Call HTTPS REST service from WCF - wcf

Question

I need to call some REST services from a third parties server over HTTPS. My thinking was that I would create myself a nice little WCF library to handle these calls and deserialise the responses. I'm coming a tad unstuck though.
The services I am trying to call have a test service that simply responds OK.
I have created an OperationContract in my interface as shown below:
[OperationContract]
[WebGet(BodyStyle = WebMessageBodyStyle.Bare,
ResponseFormat = WebMessageFormat.Xml,
UriTemplate = "test")]
string Test();
In my service code I have a public method below:
public string Test()
{
ChannelFactory<IService1> factory = new ChannelFactory<IService1>("UMS");
var proxy = factory.CreateChannel();
var response = proxy.Test();
((IDisposable)proxy).Dispose();
return (string)response;
}
My app.config looks like this:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.web>
<compilation debug="true" />
</system.web>
<system.serviceModel>
<client>
<endpoint address="https://61.61.34.19/serv/ums/"
binding="webHttpBinding"
behaviorConfiguration="ums"
contract="WCFTest.IService1"
bindingConfiguration="webBinding"
name="UMS" />
</client>
<services>
<service name="WCFTest.Service1" behaviorConfiguration="WCFTest.Service1Behavior">
<host>
<baseAddresses>
<add baseAddress = "http://localhost:8731/Design_Time_Addresses/WCFTest/Service1/" />
</baseAddresses>
</host>
<endpoint address ="" binding="wsHttpBinding" contract="WCFTest.IService1">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="ums">
<clientCredentials>
<clientCertificate findValue="restapi.ext-ags.801"
storeLocation="CurrentUser"
x509FindType="FindBySubjectName"/>
</clientCredentials>
<webHttp/>
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="WCFTest.Service1Behavior">
<serviceMetadata httpGetEnabled="True"/>
<serviceDebug includeExceptionDetailInFaults="False" />
</behavior>
</serviceBehaviors>
</behaviors>
<bindings>
<webHttpBinding>
<binding name="webBinding">
<security mode="Transport">
<transport clientCredentialType="Certificate" proxyCredentialType="None"/>
</security>
</binding>
</webHttpBinding>
</bindings>
</system.serviceModel>
</configuration>
I try to invoke the test method but receive the error "Could not establish trust relationship for the SSL/TLS secure channel with authority '61.61.34.19'."
Can anyone see what I'm missing here?
Any help appreciated. Cheers.

Answer 1

Could not establish trust relationship for the SSL/TLS secure channel with authority '61.61.34.19'.
This typically means there's a problem with the server's SSL cert. Was it self-signed? If so, you have to establish trust for the cert, typically by trusting the issuing CA or installing the cert in the windows cert store.

Answer 2

Try changing the webHttpBinding security setting from "Transport" to "None".