  3. Changed the service base address to use HTTPS.
<system.serviceModel>
  <services>
    <service behaviorConfiguration="ServiceBehavior" name="Service.Service">
      ...
      <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />
        <host> 
          <baseAddresses>
<add baseAddress="https://www.domaingoeshere.com/" />
</baseAddresses>
</host>
</service> </services> <bindings> ... </bindings> <behaviors> <serviceBehaviors> <behavior name="ServiceBehavior"> <serviceMetadata httpsGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> ... </behavior> </serviceBehaviors> </behaviors> </system.serviceModel>

NB: Don't forget that existing clients will have to update their service references.

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