Function selective_digest

pub fn selective_digest(
    data: &JsValue,
    keep_properties_list: &str,
) -> Result<String, JsValue>

Returns a canonical string representation of a JSON document, in which any sub-objects not explicitly listed in the second argument are collapsed to their digest. The format of the second argument is inspired by JQ basic filters and these are some examples:

{
    "a": {
        "1": "apple",
        "2": "banana"
    },
    "b": ["some", "array", 0xf, "values"],
    "c": 42
}

• “” -> Same as calling {@link digestJson}
• “.a” -> Keep property “a” untouched, the rest will be replaced with their digest. Note that most likely the scalar number “c” does not have enough entropy to avoid a brute-force attack for its digest.
• “.b, .c” -> Keeps both properties “b” and “c” unaltered, but “a” will be replaced with the digest of that sub-object.

You should protect scalar values and easy-to-guess lists by replacing them with an object that has an extra “nonce” property, which has enough entropy. @see wrapJsonWithNonce