Best regards,
Victor

I then tried to create a script that returns a specific custom attribute and used that in a DCI: all good.
Now I want to use this on a whole range of custom attributes - but don't want one script per attribute. Rather I want to pass the name of the attribute to fetch to the script. That way one script can return any custom attribute value, all I need to do is pass the name to the script macro.
But that doesn't work.
Not sure if scripts can't take parameters, if the macro doesn't handle passing them to the script or I'm missing something (again)?

Thanks

I have done the following:

• Configured a (Linux) node with a custom attribute called "testParameter", value is "Hello World".
• Created a script called "GetAttribute", which returns the value for that attribute:

sub main()
{
	return GetCustomAttribute($node, "testParameter");
}

• Running the same code via Execute Server Script against the node returns "Hello World".
• Configured an ExternalParameter on the node as follows:

ExternalParameter = HelloWorld(*):echo $1

• Created a DCI called "TESTING", with following Parameter: HelloWorld(%{script:GetAttribute}) (I tried it like that, with single and double quotes).

I expected to see the DCI return "Hello World", but instead I see "%{script:GetAttribute}", i.e. the Macro is not being interpreted at all? Guess I'm still missing something? 

You can not currently access node's Custom Attributes directly from the DCIs, but with an intermediary script you can do it.

So in your DCI, you would define it like this:

MyDCI.Name("string_abbrib", %{script:get_node_attrib})

Then create the script "get_node_attrib" in the Script Library that will return the Custom Attribute you desire.