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ASP.NET Web API

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description ASP.NET Web API Overview

ASP.NET Web API provides a framework for creating reusable web services and APIs within the .NET ecosystem. It leverages the .NET programming language to build backend systems that can be accessed via standard HTTP protocols. This technology is particularly useful for developers constructing applications requiring communication between different software components or integrating with external systems, often used in legacy Microsoft environments.

help ASP.NET Web API FAQ

Is ASP.NET Web API the same thing as ASP.NET Core Web API?

No. ASP.NET Web API originally referred to the .NET Framework-era HTTP API framework, while ASP.NET Core later unified MVC and Web API patterns in a cross-platform stack.

What did developers use ASP.NET Web API for?

It was used to build REST-style HTTP services in C# or other .NET languages. Typical clients included JavaScript apps, mobile apps, and other server applications calling JSON endpoints.

Did ASP.NET Web API require IIS?

Classic ASP.NET Web API commonly ran on IIS with the .NET Framework. Modern ASP.NET Core APIs can run cross-platform on Kestrel and can be hosted behind IIS, Nginx, or other reverse proxies.

What changed in ASP.NET Web API 2?

ASP.NET Web API 2 added features such as attribute routing and better support for OData and CORS. It shipped during the Visual Studio 2013 era, before ASP.NET Core became the main direction.

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