n8n-expression-syntax

To fix n8n expression syntax errors, validate your double-curly-brace syntax and ensure correct referencing of variables like $json, $node, $now, and $env. This process identifies common mistakes and provides clear corrections to build robust workflows.

n8n webhook data structure places incoming payload information under the .body property. You reference this data in expressions using the syntax {{$json.body.name}} to accurately access and pass webhook payloads within your workflow fields.

n8n expressions use double-curly-brace syntax to reference variables like $json in standard workflow fields, whereas Code node data access involves direct JavaScript data manipulation. Separating these usage patterns prevents common misusage and workflow errors.

Your n8n expression is likely not working due to incorrect double-curly-brace syntax or invalid node references. Validating frontmatter requirements and checking the catalog of common mistakes helps diagnose and resolve these specific data access errors.

Yes, you can use environment variables and timestamps in n8n workflow expressions by referencing $env and $now. Validating these references ensures frontmatter requirements are met and provides practical examples for reliable workflow automation.