This fill will dump raw post data to the console. An enhancement would be to use middleware to grab all posts.

dumper.js

var express         = require('express')
  , http            = require('http')
  , bodyParser      = require('body-parser')
  , _               = require('underscore')
  , cookieParser    = require('cookie-parser');

var app = express();

/* configure express */
app.set('port', process.env.PORT || 3000);

app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(cookieParser());

app.use(function(req,res,next) {
  console.log("Request", _.pick(req, 'headers', 'method', 'url', 'query', 'body'));
  res.send("ok");
  next();
});

http.createServer(app).listen(app.get('port'), function() {
    console.log("MLC iExpress server listening on port " + app.get('port'));
});