Opc.Ua.DiscoveryChannel.Create C# (CSharp) Method

        public static ITransportChannel Create(
            Uri discoveryUrl,
            BindingFactory bindingFactory,
            EndpointConfiguration endpointConfiguration,
            ServiceMessageContext messageContext)
        {
            // create a dummy description.
            EndpointDescription endpoint = new EndpointDescription();

            endpoint.EndpointUrl = discoveryUrl.ToString();
            endpoint.SecurityMode = MessageSecurityMode.None;
            endpoint.SecurityPolicyUri = SecurityPolicies.None;
            endpoint.Server.ApplicationUri = endpoint.EndpointUrl;
            endpoint.Server.ApplicationType = ApplicationType.DiscoveryServer;

            ITransportChannel channel = CreateUaBinaryChannel(
                null,
                endpoint,
                endpointConfiguration,
                (System.Security.Cryptography.X509Certificates.X509Certificate2)null,
                messageContext);

            // create a WCF XML channel.
            if (channel == null)
            {
                Binding binding = bindingFactory.Create(discoveryUrl.Scheme, endpointConfiguration);

                DiscoveryChannel wcfXmlChannel = new DiscoveryChannel();

                wcfXmlChannel.Initialize(
                    endpoint,
                    endpointConfiguration,
                    binding,
                    null);

                channel = wcfXmlChannel;
            }

            return channel;
        }

        /// <summary>
        /// Creates a binding for to use for discovering servers.
        /// </summary>
        /// <param name="discoveryUrl">The discovery URL.</param>
        /// <param name="endpointConfiguration">The endpoint configuration.</param>
        /// /// <param name="applicationConfiguration">The application configuration.</param>
        /// <returns></returns>
        public static DiscoveryClient Create(
            Uri discoveryUrl,
            EndpointConfiguration endpointConfiguration,
            ApplicationConfiguration applicationConfiguration)
        {
            if (endpointConfiguration == null)
            {
                endpointConfiguration = EndpointConfiguration.Create();
            }

            // check if application configuration contains instance certificate.
            X509Certificate2 clientCertificate = null;

            try
            {
                if (applicationConfiguration != null &&
                    applicationConfiguration.SecurityConfiguration != null &&
                    applicationConfiguration.SecurityConfiguration.ApplicationCertificate != null)
                {
                    clientCertificate = applicationConfiguration.SecurityConfiguration.ApplicationCertificate.Find(true).Result;
                }
            }
            catch
            {
                //ignore errors
            }

            ITransportChannel channel = DiscoveryChannel.Create(discoveryUrl, endpointConfiguration, new ServiceMessageContext(), clientCertificate);

            return(new DiscoveryClient(channel));
        }