sessionvoc-client is client for a secure, reliable, external session database, the SessionVOC. The SessionVOC is a noSQL database optimized for the management of user sessions. Additionally, the SessionVOC establishes security mechanisms that are difficult to implement with other session management systems (see http://www.worldofvoc.com/ for details).

via npm:

$ npm install sessionvoc-client

var svc = require('sessionvoc-client');
var client = svc.createClient().on('ready', function() {console.log('ready for business');});

client.createSession(function(err,data) {console.log("sid = " + data);});