var userName = req.body.userName
    connection.connectedusers.updateMany({}, { $push: { connectArray: [userName] } }, { upsert: true }, function (err, docs) {
        if (err) {
            console.log(err);
        } else {
            connection.connectedusers.find({}, async (err, list) => {
                if (err) {
                    console.log(err);
                }
                else {
                    setTimeout(async () => {
                        if (list[0].connectArray.length >= 2) {
                            clearTimeout();
                            var shortListed = list[0].connectArray.slice(0, 2);
                            console.log(shortListed,'shortlisted array')
                            try {
                                await connection.connectedusers.update({},
                                    { $pull: { connectArray: { $in: shortListed } } },
                                    { multi: true }
                                )
                                const docs = await connection.connectedusers.find({});
                                res.json({
                                    message: 'users selected successfully',
                                    status: 1,
                                    docs: docs
                                 });
                            } catch (err) {
                                res.status(201).json(err);
                            }
                        } else {
                            const docs = await connection.connectedusers.find({});
                            console.log(docs, 'docs')
                            const allUsers = docs.connectArray;
                            console.log(allUsers, 'allUsers')
                            await connection.connectedusers.update({},
                                { $pull: { connectArray: { $in: allUsers } } },
                                { multi: true }
                            )
                            res.json({
                                message: 'users not selected',
                                status: 2,
                                docs: docs,
                                allUsers: allUsers
                            })
                        }
                    }, 10000);
                }
            });
        }
    })