Hello,
using nodeJS driver and found that it is missing cursor.readConcern() method.
which is described here:
is it another correct way to specify readConcern for queries?
I advise my developers to honor this from the provided mongouri option.
I am not particularly experienced with the node driver but you can see the MongoClient class has readConcern option available.
https://mongodb.github.io/node-mongodb-native/3.5/api/MongoClient.html