Split Out

processing.split-out Processing v0.1.0

Splits an array field into separate items — one output item per element, optionally keeping the other fields of the source item.

The Split Out step on the Studio canvas
The Split Out step as it appears on the Studio canvas — input pins on the left, output ports on the right.

Finding it in the library

Search the builder's node library for Split Out (it lives under Processing). A single click opens the in-editor docs panel shown here — description, ports, and every property, without leaving the canvas. Double-click (or drag) to add it to the workflow.

Split Out in the node library, with the in-editor docs panel open
The library entry and the in-editor docs panel for Split Out — the same reference this page is generated from.

Wired up in the builder

Split Out in a real, runnable flow — captured live from the Studio editor, exactly as it looks on your canvas. This is the same workflow used for the example input & output below.

Split Out wired into a runnable workflow in the Studio builder
Split Out wired into a runnable flow — input on the left, output on the right.

How it’s configured

The node’s Configure panel as it opens in the builder when you select the step — every setting laid out with real values. Click any field to edit it.

The Split Out node's Configure panel in the Studio builder
The Configure panel for Split Out, showing the settings from the flow above.

Ports

Ports are the node’s contract with its neighbours. In the editor a port label renders bold when wired and italic when optional; ports accept attachment carriers rather than data wires.

DirectionPortLabelWhat flows through it
InputinputInput
OutputoutputItems

How data flows through it

Split Out consumes the content of the incoming envelope — when it is fed directly by a trigger, the trigger’s wrapper is unwrapped at the node boundary so the node sees the actual data, not the metadata shell. Its output becomes the payload for the next node, while the envelope (trace ids, correlation, binary refs) rides along untouched. In the Runs view you always see the whole envelope for both sides of this node.

Expressions in the config

String-typed properties accept {{ }} expressions evaluated against the incoming item at run time — e.g. {{ $json.customer.email }}. On this node that’s destinationField. JSON- and code-typed fields never interpolate — they are passed through literally.

Build it with AI

Every node in this reference is reachable through Flowdrome’s AI Copilot and the MCP tools — say what you want, and the graph surgery happens server-side. Node types resolve fuzzily, so the catalog label (Split Out) works as well as the exact type id (processing.split-out).

In the Copilot panel (or any connected AI):

add a split out node after the trigger

As a step in a create_chain_workflow call:

{"type":"Split Out","config":{}}
Raw MCP call — add this node to a workflow with add_node
curl -s -X POST http://localhost:48170/mcp -H "content-type: application/json" -d '{ "jsonrpc": "2.0", "id": "1", "method": "tools/call", "params": { "name": "add_node", "arguments": { "workflowId": "<id>", "type": "Split Out" } } }'

Example input & output

Captured from a real test run of the workflow above — this is what you see in the run data panel after pressing Test workflow.

Input — what the node received

The Split Out node's input envelope in the run data viewer
The input envelope in the Runs view — Flowdrome always shows the whole envelope, with the payload inside body.

Output — what the node produced

The Split Out node's output envelope in the run data viewer
The output envelope after the step ran.

Property reference

Every setting, with its type and default — the same fields shown configured in the panel above.

PropertyTypeDefaultDescription
Field to split out
field
field "items" Array field inside each item to split out, e.g. body.items — pick from the data flowing in. One output item per element; items without the array are skipped.
Include
include
select "none" No other fields = each output item is just the element. All other fields = keep the rest of the item, with the element spread over it.
allOtherFieldsnone
Destination field
destinationField
string Field to put each element under. Leave blank to make the element the item itself (objects spread at the root).

Related nodes

The rest of the Processing group — the same folder you’d scan in the editor’s library.

This page is generated from the node registry by gen-node-docs.mjs on every site build — ports, properties, defaults and visibility rules cannot drift from the code. The screenshots and example data are captured from a live Flowdrome by npm run shots:nodes and npm run gen:examples.