Error: req.flash() requires sessions

Question

I'm new to node and I'm pretty sure I've set up the middle ware and express to use flash messaging however I still get the error:

Error: req.flash() requires sessions

Setup

//express.js
     var flash = require('connect-flash')

     module.exports = function (app, config, passport) {
         app.use(flash());
     };

//route js
     exports.loginGet = function (req, res) {
       res.render('users/login', {
         title: 'Login',
         message: req.flash('error') //error in question
       });
     };

What else can I do to make sure I have everything set up correctly and get it working?

Answer 1

In my case the issue was that Redis was not listening. I found that out by enabling the logErrors property:

new RedisStore({
  host: 'localhost',
  port: '6379',
  logErrors: true,
});

Which resulted in messages like these:

Warning: connect-redis reported a client error: Error: Redis connection to localhost:6379 failed - connect ECONNREFUSED 127.0.0.1:6379

Answer 2

i was having these issues and I solve them by respecting the cascading

app.use(passport.initialize());
app.use(passport.session());
//SESSION FLASH
app.use(flash());