Is there any Mongodb Data backup utility

I am working on mean.JS application, need to provide data backup and restore functionality for user I've come across [mongodb-backup][1] but i've issue in using this, backup file is storing in a folder where code is executed i.e __dirname is there any alternative option for storing back-up file in any other location

var backup = require('mongodb-backup');
backup({
        uri: 'uri',
        root: __dirname,
        // write files into this dir
        callback: function(err) {
            if (err) {
                console.error(err);
            } else {
                console.log('finish');
            }
        }
    });

via Srinivas