How to use Django with Azure's CosmosDB?
There's a fork that supports MongoDB as a Django database:
https://github.com/django-nonrel/mongodb-engine
You just need to select the MongoDB Api in your Azure Cosmos DB.
mongodb-engine seems dead, but I found djongo, which seems to be active:
https://github.com/nesdis/djongo
It's a connector that lets you use Django with MongoDB without changing the Django ORM.
You would need to configure your Azure Cosmos DB for MongoDB.