An Express demo that shows usage of multiple session types in a single application.

multi-session-type.js

var express = require('express')
var app = express()
var session = require('express-session')
const port = 8000

// session for local clients
var s1 = session({ name: 'one', secret: 'abc'})

// session for remote clients
var s2 = session({ name: 'two', secret: 'def'})

app.get('/', (req, res, next) => {
  // Instead of attaching to the express app,
  // invoke the appropriate session middleware
  // based on your conditions. In the callback
  // the request object will have the session
  // object attached to it.
  
  // Remeber to save the session before responding
  
  // Condition to select the right session
  if(req.headers.host === `localhost:${port}`){
    s1(req, res, () => {
      if(!req.session.localViews){
        req.session.localViews = 1
      } else {
        req.session.localViews++
      }
      req.session.client = 'local'
      req.session.save(() => {
        res.send(`Hello ${req.session.client} client! visits: ${req.session.localViews}`)
      })
    })
  }
  else {
    s2(req, res, () => {
      if(!req.session.remoteViews){
        req.session.remoteViews = 1
      } else {
        req.session.remoteViews++
      }
      req.session.client = 'remote'
      req.session.save(() => {
        res.send(`Hello ${req.session.client} client! visits: ${req.session.remoteViews}`)
      })
    })
  }
})

app.listen(port)