$("<node-name>").item not working in IF node?

[EmeraldHerald]

Hi @GBOL Sorry you’re running into this!

Edit: Just had a peek into some issues other users have been running into.

$('Node name').item and $node["Node name"] do different things, so this might be what’s causing some confusion The legacy expression $node["node name"] would reference items from a previous node by item index, whereas $('node name').item makes uses of item linking (previously called item pairing). Item pairing is not new functionality related to v1, item pairing was first introduced with n8n 0.180 around a year ago.

v1 also now throws this error to make you aware of a problem that was previously present in your expression, as it’s expecting a different data structure. My teammate @MutedJam explained this in another thread here:

1.0.5 - docker n8nio:latest ERROR: No data found for item-index: "1" - There's no item index?

This expression preview would be shown for the first of your input items (with index 0), for which the expression would still work. It’s only failing for the second item (with item index 1) because your SSH Test connectivity node only produces a single item. The expression itself still works, it just isn’t suitable for your specific data structure as I’ve tried to explain earlier. v1 throws an error now making you aware of this problem, whereas previous versions would seem to simply return an …

Can you try out the expression {{ $('webhook').first().json.body.is_test }} and see if that works? If not, can you please share a workflow that doesn’t require any outside credentials / has sample data that we can look into?