Hello_trace_node.js

var tv = require('traceview');
tv.traceMode = 'always';
// Load the http module to create an http server.
var http = require('http');

// Configure HTTP server to respond with Hello World to all requests.
var server = http.createServer(function (request, response) {
  response.writeHead(200, {"Content-Type": "text/plain"});
  response.end("Hello World\n");
});

// Listen on port 8000                          
server.listen(8000);

// Put a friendly message on the terminal
console.log("Server running at localhost:8000/");