validation-js-config-example.js

class Worker {
    /**
     * @constructor
    */
  constructor() { Worker._metacodeValidate(); }

    /**
     * Checks all related configs
     * #validator
     *
     * @private
    */
  static _metacodeValidate() {
        if(Worker._metacodeValidated){
            return;
        }
        assert.ok(configs.engineSettings, `Worker: engine_settings.json wasn't loaded`)
        assert.ok(configs.dbConnection, `Worker: db_connection.json wasn't loaded`)

        Worker._metacodeValidated = true;
    }
    /**
     * @private
     * @static
    */
    static _metacodeValidated = false;
}