What's the best practice for expressjs logging?

I am building an application based on expressjs and I'd like to log all events in it. I could find winston, which seems to be cool. Anyway, I am looking for a way how to connect it to my expressjs app.

What I also want is logging inside the application. My reqeusts are not so simple, so I'd like to log everything inside my app (not only requests).

My current situation:

server.js (I'd like to log http requests on this level)

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


// Post parser
app.configure(function(){
app.use(express.bodyParser());
});


// Load routes
require('fs').readdirSync(__dirname + '/routes').forEach(function(file) {
require(__dirname + '/routes/' + file)(app);
});


// 404: Not found
app.use(function(req, res, next){
res.json(404, {ERROR: 'Page not found.'});
});


// 500: Error reporing
app.use(function(err, req, res, next){
console.error(err.stack);
res.json(500, {ERROR: 'Internal server error.'} );
});


// Startup new server
app.listen(900);

routes/something.js

var something = require(__dirname + '/../controller/something.js');


module.exports = function(app) {
app.get('/v1/something', function(req, res, next) { new something().getAll(req, res, next); });
};

controller/something.js (I'd like to use the same logger for debug logging)

/**
* Constructor
*
*/
function Something() {
};


/**
* Get all the data
*
*/
Something.prototype.getAll = function(req, res, next) {
// I want to log some very important information here
res.json({result: true, data: ['hello', 'hi', 'ciao', 'buf']});
}


module.exports = Something;

The other thing I am thinking about is logging all the events in functions that are called from controllers (e.g. models or other libraries).

So I think, the good way might to create some logger library, that will be called using:

var logger = require(__dirname + '/../libraries/logger.js');

containing logger definition. The other issue I don't know how to solve is how to prefix data. You know, I have a lot of concurrent requests and I'd like to see which debug message was called by each request.