The haplo:string-to-ref value filter converts the string representation of a Haplo Ref to a Ref value which can be used to load and refer to other objects.


Your input data might include the Haplo Ref of existing objects. To convert it into a Ref which can then be used by a load Instruction, use:

    "source": "PERSON_REF",
    "destination": "load:by-ref",
    "name": "ref",
    "filters": ["haplo:string-to-ref"]