GxSoapHandlers mechanism for extending Location Data type

A Soap service is consumed from an environment with the Use Native Soap property set to True. Also, a mechanism is provided that allows you to do something similar to the location data type, extending its functionalities without the need to load this type of data with language specifics.

.NET 

Allows you to modify or add data in a SOAP service request to add credentials and certificates, change URLs, etc.
For example, to change the URI Service of a Web Service that will be called you can follow the steps below:

1. Configuration

For this implementation to take effect, you must edit the web.config and add the line. 

    <add key="NativeChannelConfigurator" value="GxSoapHandler"/>

2. GeneXus code

You must also set a Configuration (NonStandard) property to the location data type, and there send the necessary parameters that you want to add/modify, either as a string, SDT, or object.
In this case, to change the URI of the service, go to this Configuration property and program something like this:

    &location = GetLocation("WS_eFactura")
    &location.Configuration= "https://efactura.dgi.gub.uy:443/efactura/ws_efactura". //passing the NewUriService

    // Load a sample Invoice
    &pWS_eFacturaData.xmlData.FromString("")
    &pWS_eFacturaDataResult = &WS_eFactura.EFACRECEPCIONSOBRE(&pWS_eFacturaData)
    &longvar = &pWS_eFacturaDataResult.ToXml()

3. Building the Assembly

An assembly called GxSoapHandler.dll will be invoked before the service call and this is where the parameters sent by the GeneXus program will be overwritten.
It must be created and deployed; to do so, check the repo GxSoapHandlerNet and Build/Run the GxSoapHandler.csproj, taking the following considerations into account:

1. Include a reference to KBNamespace.Programs.Common.dll in GxSoapHandler.csproj and replace ISdtWS_eFacturaDummy in GxSoapHandler.cs with the correct web service name.

2. Edit the GxSoapHandler.cs; for example, if you only want to overwrite the URL, you can program it like this:

   using System;
   using System.ServiceModel;
   using GeneXus.Programs;
   using GeneXus.Utils;
   using System.ServiceModel.Description;
   
   public class GxSoapHandler
   {
       public void Setup( string eoName, GxLocation loc, object serviceClient)
       {
           if (eoName == "WS_eFactura" ) 
           {
               string NewUriService = loc.Configuration.ToString();
               ClientBase<ISdtService1> svc = serviceClient as ClientBase<ISdtService1>;
               svc.Endpoint.Address = new System.ServiceModel.EndpointAddress(NewUriService);  //changes the service URI
           }
       }
   }

3. Build the assembly with one of the following commands:
   

   msbuild /t:restore;build /p:Configuration=Release dotnet\src\extensions\ws\src\GxSoapHandler\GxSoapHandler.csproj 

   or
   

   dotnet build -c Release dotnet\src\extensions\ws\src\GxSoapHandler\GxSoapHandler.csproj 

4. Copy dotnet\src\extensions\ws\src\GxSoapHandler\bin\Release\net462\GxSoapHandler.dll to the web\bin folder.

Troubleshooting

If the following error appears at Build time: 

 error NU1105: Unable to find project information for 'C:\...\DotNetClasses\dotnet\src\dotnetframework\GxClasses\GxClasses.csproj'.

Open the Visual Studio console and run a restore command of this project.

JAVA

It allows you to add data to the SOAP request, for example, to send a SAM-L token for authentication.

This is implemented through an external jar. If the classpath contains a class called com.genexus.util.GXSoapHandler, a static method of that class called setHandlers will be invoked before the service call.
 
This method has the following parameters:

public static void setHandlers(Integer remoteHandle, com.genexus.ModelContext context, String serviceName, javax.xml.ws.BindingProvider bProvider)

Download a sample project: https://github.com/genexuslabs/GxSoapHandlerJava