n8n Code & Expressions

Master n8n's expression syntax and code capabilities.

Expression Syntax

Expressions in n8n use {{ }} or ={{ }} syntax to reference data dynamically.

Core Variables

$json - Current Item Data

// Access fields from current item
{{ $json.name }}                    // Direct field
{{ $json.user.email }}              // Nested field
{{ $json["field-name"] }}           // Fields with special chars
{{ $json.items[0].id }}             // Array access