using mongodb for flask session without proper index causes session update failure

Question

If there are no index, session update doesn't seem to work and login fails. After setting index for id field, everything works fine. I wonder is this because response ended the thread and killed the mongo connnection?

Answer 1

I had a similar error when Sessions tried to update mongo.

line 456, in save_session
    self.store.update({'id': store_id},

Turns out it was because the update method it was calling doesn't exist after pymongo v4.0. I downgraded with

pip install pymongo:3.12.3

And now I have sessions stored in mongo:)