Create Array of Objects Using Function Nodes

This workflow showcases a simple yet powerful technique in n8n for creating and manipulating arrays of objects using the Function node. It starts with a 'Mock Data' Function node that outputs three sample items, each containing a JSON object with 'id' and 'name' properties (e.g., Jim, Stefan, Hans). The second 'Create an array of objects' Function node then aggregates these items into a single output item, where 'data_object' holds the full array of all incoming JSON objects.

The benefits are clear for developers and automators: it teaches how to bypass per-item processing limitations of other nodes, enabling custom JavaScript logic to reshape data efficiently. This saves time on data preparation tasks, reduces node count in complex workflows, and provides a reusable pattern for batching or nesting data without external services.

Ideal use cases include preparing data for API payloads, email marketing lists (e.g., compiling customer arrays for Mailchimp), reporting dashboards, or any scenario needing dynamic array creation from scattered inputs. It's perfect for beginners learning n8n's code capabilities and pros optimizing transformations.

Extend it by replacing mock data with real inputs from triggers like webhooks or databases, making it versatile for production automation in marketing, IT, or dev tools.