How to change namespace url of variable?

[VasilyBroze]

When I create variable, it's reserve id (i) for it, and then url for taking value looks like /example.freeopcua.io/*i.
Can I use name of variable instead of this id? (like /example.freeopcua.io/Light1)
Can it be customized?

[schroeder-]

You can read the namespace array via get_namespace_array on the server or client.
Also in OPC UA you always have the namespace + the identifer. As Identifer you can also use a string.

idx = await server.get_namespace_index("/example.freeopcua.io")
ua.NodeId("Light1", idx)

or this

ua.NodeId("/example.freeopcua.io/Light1", idx)

[VasilyBroze]

Thanks for answer!
I create variables like this:
idx = server.register_namespace(uri)
myobj = objects.add_object(idx, "MyObj")
myobj.add_variable(idx, "Light1", 0.0, ua.VariantType.Float)
and standard identifer is integer number like /example.freeopcua.io/1 but not /example.freeopcua.io/Light1 (log prints n=1, i=1)
as I understand it, the method that you described above changes the Node ID to string, but not the Variable ID, right?
Can I change identifer of variable?

[schroeder-]

You can pass a nodeid instead of the namespace index:
myobj.add_variable(ua.NodeId("Light1", idx), "Light1", 0.0, ua.VariantType.Float)
Or like this:
myobj.add_variable(f"ns={idx};s=Light1", "Light1", 0.0, ua.VariantType.Float)
or like this:
myobj.add_variable("ns=1;s=Light1", "Light1", 0.0, ua.VariantType.Float)

[VasilyBroze]

Thank you! It's works :)