Enhance Your n8n Code Nodes with Intellisense
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Streamline your n8n Code node development with this example that demonstrates how to enable powerful Intellisense. This workflow helps you write more accurate and efficient JavaScript by providing intelligent code suggestions and type checking directly within your custom logic.
About This Workflow
Tired of guessing object properties when writing JavaScript in n8n's Code nodes? This practical workflow template empowers you to bring robust Intellisense directly into your custom code. By utilizing JSDoc-style type definitions and inline casting, you can explicitly inform the n8n editor about the structure of objects like Workflow and Node. This drastically improves the development experience, making it easier to navigate complex data, reduce syntax errors, and accelerate the creation of sophisticated custom automation logic. It's an indispensable tool for any developer looking to optimize their n8n workflow creation.
Key Features
- Leverages JSDoc for defining custom type structures within Code nodes.
- Demonstrates inline casting to enable Intellisense for dynamic data (
$input.first().json). - Accesses and processes current workflow metadata (
$workflow.id,$workflow.name,$workflow.nodes) via the n8n API. - Provides a clear example of iterating through workflow nodes with type-aware suggestions.
- Outputs results dynamically into an n8n Form node for easy visualization.
How To Use
- Activate the Workflow: Run the "On form submission" node, then click the provided webhook URL to trigger the workflow.
- Observe the Output: A "Display Results" form will open, showing details of the current workflow and its nodes, demonstrating the Code node's output.
- Inspect the Code Node: Open the "Code With Intellisense" node.
- Understand JSDoc: Notice the
/** @typedef ... */comments at the top, defining theNodeandWorkflowobject structures. - See Inline Casting: Locate the line
const wf = /** @type {Workflow} */ ($input.first().json);. This explicitly tells the editor thatwfis of typeWorkflow. - Experience Intellisense: Place your cursor after
wf.ornode.(within the loop) and trigger suggestions (e.g., Ctrl+Space or Cmd+Space). You will now see relevant properties and methods forWorkflowandNodeobjects. - Customize and Extend: Modify the JSDoc types and the JavaScript code to fit your specific needs, always benefiting from the enhanced Intellisense.
Apps Used
Workflow JSON
{
"id": "b2455e18-62be-4105-903e-bfae41a33ef0",
"name": "Enhance Your n8n Code Nodes with Intellisense",
"nodes": 8,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: b2455e18-62be...
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