Data structures between nodes in n8n

Basics for using n8n

• Array of objects
• Expressions must use JavaScript.
• Items, Item

• Creating multiple items from one item

return $input.all().map(item => {
	return {
		json: item
	}
});

• Creating a single item from multiple items

  return [
    {
      json: {
        data_object: $input.all().map(item => item.json)
      }
    }
  ];