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Although C is the last letter in MVC,

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I'm gonna start with it first
because it runs the show.

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C stands for controller, and it handles
a the communication between a user and

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the various parts of an application.

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For example a, user wouldn't talk
directly to the database on IMBb.com.

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Instead, they would
visit a page like this.

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The URL is known as a route, and

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represents a request to see information
on the classic movie Toy Story.

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The URL is routed to the controller.

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Remember, the controller handles all
of the communication in the app.

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The controller then knows
that it needs some data.

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So it requests information
about the movie.

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On a complex web application, you may
need to create multiple controllers,

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each to handle a different
type of request.

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For example, one controller to handle
logging in and out of the website.

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Another controller to handle requests for
movie data.

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Or a handler to process requests from
users who want to download movie files.

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There are more steps to the process,
which I'll discuss in the next videos.

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But at this point,
keep in mind that controllers act

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as an interface between a user and
the behind the scenes magic of an app