I have a raw HTTP request string from which I need to create an object representation.

Instead of reinvent the wheel I was thinking about use the internal http parser to get an instance of http.IncomingMessage

Is it possible?

I think so because string is not so different from a complete stream.

How to do it?

I had a look on source code and they get a request parser as follow

var HTTPParser = process.binding('http_parser').HTTPParser;
var parser = new HTTPParser(HTTPParser.REQUEST)

Edit

Some progress from a node.js test

var request = Buffer(raw);
var parser = new HTTPParser(HTTPParser.REQUEST);

parser.execute(request, 0, request.length);

Edit 2

Some eventHandlers were missing (all of them)

parser.onHeadersComplete = function(res) {
    console.log('onHeadersComplete');
    console.log(res);
};

parser.onBody = function(body) {
    console.log('body done');
    console.log(body.toString());
}

parser.onMessageComplete = function(res) {
    console.log('done');
};

Thanks