Passport +JSON Web Tokens

JWT with passport:

var passport = require('passport');
var jwt = require('jsonwebtoken');

var middlewareMaker = function middlewareMaker(strategy){
    var middleware = function middleware(req,res,next){
        var customCallback = function customCallback(err,user,info){
            if(err)
                return next(err);
            else
            {
                return res.json('401',{
                    message:'Could not authenticate with '+strategy
                });
            }
            var token = jwt.sign(user,'keyboard cat');
            return res.json({
                token:token
            });
        };
        passport.authenticate(strategy,customCallback);
    };
    return middleware;
};

module.exports = middlewareMaker;