Set Node outputting something different than what the JSON previews the output should be

Feature Requests Nodes
1

I’m having trouble with this one Set node where it’s outputting something different than what the preview is showing me. Not sure if this is a bug or if I’m doing something wrong. Can anybody take a look and let me know?

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2

Hi, @maud97
Just I recommend you to post such questions under “Question Category” so, the members will find the problem soon,
you posted using “tips” subcategory, anyway I’ll take a look

3

Try the following;

const parserOutput = $input.all()[0].json;  // get all items from Lllama Parser
return parserOutput.map(item => ({
  json: {
    job_id: item.id,
    fileName: item.fileName
  }
}));
  • This ensures all items are mapped correctly.
  • Set Node sometimes fails when multiple items are involved or expressions point to missing fields.

you can use:

// Get all items from previous node (Lllama Parser)
const items = $input.all();

// Map over each item to generate job_id
return items.map(item => ({
  json: {
    job_id: item.json.id,       // adjust path if 'id' is nested
    fileName: item.json.fileName // optional
  }
}));