Common Architectures in ASP.NET Core


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The ASP.NET Core project template creates a new ASP.NET Core web application. The project template uses Microsoft Asp.Net core. All meta package includes support for the following architectures:

Domain Layer

The domain layer is the layer where you define your application’s domain classes and services. This is where your application’s business logic resides, and you define how your data will be structured and stored. The domain layer is where your business logic sits. It contains all your business objects, repositories, and any services that expose them to other parts of the application. The domain layer is the lowest layer of an application.

It contains all the business logic required to run a website or web service. The domain layer is often considered the most important part of any ASP.NET application because it makes your application real. The Domain Layer is the lowest layer of the ASP.NET stack and is responsible for all of your application’s underlying functionality and services. The Domain Layer is similar to the physical hardware layer since it provides services such as file access and database management.

Application Layer

The application layer is where you’ll write code that makes up your application. It includes the interface (UI) components, which contain presentation and data binding logic. The application layer also includes service–based code that runs in the background to handle client requests, such as an ASP.NET web page or a mobile phone app. The application layer, or presentation layer, is where you design and build your user interface. This is where you determine how users interact with your site through forms, data entry boxes, and other forms of interaction.

The Application Layer is responsible for building and managing web applications in a very high-level manner. It consists of an application’s user interface components, typically written using HTML, CSS, JavaScript, and other technologies that make up the UI framework.

Infrastructure Layer

The infrastructure layer defines the basic objects used to construct an application. The infrastructure layer includes a set of core .NET Framework assemblies that define classes for working with network resources, such as files and databases. The infrastructure layer also defines application-specific interfaces connecting remote web services and other applications. In addition, the infrastructure layer includes classes that are available to all applications by default, such as the HttpContext class and the WebClient class.

The infrastructure layer depends on the presentation and data access tiers; these tiers share a common set of functionality used by both tiers and then exposed through each tier’s defined interfaces.

The Presentation Layer

The presentation layer is the most visible part of your ASP.NET website, as it displays the data to the user. In ASP.NET MVC, this layer is implemented using either Razor or HTML helpers. The presentation layer creates HTML documents using ASP.NET controls, templating engines such as Razor or Handlebars, and MVC controllers. It’s where you’ll find your business logic code that interacts with the data stored in your databases and persists data between requests to the server. The presentation layer is the layer that defines the structure, content, and appearance of an application.

It is also responsible for responding to requests from the user interface (UI) layer and providing access to underlying business logic. The MVC pattern has been very successful in web development because it allows for separating concerns between your application’s structure and code. It also allows for more testable code and easier application maintenance. You can easily reuse code across multiple pages and maintain a high testability level without testing each page individually.

The User Interface Layer

The user interface layer provides an interface between the front-end application and the database. This can be done using a non-visual language such as ASP.NET Web API or .NET Framework Data Provider for SQL Server or Entity Framework or a visual framework such as ASP.NET MVC or Extensible Application Markup Language (XAML). On the other hand, the user interface (UI) layer is responsible for defining how the application looks and feels to its users. This can include colors, fonts, the layout of controls (e.g., buttons and text boxes), and how data appears in a view or data grid.

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