Map to List

The Map to List function iterates through each key in an object, creating a list as output. There's one item in the new list for each key in the input object.

For each key in the input object, the helper flow executes with the key name and the corresponding value. After selecting a helper flow from the Select Flow dialog, you can pass the key and value fields using the dropdown choices in the With the following values section.

The output of the helper flow should match whatever type is specified for the new list output field.

Input Fields

Field Definition Type Required
For each item in this list
object Object to process. Object TRUE
Run this Flow
Helper Flow Helper flow to process each key and value pair. Flow TRUE
With these options
concurrency Number of keys that are processed in parallel. Number FALSE
With the following values
Inputs Dynamically generated inputs defined by the helper flow. Use the dropdown to specify which input receives the key and which receives the value. Various TRUE

Output Fields

There's one output list item for each key and value pair in the input object.

Field Definition Type
new list The new list formed by the key and value pairs from the helper flow. List


You want to convert a single object into a list of objects, where each key and value pair converts to an object that has propertyname and propertyvalue keys. You also want to add a text prefix called custom: to the propertyname value.

You can do that with a helper flow that accepts key, value, and a constant prefix. The helper flow returns an object with two keys and the prefix added.

Parent flow

Helper flow

Input object
Input object
{ "this": "that", "up": "down", "left": "right" }
Output list
Output list
"propertyname": "custom:this",
"propertyvalue": "that"
"propertyname": "custom:left",
"propertyvalue": "right"
"propertyname": "custom:up",
"propertyvalue": "down"

Related topics

Functions in Workflows

Elements of Workflows