Something like this should work:
var express = require('./node_modules/express');
var app = express.createServer();
app.use (function(req, res, next) {
var data="";
req.setEncoding('utf8');
req.on('data', function(chunk) {
data += chunk;
});
req.on('end', function() {
req.body = data;
next();
});
});
app.post("https://stackoverflow.com/", function(req, res)
{
console.log(req.body);
});
app.listen(80);