elasticsearch-js/docs/reference/api/IngestConvertProcessor.md

IngestConvertProcessor [interface-IngestConvertProcessor]

Name	Type	Description
field	Field	The field whose value is to be converted.
ignore_missing	boolean	If true and field does not exist or is null, the processor quietly exits without modifying the document.
target_field	Field	The field to assign the converted value to. By default, the field is updated in-place.
type	IngestConvertType	The type to convert the existing value to.