Should I use curly braces in n8n Code nodes?

No, n8n Code nodes use standard JavaScript (e.g., $json.field) without the double curly braces used in standard expression fields.

Why isn't my n8n expression working in the workflow?

Ensure your expression is wrapped in double curly braces {{ }} and check that you are accessing the correct path. For example, webhook data is located under $json.body rather than the root.

How do I reference an n8n node that has spaces in its name?

Use bracket notation with quotes: {{$node["My Node Name"].json.field}}. Remember that node names are case-sensitive.

How do I format dates using n8n expressions?

n8n uses Luxon for dates. You can use $now.toFormat('yyyy-MM-dd') or perform math like $now.plus({days: 7}) within your double curly braces.

n8n Expression Syntax Expert

Name: n8n Expression Syntax Expert
Author: echoleesong

byecholeesong

생산성 및 워크플로

Validates and optimizes n8n expression syntax to ensure seamless data flow in automated workflows.

소개

This skill serves as a comprehensive guide and validator for n8n expressions, helping developers and automation specialists write bug-free code within their workflows. It covers essential syntax rules like double curly braces, proper variable referencing using $json and $node, and common pitfalls such as the nested structure of webhook data. Whether you are debugging current nodes or referencing historical data across complex automation sequences, this skill provides the patterns and best practices to prevent runtime errors and ensure reliable data mapping.

주요 기능

Validates n8n expression syntax using double curly braces
Identifies common errors like missing quotes for nodes with spaces
Guides correct patterns for accessing $json, $node, and $env variables
Distinguishes between expression syntax and direct JavaScript usage in Code nodes
0 GitHub stars
Explains proper webhook data structure and accessing the .body property

사용 사례

Troubleshooting 'undefined' or 'invalid syntax' errors in n8n workflow nodes
Formatting dynamic timestamps and performing math operations within n8n nodes
Mapping raw webhook payloads to specific fields in external APIs or databases

소개

주요 기능

Validates n8n expression syntax using double curly braces
Identifies common errors like missing quotes for nodes with spaces
Guides correct patterns for accessing $json, $node, and $env variables
Distinguishes between expression syntax and direct JavaScript usage in Code nodes
0 GitHub stars
Explains proper webhook data structure and accessing the .body property

사용 사례

Troubleshooting 'undefined' or 'invalid syntax' errors in n8n workflow nodes
Formatting dynamic timestamps and performing math operations within n8n nodes
Mapping raw webhook payloads to specific fields in external APIs or databases