ASP.NET Core MVC is a lightweight presentation framework for creating dynamic websites with ASP.NET Core. It allows for creating controller based MVC sites, or view model based Razor pages. MVC includes features like routing, model binding and validation, filters, web APIs and the Razor view engine.

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There's a LOT of interesting and intense arguments that have been made around how you should version your Web API. As soon as you say RESTful it turns into a religious argument.

Every bit of functionality you build into your app can be built as a component that can take inputs, provide outputs and be rendered at multiple places in your app.

ASP.NET Core includes the native ability to modify how an application behaves (and what it displays) based upon the environment it is currently executing in. This ends up being quite useful, since now we can do things as simple as not showing the error page to people using the application in a production environment. But it requires just a tiny bit of setup, and some knowledge of how environments are controlled.

Take small features and build them, using baby steps. Keep the complexity to a minimum; do the least work possible to get something on the screen and you’ll be amazed how quickly key concepts start to make sense.

The idea is quite simple – instead of injecting all of your dependencies via the controller’s constructor, you can inject them as parameters into the action handling a given HTTP request. This can help you prevent over-injection in the constructor.