AI Agent - chat history error on using sessionId from previous node

Questions
2

Hi @ypyly

I was able to replicate the error and found that you’re using an old legacy expression syntax: $node["Node Name"]

Please switch to the current standard syntax $("<node-name>").item which is working as expected:

So in your case, for the Postgres Chat Memory key, try updating your syntax to:

{{ $('set_params').item.json.sessionId }}

Also, since other nodes in your workflow are still using the legacy syntax, I recommend updating those as well to avoid similar errors in the future.


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