BSON field ‘listCollections.collation’ is an unknown field

Question

I just started having this weird issue with my db.createCollection calls using the collation option. Though this section of my codebase had been in operation and untouched for years, it is now failing. I just noticed that the db.createCollection succeeds when the collation option is removed. But for these collections, the collation option is critical.

I am using the following call:

db.createCollection(collectionName, {
    collation: {
        locale: 'en_US',
        strength: 2
    }
});

And getting this error:

MongoError: BSON field 'listCollections.collation' is an unknown field.
at MessageStream.messageHandler (C:\projectsjs\fourmatic\node_modules\mongodb\lib\cmap\connection.js:261:20)
    at MessageStream.emit (events.js:209:13)
    at MessageStream.EventEmitter.emit (domain.js:476:20)
    at processIncomingData (C:\projectsjs\fourmatic\node_modules\mongodb\lib\cmap\message_stream.js:144:12)
    at MessageStream._write (C:\projectsjs\fourmatic\node_modules\mongodb\lib\cmap\message_stream.js:42:5)
    at doWrite (_stream_writable.js:428:12)
    at writeOrBuffer (_stream_writable.js:412:5)
    at MessageStream.Writable.write (_stream_writable.js:302:11)
    at TLSSocket.ondata (_stream_readable.js:722:22)
    at TLSSocket.emit (events.js:209:13) {
  ok: 0,
  code: 40415,
  codeName: 'Location40415',
  '$clusterTime': {
    clusterTime: Timestamp { _bsontype: 'Timestamp', low_: 3, high_: 1647996433 },
    signature: { hash: [Binary], keyId: [Long] }
  },
  operationTime: Timestamp { _bsontype: 'Timestamp', low_: 3, high_: 1647996433 },
  name: 'MongoError'
}

Can anyone let me know why this issue just suddenly started happening with the collation option?

Answer 1

Migrating to the latest version of MongoDB NodeJS driver corrected the issue. I am assuming certain breaking changes recently occurred either in Atlas cloud server or in the MongoDB engine.