Tiny Node.js web server that echoes any data you POST/PUT/send to it. Useful for debugging purposes.

server.js

var http = require('http');
http.createServer(function (req, res) {
  var postedData = '';
  req.on('data', function(data) { postedData += data.toString(); });
  req.on('end', function() {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end(postedData);
    console.log(postedData);
  });
}).listen(8080, '127.0.0.1');
console.log('Server running at http://127.0.0.1:8080/');