Flask-Pymongo not connecting to online mongodb

[King-Del-ErnestO]

It keeps returning none when uri is passed, and when mongo.cx is passed, mongo.save_file not working.

What's wrong what's happening?
Please can you help!

[JEdmario16]

Try to use mongo.cx.db instead mongo.db. It worked for me.

[edit]
Looking at the documentation, I realized that "mongo.db" only exists if a db is passed in the url. If you use the connection snippet that atlas provides, "mongo.db" will always be None unless a db is passed.