Session with mongodb storage in express js

 1. app.js

import express from 'express'
import web from './routes/web.js'
import session from 'express-session'
import connectDb from './db/connectdb.js'
import MongoStore from 'connect-mongo'
const app = express()
const port = process.env.PORT || '3000'

const Database_Url = process.env.Database_Url || "mongodb://localhost:27017"

connectDb(Database_Url)

//Mongo DB Session.
const sessionStore = MongoStore.create({
    mongoUrl:Database_Url,
    dbName:"school22",
    collectionName:'sessions',
    ttl:14*24*60*60, //session time
    autoNative: 'native'


})


//session
app.use(session({
    name:'SessionGreek',
    secret:'Iamkey',
    resave:false,
    saveUninitialized:true,
    cookie:{maxAge:20000},
    store:sessionStore

}))

//load routes
app.use('/',web)

app.listen(port,()=>{
    console.log('Server Connected Successfully.')
})


2. Controllers/studentContollers.js


class studentController {
   
  //make sesion count
  static session_example = (req, res) => {
    //set device and use in another function ..
    req.session.device = "mobile";
    if (req.session.count) {
      req.session.count++;
    } else {
      req.session.count = 1;
    }
    res.send(`count: ${req.session.count}`);
  };

  static get_session_data = (req, res) => {
    if (req.session.device) {
      res.send(
        `device: ${req.session.device} and count: ${req.session.count} `
      );
    } else {
      console.log("not find device..");
    }
  };
}

export default studentController;


3.db/connectdb.js


import mongoose from "mongoose"

const connectDb = async (Database_Url) => {  
    try{
        const DB_OPTIONS = {
            dbname: 'school22' ,
        }

        await mongoose.connect(Database_Url,DB_OPTIONS)
        console.log('Connected Successfully...')
    }
    catch(err){
       console.log('err')
    }
}

export default connectDb


4.routes/web.js


import express from 'express'
const router = express.Router()

import studentController from '../controllers/studentController.js'

router.get('/getsessioncount',studentController.session_example)
router.get('/getsessiondata',studentController.get_session_data)

export default router

Comments

Post a Comment

Popular posts from this blog

Interview question laravel.

 1. for table use  protected $table = "mytablename" ; 2. difference between post  from web and api . sol. @csrf token 3.  diff web.php and api.php  sol. https://koenwoortman.com/laravel-difference-between-web-and-api-routes/ 4. many to many relation 5. patch and put = multiple column update in put and update single column in patch . 6.  show single variable in all view files. sol: https://stackoverflow.com/questions/32683069/how-to-make-a-variable-available-to-all-my-pages-in-laravel 7. how many table use in one to one                                           one to many                                           many  to many  
Read more

My Sql Query ..

 1.  select product_id from products where low_fats = 'Y' && recyclable = 'Y' ; 2. select name from customer where referee_id != 2 || referee_id is null ; 3. select name, population , area from world where area > 3000000 or population > 25000000 ; 4. select distinct author_id as id from Views where author_id = viewer_id order by id; 5. select tweet_id from tweets where char_length (content) > 15 ; 6. select unique_id, name from Employees left join EmployeeUNI on Employees.id = EmployeeUNI.id; 7. select customer_id , count (visits.visit_id) as count_no_trans from visits left join transactions on visits.visit_id = transactions.visit_id where transaction_id is null group by customer_id; 8. SELECT w1.id FROM Weather w1, Weather w2 WHERE DATEDIFF(w1.recordDate, w2.recordDate) = 1 AND w1.temperature > w2.temperature;
Read more