n8n-expression-syntax

Access webhook payload data in n8n expressions by targeting the .body property of your webhook node. Validating this data access pattern ensures reliable data retrieval and prevents undefined values in your automated workflows.

The correct syntax for referencing other nodes in n8n workflows involves using proper node naming conventions and the appropriate expression variables. You must use quotes around node names containing spaces and avoid code node misuse to prevent workflow errors.

Handling arrays and objects in n8n expression syntax requires correct dynamic access methods within the {{ }} wrappers. Validating these data access patterns helps you avoid common mistakes and extract structured data accurately across your workflow nodes.

Your n8n webhook body access expressions are likely failing due to incorrect syntax or missing {{ }} wrappers. Validating your webhook data structure and ensuring proper .body access patterns will resolve these debugging headaches and restore data retrieval.

You should use static versus dynamic data access in n8n expressions depending on whether you need fixed values or live workflow data. Understanding this distinction enforces correct syntax usage and prevents common mistakes when referencing variables like $json or $node.