Expression to get parameter data does not work

Questions
,
1

I am experimenting with node development a little and wanted to add better description text to my expanded “Execute Workflow” node. Composite nodes - #10 by FelixL
I wanted to use something like:

subtitle: '={{"Workflow: " + $parameter["workflowId"]["cachedResultName"]}}'

But that does not work.
Following ts code works in the ts portion of the node

console.log(this.getNodeParameter('workflowId.cachedResultName', 0))

As i copied most of my code from the n8n API node, i tried it directly with the original n8n API node with an expression in n8n:

grafik
grafik1813×897 44.1 KB

The variable selector correctly shows the cachedResultName, like I would expect from the code in the node.
But even when it automatically generates the expression for “cachedResultName” it returns: [undefined]

Is there a workaround for that issue, or am I just overseeing something?

And an off-topic question, is it possible for a node to change its icon dynamically? Have not tried that yet, but that would be super cool ^^

Information on your n8n setup

  • n8n version: 0.225.2
  • Database (default: SQLite): SQLite
  • n8n EXECUTIONS_PROCESS setting (default: own, main): default
  • Running n8n via (Docker, npm, n8n cloud, desktop app): npm
  • Operating system: Win 11

EDIT: updated subtitle code (originally copied debugging code…)

2

Hey @FelixL,

What is the error you get when trying that? I am not sure why you would want to use console.log for the nodes subtitle it sounds like potentially a bad idea.

Dynamic icons is not something I have tried as it isn’t something we do with existing nodes so I wouldn’t expect it to work :slightly_smiling_face:

3

Hi @Jon, i just copied the false line, was trying to debug why it was not working -_-

Here is the correct line I’ve tried:

subtitle: '={{"Workflow: " + $parameter["workflowId"]["cachedResultName"]}}'

But that also does not work in the expression directly in n8n, even though the variable selector generates the expression like that.