Number (number)

{
    "fields": {
        "name": { "…": "as before" },
        "age": {
            "cms": {
                "column": true
            },
            "integer": true,
            "max": 120,
            "min": 0,
            "optional": true,
            "type": "number"
        }
    }
}

The second field age is an integer (integer) between 0 (min) and 120 (max), both inclusive. Specifying it is voluntary (optional). This field also appears in the list (column). The order in the description determines the order of the columns: age is to the right of name.

Parameters

From fastest-validator:

Parameter	Meaning
optional	field may be missing (default false)
min	smallest allowed value
max	largest allowed value
integer	integers only

CMS-specific: localizable (value per language).