Convert Array to Array of Objects in n8n

This workflow showcases a simple yet powerful technique to convert a flat array within a single n8n item into an array of individual objects. Starting with mock data containing an array like ['item-1', 'item-2'], the Function node maps over it, producing separate items each with a structured object {data: 'item-X'}. This is ideal for workflows where incoming data arrives as a nested array but needs to be processed item-by-item by downstream nodes.

The primary benefit is flexibility in data manipulation: unlike standard nodes, the Function node allows custom JavaScript to alter the number of output items, enabling splitting, aggregating, or transforming data dynamically. It saves time by avoiding complex expressions or multiple nodes, making it efficient for developers handling API responses or CSV imports.

Use cases include preparing list data from webhooks (e.g., GitHub issues or email lists) for looping operations, normalizing JSON arrays for database inserts, or chaining to tools like Split In Batches. In enterprise settings, it's valuable for ETL processes in IT/development pipelines, ensuring data flows seamlessly without manual scripting outside n8n.

Customization is straightforward: replace mock data with real inputs and adapt the JS code for your schema, such as adding keys or filtering items.