Calling a Dynamics AX WCF service from .NET Core

wcf-example.cs

// old way:
        public async Task RunAsync()
        {
            CallContext context = new CallContext();
            context.Company = "axcompany";
            string pingResp = string.Empty;
            var client = new XYZPurchInfoServiceClient();
            var rv = await client.wsPingAsync(context);
            pingResp = rv.response;
            Console.WriteLine("Ping response: {0}", pingResp);
        }
/* app.config:
    <system.serviceModel>
        <bindings>
            <netTcpBinding>
                <binding name="NetTcpBinding_XYZPurchInfoService" />
            </netTcpBinding>
        </bindings>
        <client>
            <endpoint address="net.tcp://myserver:8201/DynamicsAx/Services/XYZPurchInfoServices"
                binding="netTcpBinding" bindingConfiguration="NetTcpBinding_XYZPurchInfoService"
                contract="XYZPurchInfoSvcRef.XYZPurchInfoService" name="NetTcpBinding_XYZPurchInfoService">
                <identity>
                    <userPrincipalName value="myservice@corp.local" />
                </identity>
            </endpoint>
        </client>
    </system.serviceModel>
*/

// new way:
	CallContext context = new CallContext();
	context.Company = "axcompany";
	string pingResp = string.Empty;
	var client = new XYZPurchInfoServiceClient(GetBinding(), GetEndpointAddr());
	var rv = await client.wsPingAsync(context);
	pingResp = rv.response;
	Console.WriteLine("Ping response: {0}", pingResp);
	
	private NetTcpBinding GetBinding()
	{
		var netTcpBinding = new NetTcpBinding();
		netTcpBinding.Name = "NetTcpBinding_XYZPurchInfoService";
		netTcpBinding.MaxBufferSize = int.MaxValue;
		netTcpBinding.MaxReceivedMessageSize = int.MaxValue;
		return netTcpBinding;
	}

	private EndpointAddress GetEndpointAddr()
	{
		string url = "net.tcp://myserver:8201/DynamicsAx/Services/XYZPurchInfoServices";
		string user = "myservice@corp.local";

		var uri = new Uri(url);
		var epid = new UpnEndpointIdentity(user);
		var addrHdrs = new AddressHeader[0];
		var endpointAddr = new EndpointAddress(uri, epid, addrHdrs);
		return endpointAddr;
	}