continuation-local-storage example

cls-example.js

var cls = require('continuation-local-storage-glue');
var http = require('http');
var uuid = require('uuid').v4;
var local = cls.createNamespace('reqNS');

http.createServer(function(req, res) {
    req._id = uuid();
    local.run(function() {
        local.set('id', req._id);
        next(req, res);
    });
}).listen(3030);

function next(req, res) {
    process.nextTick(function() {
        var ns = cls.getNamespace('reqNS');
        var id = ns.get('id');

        if (id === req._id) {
            console.log(id);
        } else {
            throw new Error(id + ' !== ' + req._id);
        }

        res.end('');
    });
}

console.log('* Listening on http://127.0.0.1:3030');