This library is a CGI adaptor for node.js

It is designed to help people run node.js websites off of a shared server (CGI is so old it's available almost everywhere).

You'll have to create a .htaccess file that rewrites everything to a CGI script:

Options +ExecCGI
AddHandler cgi-script cgi

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule (.*) server.cgi

Copy cgi.js to the same directory and make the actual CGI script (server.cgi in this example):

#!/usr/bin/env node

var cgi = require('./cgi');

var server = cgi.createServer(function(request, response) {
    response.writeHead(200, {'Content-Type': 'text/plain'});
    response.write('This is CGI!');
    response.end();
});
server.listen();

As you can see, using the cgi library is very similar to the http library in node.js