Express session is undefined when accessing from different route? - node.js

Question

Im trying to implement infinite scroll. In my first route I load 5 elements from the data base and store the id of the last seen item. To load more data getNextHomeContent is called, but for some reason req.session.lastseen is undefined.
server.js
var express = require('express');
var session = require('express-session');
var app = express();
var mongoose = require('mongoose');
var logger = require('morgan');
var bodyParser = require('body-parser');
var cors = require('cors');
//imports database configuration
var databaseConfig = require('./config/database');
//defines route file to use
var router = require('./app/routes');
//connect to datbase
mongoose.connect(databaseConfig.url);
app.listen(process.env.PORT || 8080);
console.log("App listening on port 8080");
app.use(bodyParser.urlencoded({ extended: false })); // Parses urlencoded bodies
app.use(bodyParser.json()); // Send JSON responses
app.use(logger('dev')); // Log requests to API using morgan
app.use(cors());
app.use(session({
resave: true,
saveUninitialized: true,
secret: 'keyboard cat',
cookie: {
maxAge: 60000,
secure: false
}
}));
router(app);
And here is my controller for my routes in homeCtrl.js
exports.getHomeContent = function(req, res, next) {
req.session.lastseen = null;
homeContent.find({})
.sort({
"_id": -1
})
.limit(5)
.exec(function(err, content) {
if (err) {
res.send(err);
}
var last = content.slice(-1);
req.session.lastseen = last[0]._id;
console.log("lastseen first is " + req.session.lastseen);
res.json(content);
});
}
exports.getNextHomeContent = function(req, res, next) {
console.log("lastseen is " + req.session.lastseen);
homeContent.find({
"_id": { "$lt": req.session.lastseen }
})
.sort({
"_id": -1
})
.limit(5)
.exec(function(err, content) {
if (err) { res.send(err); }
console.log("WTF:" + content.slice(-1));
var lastitem = content.slice(-1);
req.session.lastseen = lastitem[0]._id;
res.json(content);
});
}
When get Home content runs, req.session.lastname is set to the ID of the last item. However req.session.lastitem becomes undefined when getNextHomeContent() runs. Can anyone help me with this?
Thanks!!