I am using the solution to create my own virtual servers in the cloud. We use one of the servers to deploy the database for NoSQL database on MongoDB. MongoDB allows all types of databases.
Here is a more detailed explanation. I needed to deploy a backup API that was not in the project I needed it for. To back up the API is essentially treating data from the MongoDB database. Initially, we implemented it locally and tested all the endpoints, and then we deployed it to the AWS services. We needed this to be online and to communicate with the front end, which is an angular app that says you receive the data from another database which is another NoSQL.