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The “Recursively copy values to children” transformer can copy a value from an entity to a nested/child property within the same entity data. It does so recursively if the nested/child property contains the same properties. For example, it allows to copy a product identifier from a main product to a list of sub products.

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Fields

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Pattern to children within a parent

A required field. The path in the entity data where to copy to data to.

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Mapping of values from parent to child

A required field. The data structure to copy to the children/nested data. Supports placeholders to reference data from the parent.

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Keep using the context from the first level

Determines whether the placeholders will reference data from the parent, or from the current child element.

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Sample data

Input data: 
{ 
  "product": "T-Shirt", 
  "identifier": 1234, 
  "variants": [ 
    { 
      "name": "Red" 
    }, 
    { 
      "name": "Blue" 
    } 
  ] 
}
Pattern to children within a parent: variants.* Mapping of values from parent to child: 
{ 
  "parent": "&{identifier}" 
}
Keep using the context from the first level: Yes Output: 
{ 
  "product": "T-Shirt", 
  "identifier": 1234, 
  "variants": [ 
    { 
      "name": "Red", 
      "parent": 1234 
    }, 
    { 
      "name": "Blue", 
      "parent": 1234 
    } 
  ] 
}