Data structure#
In n8n, all data passed between nodes is an array of objects. It has the following structure:
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Skipping the json
key and array syntax
From 0.166.0 on, when using the Function node or Code node, n8n automatically adds the json
key if it's missing. It also automatically wraps your items in an array ([]
) if needed. This is only the case when using the Function or Code nodes. When building your own nodes, you must still make sure the node returns data with the json
key.
Data item processing#
Nodes can process multiple items.
For example, if you set the Trello node to Create-Card
, and create an expression that sets Name
using a property called name-input-value
from the incoming data, the node creates a card for each item, always choosing the name-input-value
of the current item.
For example, this input will create two cards. One named test1
the other one named test2
:
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