Types of custom structures and enums

[danmoser]

Hi folks,
Is there a way to set the nodeset "HasTypeDefinition" to match the contents of the "Value" field (see the image link)?
Running the server-custom-structures-and-enums.py example, all created nodesets have the "BaseDataVariableType"...

For some reason, I'm unable to upload the image here ("Something went really wrong, and we can't process that file").
Figure
In example of the figure, I need to have MyStruct in the HasTypeDefinition field.

I'm running one application that is reading that definition to decode the nodeset contents (if it is a custom one).

Thanks!

[schroeder-]

I think you mix something up. HasTypeDefinition in the case of a Variable means, you provide a VariableType on the server as Template. In your case you can create a MyStructVariableType and add HasTypeDefinition to your variable.
In the server-custom-structures-and-enums.py like this:

    valtype = server.nodes.base_variable_type.add_variable_type(idx, f"{idx}:MyStructVariableType", snode1)
    val = await server.nodes.objects.add_variable(idx, "my_struct", ua.Variant(ua.MyStruct(), ua.VariantType.ExtensionObject))
    val.add_reference(valnode, ua.ObjectIds.HasTypeDefinition, val)

[danmoser]

Thank you @schroeder- !!
Indeed my question was confusing, but you understood what I needed. I found some typos in your answer, so for reference I'm posting what worked for me:

    valtype = await server.nodes.base_variable_type.add_variable_type(idx, f"{idx}:MyStructVariableType", snode1.nodeid)
    val = await server.nodes.objects.add_variable(idx, "my_struct", ua.Variant(ua.MyStruct(), ua.VariantType.ExtensionObject))
    await val.add_reference(valtype, ua.ObjectIds.HasTypeDefinition)
    await val.delete_reference(ua.ObjectIds.BaseDataVariableType, ua.ObjectIds.HasTypeDefinition)