The standard pre-read request control may be included in a delete, modify, or modify DN request to indicate that the server should return a response control with a copy of the entry as it appeared immediately before the changes were applied. The control has an OID of, and it takes a value. The following fields may be present in the value-json representation of the value:

The following sample shows the JSON encoding for the control:

    "oid": "",
    "control-name": "Pre-Read Request Control",
    "criticality": false,
    "value-json": {