I have created a Python Custom Node and works really well. Can you create a custom node that does not require an input table (or any input)? I am creating a node that just log into a portal and pass on a token.
Welcome to the KNIME forum!
Yes, that works. Just remove all input port decorators and adapt the parameters of the
execute methods (You don’t even need an output port).
@knext.node( name="No Port Python Node", node_type=knext.NodeType.MANIPULATOR, icon_path="icon.png", category=node_category, ) class NoPortNode: """No port node """ def configure(self, config_ctx): return def execute(self, exec_context): exec_context.flow_variables["foo"] = "bar"
Thanks, that worked great. Is there only two types of @knext outputs e.g., binary and table. I need to pass a cookie onto the following node. Do I convert the cookie to a binary object and then the reverse when I use it.
Yes. There are only table ports and binary ports for now. Therefore, you need to serialize everything that isn’t a table to a binary blob.
With the next release of KNIME AP, we will add API to define your custom port types. Stay tuned for that.
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