n8n-code-javascript

To return data from an n8n Code node without errors, you must format your output as an array of objects using the exact [{json: {...}}] structure. This format ensures the workflow correctly parses your JavaScript payload for downstream processing.

To access webhook payload data in an n8n Code node, you must navigate the specific webhook body structure. Extracting values requires correctly referencing the webhook data object to avoid undefined errors during your workflow automation.

Yes, you can make HTTP requests inside an n8n Code node by utilizing the built-in $helpers.httpRequest() method. This utility allows your JavaScript code to fetch external API data and integrate it directly into your workflow items.

The best way to handle date and time in n8n JavaScript is using the built-in Luxon DateTime library. It provides reliable DateTime parsing and manipulation within your Code nodes to ensure accurate timestamp transformations.

You read input items in an n8n Code node by using $input.all() to retrieve every item, $input.first() for the initial entry, or $input.item for the current iteration. You can also reference other nodes directly using $node.

Your n8n Code node likely fails when transforming multiple items due to missing null checks or an incorrect return format. Applying error-prevention patterns and enforcing the required [{json: {...}}] payload structure ensures robust workflow execution.