browser_fingerprint

Uniquely identify browsers

browser_fingerprint

This module attempts to uniquely identify browsers by examining their header and connection information. This information can be used as a "poor-man's" session identifier in your node projects. This module can optionally set a cookie to 'lock' in a consistent fingerprint.

Resuming sessions require that either the cookie be returned to the server, or a x-header x-__browserFingerprint in the default case, be sent on subsequent requests

var http = require('http');
var bf = require('browser_fingerprint');
 
// these are the default options 
var options = {
cookieKey: "__browserFingerprint",
toSetCookie: true,
onlyStaticElements: false,
settings: {
    path: '/',
    expires: 3600000,
  }
};
 
http.createServer(function (reqres) {
bf.fingerprint(req, options, function(fingerprintelementHashcookieHash){
cookieHash['Content-Type'] = 'text/plain' // append any other headers you want 
res.writeHead(200, cookieHash);
var resp = "";
resp += 'Your Browser Fingerprint: ' + fingerprint + "\r\n\r\n";
for(var i in elementHash){
resp += "Element " + i + "" + elementHash[i] + "\r\n";
}
res.end(resp);
console.log('requset from ' + req.connection.remoteAddress + ', fingerprint -> ' + fingerprint);
});
}).listen(8080, '127.0.0.1');
 
console.log('Server running at http://127.0.0.1:8080/' + '\r\n');