Validators

TBD - create a language agnostic spec, and force all impl to support custom validators

{
    "$service+": {
        "name": "$name:identifier"
    },
    "@types": {
        "identifier": {
            "type": "string",
            "range": {
                "min": 1, 
                "max": 5
            }
        }
    }
}

const jc = require('json-concepts');

jc.options.addValidator('range', function(value, args) {
    return value.length >= args.min && value.length <= args.max;
});