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Before we dive into the actual code, there's one important thing you have to know and that is that

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you have to understand how the work between management of the database, probably through the shell and interacting

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with the database through the driver,

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how these two parts are separated or split up, how you split the work.

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Now for the shell,

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so what we used in this course, you'll typically stay to the shell for things like configuring the database,

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creating collections or creating indexes because these are tasks which you typically do up front,

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so when you set up the backend for your application. You don't really do that right from inside the

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driver because the driver is tightly coupled to your application, to your application logic

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and if you're building an online shop for example, your code will basically be responsible for handling

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products, users, for working with orders and things like that.

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The initial database setup is not something your application deals with, 

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it assumes that the database is there and that you can then communicate with the database.

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So this whole setup stuff will be done from inside a shell or basically up front. From inside the driver,

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so from inside your application so to say, you typically perform these different crud operations to store

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new data in the database or retrieve or update or delete it and you might also work with the aggregation

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pipeline to, well fetch data in a more structured way

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if your application requires that and the data format in a database doesn't fit the format you need it in,

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so this is how you can roughly split the responsibilities.

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Now technically you can absolutely create collections and indexes from inside the driver,

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so that is possible

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but with that, why don't we just have a look at all of that in an example application which I prepared

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and where we can now continue to work on.