upload.js

//modified from https://github.com/felixge/node-formidable
var UPLOAD_DIR = "./";
var PORT = 8000;

var formidable = require('formidable'),
    http = require('http'),
    util = require('util');

var server = http.createServer(function(req, res) {
  switch(req.url) {
  case "/":
    showUploadForm(req, res);
    break;
  case "/upload":
    handleUpload(req, res);
    break;
  }
})

function showUploadForm(req, res) {
  res.writeHead(200, {'content-type': 'text/html'});
  res.end(
    '<form action="/upload" enctype="multipart/form-data" method="post">'+
    '<input type="text" name="title"><br>'+
    '<input type="file" name="upload" multiple="multiple"><br>'+
    '<input type="submit" value="Upload">'+
    '</form>'
  );
}

function handleUpload(req, res) {
  if (req.method.toLowerCase() == 'post') {
    // parse a file upload
    var form = new formidable.IncomingForm();

    form.uploadDir = UPLOAD_DIR;

    form.on('fileBegin', function(name, file) {
          file.path = form.uploadDir + "/" + file.name;
        })

        .on('error', function(err) {
          throw err;
        });

    form.parse(req, function(err, fields, files) {
      res.writeHead(200, {'content-type': 'text/plain'});
      res.write('received upload:\n\n');
      res.end(util.inspect({fields: fields, files: files}));
    });

  }
}

server.listen(PORT);