n8n Expression Syntax

Expert guide for writing correct n8n expressions in workflows.

When to Use

• You need to write or debug n8n expressions using {{ ... }} syntax.
• The task involves $json, $node, webhook payloads, or expression-related workflow errors.
• You want syntax-correct dynamic values inside n8n nodes and parameters.

Expression Format

All dynamic content in n8n uses double curly braces:

{{expression}}