Error:Connection strategy not found!

I was trying to use MongoStore with native mongodb driver. This is how my configuration looks liks

//  imports
const express = require('express');
const session = require('express-session');
const mongoClient = require('mongodb').MongoClient;
const MongoStore = require('connect-mongo')(session);

//  express app
const app = express();

//  connecting to mongodb

mongoClient.connect('url', options, (err, client) => {
 if (err) {
    console.log('MongoDB connection error.');
    return;
  }
//  connection successful

  console.log(client.isConnected(), 'isConnected'); //getting 'true'

//   setup express session once connected to db

  app.use(session({
    name: 'mysession',
    store: new MongoStore({ client }),
    secret: 'SESSION_SECRET',
    touchAfter: 24 * 3600,
    resave: false,
    saveUninitialized: false,
    cookie: { maxAge: 1000 * 60 * 15 },
  }));

// finally listening to port 8080

 app.listen(8080,console.log('listening'));
  });

I’m connected to the database successfully but when I pass the instance of MongoClient to the MongoStore I’m getting an error saying Connection strategy not found .

I also looked into the source code to see the options MongoStore is accepting and it has these two checks options.client && options.client.isConnected() before handling the core-mongo connection which are true in this case.

I’m not sure what I’m doing wrong here. It’s working fine with the mongoose though.

[popod]

HI, same error for me after updating to latest connect-mongo version (I use latest mongoose version).

Change property db by client then throw this error:

TypeError: mongoose.connection.isConnected is not a function

Any idea to resolve this ? thanks

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