ConnectMongoOption field client doesn't work with mongoose in TypeScript

[riflowth]

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  [ ] feature request
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• Summary
  I have tried to get client connection from opening connection by call mongoose.connection.getClient() to use on client field of ConnectMongoOptions but my vscode give me an error.

import MongoStore from 'connect-mongo';
import mongoose from 'mongoose';

MongoStore.create({
  client: mongoose.connection.getClient(),
  collectionName: 'sessions',
  ttl: 14 * 24 * 60 * 60,
  autoRemove: 'native'
});

• Other information (e.g. detailed explanation, stack traces, related issues, suggestions how to fix, links for us to have context, eg. StackOverflow, personal fork, etc.)

My vscode show this error

Type 'MongoClient' is missing the following properties from type 
'MongoClient': options, serverApi, autoEncrypter, readConcern, and 3 more.

[pararell]

There is a problem with type Promise<MongoClient> for the clientPromise, it is in the same code as example in typescript:
https://github.com/jdesboeufs/connect-mongo/blob/master/example/mongoose.js
It would be useful to add all examples to typescript, that should prevent these issues.
Now here I have to use any to prevent the issue:

  const clientP: any = mongoose.connect(process.env.MONGO_URI, {
      useNewUrlParser: true,
      useUnifiedTopology: true,
  }).then(m => m.connection.getClient());

[huineng]

i got the above working since a long time without any issue. But today mongoose release v 6.0.0 and now i have an incompatibility issue

store: MongoStore.create({
            client: mongoose.connection.getClient(),
            stringify: false,
}),

Type 'import("/node_modules/mongoose/node_modules/mongodb/mongodb").MongoClient' is not 
assignable to type 'import("/node_modules/mongodb/mongodb").MongoClient'.
  The types of 'options.autoEncrypter' are incompatible between these types.
    Type 'import("/node_modules/mongoose/node_modules/mongodb/mongodb").AutoEncrypter | undefined' is 
not assignable to type 'import("/node_modules/mongodb/mongodb").AutoEncrypter | undefined'.ts(2322)
MongoStore.d.ts(15, 5): The expected type comes from property 'client' which is declared here 
on type 'ConnectMongoOptions'
(property) client?: MongoClient | undefined

and i'm not sure if these needs to be solved by mongoose or by connect-mongo

i'm ignoring it for now as i did not see any differences and all still works

store: MongoStore.create({
            // @ts-ignore TS2322
            client: mongoose.connection.getClient(),
            stringify: false,
        }),

[huineng]

Is it possible to update mongodb to 4.1.1. there are differences between the 2 packages https://github.com/mongodb/node-mongodb-native/releases/tag/v4.1.1. thanks

[mingchuno]

Hi guys. Sorry for the late reply. Does moving mongodb to peerDependency help solve the issue?
Link to #434

[mingchuno]

4.6.0 released

[MaxMansfield]

@mingchuno I'm still seeing this issue with MongoDB set as a peerDep. I removed and reinstalled npm packages too.

"mongoose": "^6.2.3"
"connect-mongo": "^4.6.0"

"mongodb": "^4.4.1"

Any thoughts?