Creating node with flow output port

I have a node that retrieves some information and pushes it as a flow variable to the further workflow. This node does not do anything with data, so it has no use for input or output ports.
I can activate the flow variable ports at the top of the node and connect them to the remaining workflow, but I would like to have my flow output as an explicit and documentable output port of flow type, just like the standard configuration nodes. Is this possible for custom nodes?


Hi @JS_KN,

Yes that is possible, you need to use the more generic constructor in NodeModel:

Take a look at this example from knime-python:



Thanks a lot, works now :slight_smile:

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