Simple pretty printer addition for the console.

prettyPrinter.js

var express = require('express'),
    app = express();

app.use(function (req, res, next) {
    req.prettify = function(json) {
        json = json || this.body;
        return console.log(JSON.stringify(json, null, 2));
    };
    next();
});

The you can call req.prettify(); or req.prettify({JSON}); (anywhere) to see the object (req.body) nicely printed in the console.