Hey all,
My company is using Nim and MongoDB. Unfortunately the nim mongodb driver is quite behind. We would like to get it working for MongoDB 4.0 with GridFS, specifically. If anyone would like to do this, it'd be cool to see! I'm open to sponsoring the effort as well as a long-term effort to get us away from using MongoDB's HTTP API.
For reference, this is the nimongo repo: https://github.com/SSPkrolik/nimongo
https://github.com/SSPkrolik/nimongo/pull/81 there, added for limited elementary functionalities for GridFS.
Unfortunately I never intensively used mongo except for simplest CRUD and those GridFS features only tested on Windows, very likely you need to test for Linux and/or Bsd variants.
My Mongodb version is 4.0.5