Map Keys For Each

The Map Keys For Each action renames or moves paths in every object in a list. It preserves list order and returns newly copied objects.

Inputs

Input	Type	Required	Description
Array	List of objects	Yes	The objects to transform.
Key Mappings	Mapping entries	No	Old and new path pairs applied to each item.
Old Key	String	Per entry	The existing key or nested path.
New Key	String	Per entry	The destination key or nested path.

Output	Type	Description
Result	List of objects	The transformed objects in their original order.

Map first_name to name for:

[
  { "first_name": "Ada", "id": 1 },
  { "first_name": "Grace", "id": 2 }
]

The result is:

[
  { "name": "Ada", "id": 1 },
  { "name": "Grace", "id": 2 }
]

Nested paths are supported, and missing old paths are skipped for only the objects that lack them.

Mappings run in order on each object. Existing destination values can be overwritten, and overlapping mappings can affect one another.