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AspNetCore.Docs/aspnetcore/fundamentals/host/index.md

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title author description ms.author ms.custom ms.date uid
Host in ASP.NET Core guardrex Learn about the ASP.NET Core Web Host and .NET Generic Host, which are responsible for app startup and lifetime management. riande mvc 05/16/2018 fundamentals/host/index

Host in ASP.NET Core

.NET apps configure and launch a host. The host is responsible for app startup and lifetime management. Two host APIs are available for use:

  • Web Host – Suitable for hosting web apps.
  • Generic Host (ASP.NET Core 2.1 or later) – Suitable for hosting non-web apps (for example, apps that run background tasks). In a future release, the Generic Host will be suitable for hosting any kind of app, including web apps. The Generic Host will eventually replace the Web Host.

For hosting ASP.NET Core web apps, developers should use the Web Host based on IWebHostBuilder. For hosting non-web apps, developers should use the Generic Host based on HostBuilder.