Write JavaScript code for n8n Code nodes with data access and helpers.
npx skills add https://github.com/Yukine5377/common --skill ba-n8n-js-code
Please help me install this Agent Skill. Skill: ba-n8n-js-code Source: https://github.com/Yukine5377/common/tree/main/.cursor/skills/ba-n8n-js-code Command: npx skills add https://github.com/Yukine5377/common --skill ba-n8n-js-code
This guide helps business analysts and developers write reliable JavaScript code inside n8n Code nodes, addressing data extraction, transformation, API calls, and error handling.
Run a simple example that reads all items with $input.all(), transforms them, and returns [{json: result}] to proceed.
High-intent search queries and answers about installing and using this skill.
To extract data in an n8n Code node, use JavaScript access patterns like $input.all() for all items, $input.first() for the initial item, or $input.item for the current item, ensuring safe null checks during extraction.
The $helpers.httpRequest built-in helper executes HTTP requests for API integration inside n8n Code nodes, allowing you to fetch external data and handle responses directly within your JavaScript workflow customization.
Yes, you can use the built-in DateTime helper, which provides Luxon functionality for date manipulation, formatting, and calculations directly inside n8n Code nodes.
n8n Code nodes often fail processing webhook data due to unsafe null checks or incorrect return formats. You must understand webhook data structures and implement safe null handling to return stable outputs like [{json: result}].
The correct return format for n8n Code nodes is an array of objects containing a json key, such as [{json: result}], which ensures stable workflow execution and prevents downstream processing errors.
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