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Structure of the node base file#

The node base file follows this basic structure:

  1. Add import statements.
  2. Create a class for the node.
  3. Within the node class, create a description object, which defines the node.

A programmatic-style node also has an execute() method, which reads incoming data and parameters, then builds a request. The declarative style handles this using the routing key in the properties object, within descriptions.

Outline structure for a declarative-style node#

This code snippet gives an outline of the node structure. 

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import { INodeType, INodeTypeDescription } from 'n8n-workflow';

export class ExampleNode implements INodeType {
	description: INodeTypeDescription = {
		// Basic node details here
		properties: [
			// Resources and operations here
		]
	};
}
Refer to Standard parameters for information on parameters available to all node types. Refer to Declarative-style parameters for the parameters available for declarative-style nodes.

Outline structure for a programmatic-style node#

This code snippet gives an outline of the node structure. 

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import { IExecuteFunctions } from 'n8n-core';
import { INodeExecutionData, INodeType, INodeTypeDescription } from 'n8n-workflow';

export class ExampleNode implements INodeType {
	description: INodeTypeDescription = {
    // Basic node details here
    properties: [
      // Resources and operations here
    ]
  };

  async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
    // Process data and return
  }
};

Refer to Standard parameters for information on parameters available to all node types. Refer to Programmatic-style parameters and Programmatic-style execute method for more information on working with programmatic-style nodes.

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