Feature Request: Support MongoDB version 4.0

[dmskdlghs213]

Hi,

According to the official document, MongoDB supports 3.2 or 3.4 for both Single User and Master User. I would like to use MongoDB 4.0 to build DocumentDB, So, it would be nice if the lambda to be rotated could also support version 4.0.

[whygoyal]

Thank you for your feedback. We have noted this as a feature request.

[julian-alarcon]

Is there any estimated time for this? It's been a while.

[julian-alarcon]

I just tested the current script for the Single rotation scenario and it works for DocumentDB with MongoDB 4.0 compatibility (docdb 4.0.0)!

I am using pymongo version 3.12.3 (BTW, after a lot of testing, the pymongo version used when set the rotation using the AWS Web Console by the current AWS is 3.2), but there is an error with pymongo 4+, this is what AWS Lambda shows using that newer version:

[ERROR] TypeError: 'Collection' object is not callable. If you meant to call the 'authenticate' method on a 'Database' object it is failing because no such method exists.
Traceback (most recent call last):
  File "/var/task/lambda_function.py", line 77, in lambda_handler
    set_secret(service_client, arn, token)
  File "/var/task/lambda_function.py", line 158, in set_secret
    conn = get_connection(pending_dict)
  File "/var/task/lambda_function.py", line 304, in get_connection
    conn = connect_and_authenticate(secret_dict, port, dbname, use_ssl)
  File "/var/task/lambda_function.py", line 377, in connect_and_authenticate
    db.authenticate(secret_dict['username'], secret_dict['password'])
  File "/var/task/pymongo/collection.py", line 3164, in __call__
    "exists." % self.__name

From this, maybe we should change the title or open a new ticket asking for the support of pymongo 4+

[jbct]

Closing this issue since DocumentDB with MongoDB 4.0 compatibility works with the 3.x recommended version of pymongo. If you have a need for pymongo 4, please open a separate issue indicating the need for this newer library.