async-hooks-7.js

// index.js
const http = require('http');
const uuid = require('uuid');
const SomeResource = require('./some_resource');
const namespace = require('./node-request-context').createNamespace('some-namespace');
http.createServer(function (req, res) {    
   namespace.run(() => {
      const transactionId = uuid.v1();
      console.log('Setting a new transaction id => ', transactionId);
      namespace.set('tid', transactionId);

      console.log(namespace.get('tid'));

      const sr = new SomeResource();
      sr.get().then((ans) => {
         console.log(namespace.get('tid'));
         res.end(ans);
      }).catch((err) => {
          console.log('Error: ', err);
        })
   })

}).listen(8079);