WebApplicationBuilder
WebApplicationBuilder is an ASP.NET Core builder type that configures application services, hosting, logging, and related settings before constructing a WebApplication.
ASP.NET Core in Action, 3e
WebApplicationBuilder is the ASP.NET Core builder type that configures application services, logging, and other hosting concerns before constructing a web application.
- How it is used
- Configures services, logging, and other application setup in Program.cs before creating a WebApplication.
- How deep it goes
- Works through the create-configure-build sequence and service registration, while deferring detailed treatment of dependency injection, configuration, and logging.
- Examples
- Uses a minimal API with HTTP request logging and a JSON /person endpoint, then a Razor Pages setup.
- What you can do after
- Build it from scratch by configuring a builder, calling Build(), then adding middleware and endpoints before Run().
Read how ASP.NET Core in Action, 3e explains WebApplicationBuilder →
Pro ASP.NET Core 7, Tenth Edition
WebApplicationBuilder is the ASP.NET Core builder type that configures an application and its services before constructing the web application.
- How it is used
- Configures ASP.NET Core services and startup settings before constructing the WebApplication request pipeline.
- How deep it goes
- Explains platform setup, service registration, Build transition, configuration access, and environment selection without descending into framework internals.
- Examples
- Uses a minimal Hello World endpoint, conditional formatter services, configuration-driven setup, middleware, and environment-aware endpoints.
- What you can do after
- Build from scratch a configured ASP.NET Core application with registered services, environment-specific choices, middleware, and mapped endpoints.
Read how Pro ASP.NET Core 7, Tenth Edition explains WebApplicationBuilder →
Related concepts
- WebApplicationproduces · WebApplication is an ASP.NET Core application type that hosts configured services, runs the web server, and exposes the HTTP request-processing pipeline.
- application propertiesuses · Application properties are named configuration settings that provide values used to configure an application's behavior.
- ConfigurationManagerconfigures · ConfigurationManager is the .NET configuration type that builds and exposes application configuration while implementing IConfigurationBuilder and IConfigurationRoot.
- Logging sectionconfigures · The Logging section is the standard ASP.NET Core configuration section containing logging provider and filtering settings.
- services propertyuses · The Services property is a WebApplicationBuilder property exposing the service collection used to register application and framework dependencies for dependency injection.
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