HTTP proxy in 5 minutes

proxy.js

var http = require('http');

var server = http.createServer(function(req,res) {
  var opts = {
    method: 'GET', host: 'news.ycombinator.com', port: 80, path: req.url
  };

  var proxyReq = http.request(opts, function(proxyRes) {

    var chunks = '';
    proxyRes.on('data', function(chunk) {
      chunks += chunk;
    });

    proxyRes.on('end', function() {
      var modified = chunks
        .replace(/Hacker News/g, "Hax0r N3ws")
        .replace(/ comments?/g,' jibber-jabber');
      res.end(modified,'utf8');
    });

    res.writeHead(proxyRes.statusCode, proxyRes.headers);
  });

  proxyReq.end();
});
server.listen(8888);

server.js

var http = require('http');

var server = http.createServer(function(req,res) {
  res.writeHead(200,{'content-type':'text/plain'});
  res.write("it's now "+new Date());
  res.end();
});
                                                              
server.listen(8888, 'localhost');