C# helper class for connecting to SDL Media Manager

MediaManagerHelper.cs

using Migration.MediaManager;
using System.ServiceModel;
using System.IdentityModel.Tokens;
using System.Configuration;
using System.ServiceModel.Security;
using System.IdentityModel.Protocols.WSTrust;

namespace Migration.Helpers
{
  public class MediaManagerHelper
  {
    private static SecurityToken RequestSecurityToken()
    {
      WSTrustChannelFactory factory = new WSTrustChannelFactory(new WS2007HttpBinding("ws2007HttpsBindingConfiguration"),
        new EndpointAddress(ConfigurationManager.AppSettings["IssuerName"]))
      {
        TrustVersion = TrustVersion.WSTrust13
      };
      
      RequestSecurityToken rst = new RequestSecurityToken
      {
        RequestType = RequestTypes.Issue,
        KeyType = KeyTypes.Symmetric,
        AppliesTo = new EndpointReference(ConfigurationManager.AppSettings["MediaManagerWebServiceAddress"]),
        DelegateTo = new SecurityTokenElement(new UserNameSecurityToken(@"API\UploadToolUser", ""))
      };
      
      RequestSecurityTokenResponse resp;
      return factory.CreateChannel().Issue(rst, out resp);
    }
    
    private static IMediaManager2011 GetClient(SecurityToken token)
    {
      var factory = new ChannelFactory<IMediaManager2011>("FederationEndpointHttps");
      return factory.CreateChannelWithIssuedToken(token);
    }
    
    public static IMediaManager2011 GetMediaManagerClient()
    {
      SecurityToken token = RequestSecurityToken();
      return GetClient(token);
    }
  }
}