n8n-code-javascript

To access input data in an n8n Code node, use $input.all() for batch processing in Run Once for All Items mode, $input.first() for single results, or $input.item for per-item logic in Run Once for Each Item mode.

The correct return format for n8n Code node JavaScript is an array of objects containing a json property, such as [{json: {...}}]. Always returning this standard structure prevents workflow execution errors.

To make HTTP API requests inside an n8n workflow, use the built-in $helpers.httpRequest() method within your Code node. This helper handles external data fetching without needing separate HTTP Request nodes.

Webhook data fails to process in an n8n Code node when you do not extract it from the body property. Access incoming webhook payloads through the .body object to ensure proper data structure parsing.

Yes, you can use Luxon DateTime for date handling in n8n. The Code node environment includes DateTime as a built-in global, allowing direct date manipulation and formatting without external imports.

The best way to query JSON data in an n8n Code node is using the built-in $jmespath helper. It applies JSON querying expressions directly to your input items for flexible data transformation.