I am using Redis as session store and I would also like to create custom session id with express-session
. So far I achieved was creating session with constant string like this:
redis configuration
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var compression = require('compression');
var session = require('express-session');
var redis = require('redis');
var RedisStore = require('connect-redis')(session);
var routes = require('./routes/index');
var api = require('./routes/api');
var app = express();
var client = redis.createClient();
// compress all requests
app.use(compression())
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(session({
secret: 'SECRET',
resave: false,
saveUninitialized: false,
store: new RedisStore({ host: 'localhost', port: 6379, client: client}),
cookie: {
maxAge: 60000
},
genid: function(req) {
return "myApiKey";
}
}));
app.use('/', routes);
app.use('/request_api', api);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
which creates keys in redis like below:
127.0.0.1:6379> keys *
1) "sess:myApiKey"
However, I could not generate unique id with uuid
as mentioned in doc here session-store github.
I have tried inserting session value in my index routes file (routes/index.js
) like this
/* GET home page. */
router.get('/', function(req, res, next) {
req.session.user = "12345";
res.render('index', { title: 'MyApp' });
});
But could not read value inside genid
function due to value undefined
.
So, my question is:
Can I generate session id with uuid
of any model like user->uuid
? If yes, how can I do it?
Thanks, any help will be appreciated.
You can do like this.
var crypto = require('crypto');
var uuid = require('node-uuid');
You need to require node-uuid and then in genid function
genid:function(req){
return uuid.v1();
},
or to avoid id collision
genid:function(req){
return crypto.createHash('sha256').update(uuid.v1()).update(crypto.randomBytes(256)).digest("hex");
},
You can access session id anywhere in the application by req.sessionID
.