How to display data only which can populate[mongoose]

Question

Is possible to display details from collection where has inside population role: '4edd40c86762e0fb12000002' ?

recommendModel.find({
        userId: userId
    })
            .populate('recommendedBy',{role: '4edd40c86762e0fb12000002'})
            .exec(handle().many.bind(null, 'message', res));

So for result where populate return null I also don't need record from recommendModel.find for that

Answer 1

If I'm understanding your question correctly you could perform a filter after your populate in your .exec. Check out this answer for more details on the implementation.