Javascript return value in N8N Action

[salimhb]

I'm trying to build an automation as described in the docs https://docs.budibase.com/docs/n8n#passing-budibase-array-to-n8n
I'm facing an issue similar to #7719, however the solution in that discussion does not work. Whatever I try, the steps.javascript.value is empty. I verified this by wrapping it as a string:

This fails with the error "Invalid payload JSON" in Data Out.

{
  "rows": {{ steps.javascript.value }}
}

alternatively wrapped the value as a string

{
  "rows": "{{ steps.javascript.value }}"
}

The request passes and in N8N, the rows value is empty:

{
  "rows": ""
}

[mikesealey]

Hey @salimhb - I've answered your support email, but for better visibility, I think it's also worth replying here in case anyone else is also coming up against this issue.

Having explored it a little bit, I think the issue is simply the capitalisation of JavaScript in the JSON

Using a capital J and S in JavaScript is successful

But using lowercase as you've written above seems to fail in the same way you state.

In order to take some guess-work out of it, I've added a feature-request to make that input bindable, meaning you could use the Lightning Bolt icon to click on the available bindings instead of having to type them out. #16557

[salimhb]

It looks like there's a bug. Thanks @mikesealey for posting the issue #16557

For now, the workaround is

{
  "rows": {{ steps.JavaScript.value }}
}

Renaming the Javascript step is not supported and must be references with steps.JavaScript.value (see #16557 (comment))