Calling WCF Service in Plugin in CRM

Suppose this is our simple WCF Service.

[ServiceContract]
   public interface IService1
   {
       [OperationContract]
       string GetData(); 
     
   }

public class Service1 : IService1
   {
       public string GetData()
       {
           return “Hello World”+DateTime.Now.ToLongTimeString();
       }
     
   }

Now if we add its service reference in our plugin and then deploy it, while running we would receive this error.

Could not find default endpoint element that references contract ‘ServiceReference1.IService1’ in the ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this contract could be found in the client element.

The reason for this is because the configuration information for the WCF service from the client side is missing. As class library won’t have their own config file.

Suppose if we add service reference to the above Service in a windows application, we can find the following information being added to the app.config file

<?xml version=”1.0″ encoding=”utf-8″ ?>
<configuration>
    <!–<system.serviceModel>
        <bindings>
            <basicHttpBinding>
                <binding name=”BasicHttpBinding_IService1″ closeTimeout=”00:01:00″
                    openTimeout=”00:01:00″ receiveTimeout=”00:10:00″ sendTimeout=”00:01:00″
                    allowCookies=”false” bypassProxyOnLocal=”false” hostNameComparisonMode=”StrongWildcard”
                    maxBufferSize=”65536″ maxBufferPoolSize=”524288″ maxReceivedMessageSize=”65536″
                    messageEncoding=”Text” textEncoding=”utf-8″ transferMode=”Buffered”
                    useDefaultWebProxy=”true”>
                    <readerQuotas maxDepth=”32″ maxStringContentLength=”8192″ maxArrayLength=”16384″
                        maxBytesPerRead=”4096″ maxNameTableCharCount=”16384″ />
                    <security mode=”None”>
                        <transport clientCredentialType=”None” proxyCredentialType=”None”
                            realm=”” />
                        <message clientCredentialType=”UserName” algorithmSuite=”Default” />
                    </security>
                </binding>
            </basicHttpBinding>
        </bindings>
        <client>
            <endpoint address=”http://localhost:58844/Service1.svc” binding=”basicHttpBinding”
                bindingConfiguration=”BasicHttpBinding_IService1″ contract=”ServiceReference1.IService1″
                name=”BasicHttpBinding_IService1″ />
        </client>
    </system.serviceModel>–>
</configuration>

So now in case of our plugin we need to define the binding and endpoint information programmatically, something like this

try

{

BasicHttpBinding myBinding = new
BasicHttpBinding();

myBinding.Name = “BasicHttpBinding_IService1”;

myBinding.Security.Mode = BasicHttpSecurityMode.None;

myBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None;

myBinding.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.None;

myBinding.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.UserName;

EndpointAddress endPointAddress = new
EndpointAddress(“http://localhost:58844/Service1.svc&#8221;);

ServiceReference1.Service1Client myClient = new ServiceReference1.Service1Client(myBinding, endPointAddress);

MessageBox.Show(myClient.GetData());

}

catch (Exception EX)

{

throw EX;

}

This way we would be able to access our WCF service inside plugin.

Hope it helps !