Microsoft.AspNetCore.Builder Namespace

Contains methods for adding built-in middleware to an application, and the options types for the middleware.

Classes

ApplicationBuilder	Default implementation for IApplicationBuilder.
ApplicationBuilderExtensions	Extension methods for adding the RequestLocalizationMiddleware to an application.
AuthAppBuilderExtensions	Extension methods to add authentication capabilities to an HTTP application pipeline.
AuthenticationOptions	Base Options for all authentication middleware.
AuthorizationAppBuilderExtensions	Extension methods to add authorization capabilities to an HTTP application pipeline.
AuthorizationEndpointConventionBuilderExtensions	Authorization extension methods for IEndpointConventionBuilder.
BrowserLinkExtensions	Implementation of extension methods for configuring Browser Link in an ASP.NET Core application.
BuilderExtensions	Identity extensions for IApplicationBuilder.
CertificateForwardingBuilderExtensions	Extension methods for using certificate forwarding.
ClaimsTransformationAppBuilderExtensions	Extension methods to add claims transformation capabilities to an HTTP application pipeline.
ClaimsTransformationOptions	Contains the options used by the ClaimsTransformationMiddleware.
ComponentEndpointConventionBuilder	Builds conventions that will be used for customization of ComponentHub EndpointBuilder instances.
ComponentEndpointRouteBuilderExtensions	Extensions for IEndpointRouteBuilder.
ComponentsWebAssemblyApplicationBuilderExtensions	Extensions for mapping Blazor WebAssembly applications.
ComponentTypeMetadata	Metadata that represents the component associated with an endpoint.
ConcurrencyLimiterExtensions	Extension methods for adding the ConcurrencyLimiterMiddleware to an application.
ConfigureHostBuilder	A non-buildable IHostBuilder for WebApplicationBuilder. Use Build() to build the WebApplicationBuilder.
ConfigureWebHostBuilder	A non-buildable IWebHostBuilder for WebApplicationBuilder. Use Build() to build the WebApplicationBuilder.
ConnectionEndpointRouteBuilder	Builds conventions that will be used for customization of Connection EndpointBuilder instances.
ConnectionEndpointRouteBuilderExtensions	Extension methods on IEndpointRouteBuilder that add routes for ConnectionHandlers.
ConnectionsAppBuilderExtensions	Extension methods for IApplicationBuilder.
ControllerActionEndpointConventionBuilder	Builds conventions that will be used for customization of EndpointBuilder instances.
ControllerEndpointRouteBuilderExtensions	Contains extension methods for using Controllers with IEndpointRouteBuilder.
CookieAppBuilderExtensions	Extension methods to add cookie authentication capabilities to an HTTP application pipeline.
CookieAuthenticationOptions	Configuration options for CookieAuthenticationMiddleware.
CookiePolicyAppBuilderExtensions	Extension methods to add cookie policy capabilities to an HTTP application pipeline.
CookiePolicyOptions	Provides programmatic configuration for the CookiePolicyMiddleware.
CorsEndpointConventionBuilderExtensions	CORS extension methods for IEndpointConventionBuilder.
CorsMiddlewareExtensions	The IApplicationBuilder extensions for adding CORS middleware support.
DatabaseErrorPageExtensions	IApplicationBuilder extension methods for the DatabaseErrorPageMiddleware.
DatabaseErrorPageOptions	Options for the DatabaseErrorPageMiddleware.
DefaultFilesExtensions	Extension methods for the DefaultFilesMiddleware
DefaultFilesOptions	Options for selecting default file names.
DeveloperExceptionPageExtensions	IApplicationBuilder extension methods for the DeveloperExceptionPageMiddleware.
DeveloperExceptionPageOptions	Options for the DeveloperExceptionPageMiddleware.
DirectoryBrowserExtensions	Extension methods for the DirectoryBrowserMiddleware
DirectoryBrowserOptions	Directory browsing options
ElmExtensions
EndpointBuilder	A base class for building an new Endpoint.
EndpointRouteBuilderExtensions	Provides extension methods for IEndpointRouteBuilder to add endpoints.
EndpointRoutingApplicationBuilderExtensions	Constains extensions for configuring routing on an IApplicationBuilder.
ExceptionHandlerExtensions	Extension methods for enabling ExceptionHandlerExtensions.
ExceptionHandlerOptions	Options for configuring the ExceptionHandlerMiddleware.
FacebookAppBuilderExtensions	Extension methods to add Facebook authentication capabilities to an HTTP application pipeline.
FacebookOptions	Configuration options for FacebookMiddleware.
FallbackEndpointRouteBuilderExtensions	Contains extension methods for IEndpointRouteBuilder.
FileServerExtensions	Extension methods that combine all of the static file middleware components: Default files, directory browsing, send file, and static files
FileServerOptions	Options for all of the static file middleware components
ForwardedHeadersExtensions	Extension methods for enabling ForwardedHeadersMiddleware.
ForwardedHeadersOptions	Options for ForwardedHeadersMiddleware
GoogleAppBuilderExtensions	Extension methods to add Google authentication capabilities to an HTTP application pipeline.
GoogleOptions	Configuration options for GoogleMiddleware.
HeaderPropagationApplicationBuilderExtensions	IApplicationBuilder extension methods for HeaderPropagationMiddleware which propagates request headers to an HttpClient.
HealthCheckApplicationBuilderExtensions	IApplicationBuilder extension methods for the HealthCheckMiddleware.
HealthCheckEndpointRouteBuilderExtensions	Provides extension methods for IEndpointRouteBuilder to add health checks.
HostFilteringBuilderExtensions	Extension methods for the HostFiltering middleware.
HostFilteringServicesExtensions	Extension methods for the host filtering middleware.
HstsBuilderExtensions	Extension methods for the HSTS middleware.
HstsServicesExtensions	Extension methods for the HSTS middleware.
HttpLoggingBuilderExtensions	Extension methods for the HttpLogging middleware.
HttpMethodOverrideExtensions	Extension methods for enabling HttpMethodOverrideMiddleware.
HttpMethodOverrideOptions	Options for configuring HttpMethodOverrideMiddleware
HttpsPolicyBuilderExtensions	Extension methods for the HttpsRedirection middleware.
HttpsRedirectionServicesExtensions	Extension methods for the HttpsRedirection middleware.
HubEndpointConventionBuilder	Builds conventions that will be used for customization of Hub EndpointBuilder instances.
HubEndpointRouteBuilderExtensions	Extension methods on IEndpointRouteBuilder to add routes to Hubs.
IdentityOptions	Represents all the options you can use to configure the identity system.
IISOptions	Options to configure IIS Out-Of-Process.
IISServerOptions	Provides configuration for IIS In-Process.
JwtBearerAppBuilderExtensions	Extension methods to add OpenIdConnect Bearer authentication capabilities to an HTTP application pipeline.
JwtBearerOptions	Options class provides information needed to control Bearer Authentication middleware behavior
MapExtensions	Extension methods for the MapMiddleware.
MapRouteRouteBuilderExtensions	Provides extension methods for IRouteBuilder to add routes.
MapWhenExtensions	Extension methods for the MapWhenMiddleware.
MicrosoftAccountAppBuilderExtensions	Extension methods to add Microsoft Account authentication capabilities to an HTTP application pipeline.
MicrosoftAccountOptions	Configuration options for MicrosoftAccountMiddleware.
MigrationsEndPointExtensions	IApplicationBuilder extension methods for the MigrationsEndPointMiddleware.
MigrationsEndPointOptions	Options for the MigrationsEndPointMiddleware.
MvcApplicationBuilderExtensions	Extension methods for IApplicationBuilder to add MVC to the request execution pipeline.
MvcAreaRouteBuilderExtensions	Extension methods for IRouteBuilder.
OAuthAppBuilderExtensions	Extension methods to add OAuth 2.0 authentication capabilities to an HTTP application pipeline.
OAuthOptions	Configuration options for OAuthMiddleware<TOptions>.
OpenApiEndpointConventionBuilderExtensions	Extension methods for annotating OpenAPI descriptions on an Endpoint.
OpenIdConnectAppBuilderExtensions	Extension methods to add OpenID Connect authentication capabilities to an HTTP application pipeline.
OpenIdConnectOptions	Configuration options for OpenIdConnectMiddleware
OutputCacheApplicationBuilderExtensions
OwinExtensions	Extension methods to add OWIN to an HTTP application pipeline.
PageActionEndpointConventionBuilder	Builds conventions that will be used for customization of EndpointBuilder instances.
ProxyExtension
ProxyOptions	Options to configure host, scheme, and port settings
RateLimiterApplicationBuilderExtensions	Extension methods for the RateLimiting middleware.
RateLimiterEndpointConventionBuilderExtensions	Rate limiter extension methods for IEndpointConventionBuilder.
RateLimiterServiceCollectionExtensions	Extension methods for the RateLimiting middleware.
RazorComponentEndpointConventionBuilder	Builds conventions that will be used for customization of EndpointBuilder instances.
RazorComponentsEndpointRouteBuilderExtensions
RazorPagesEndpointRouteBuilderExtensions	Contains extension methods for using Razor Pages with IEndpointRouteBuilder.
RemoteAuthenticationOptions	Contains the options used by the RemoteAuthenticationHandler<TOptions>.
RequestDecompressionBuilderExtensions	Extension methods for the HTTP request decompression middleware.
RequestLocalizationOptions	Specifies options for the RequestLocalizationMiddleware.
RequestLocalizationOptionsExtensions	Extension methods for the RequestLocalizationOptions.
RequestTimeoutsIApplicationBuilderExtensions	Extension methods for the request timeouts middleware.
RequestTimeoutsIEndpointConventionBuilderExtensions	Request timeouts extension methods for IEndpointConventionBuilder.
ResponseBufferingMiddlewareExtensions
ResponseCachingExtensions	Extension methods for adding the ResponseCachingMiddleware to an application.
ResponseCompressionBuilderExtensions	Extension methods for the ResponseCompression middleware.
ResponseCompressionServicesExtensions	Extension methods for the ResponseCompression middleware.
RewriteBuilderExtensions	Extension methods for the RewriteMiddleware
RouteHandlerBuilder	Builds conventions that will be used for customization of MapAction EndpointBuilder instances.
RouterMiddleware	Middleware responsible for routing.
RouteShortCircuitEndpointConventionBuilderExtensions	Short circuit extension methods for IEndpointConventionBuilder.
RoutingBuilderExtensions	Extension methods for adding the RouterMiddleware middleware to an IApplicationBuilder.
RoutingEndpointConventionBuilderExtensions	Extension methods for adding routing metadata to endpoint instances using IEndpointConventionBuilder.
RunExtensions	Extension methods for adding terminal middleware.
SessionMiddlewareExtensions	Extension methods for adding the SessionMiddleware to an application.
SessionOptions	Represents the session state options for the application.
SignalRAppBuilderExtensions	Extension methods for IApplicationBuilder.
SpaApplicationBuilderExtensions	Provides extension methods used for configuring an application to host a client-side Single Page Application (SPA).
SpaPrerenderingExtensions	Extension methods for configuring prerendering of a Single Page Application.
SpaPrerenderingOptions	Represents options for the SPA prerendering middleware.
SpaProxyingExtensions	Extension methods for proxying requests to a local SPA development server during development. Not for use in production applications.
SpaRouteExtensions	Extension methods useful for configuring routing in a single-page application (SPA).
StaticFileExtensions	Extension methods for the StaticFileMiddleware
StaticFileOptions	Options for serving static files
StaticFilesEndpointRouteBuilderExtensions	Contains extension methods for using static files with endpoint routing.
StatusCodePagesExtensions	Extension methods for enabling StatusCodePagesMiddleware.
StatusCodePagesOptions	Options for StatusCodePagesMiddleware.
TwitterAppBuilderExtensions	Extension methods to add Twitter authentication capabilities to an HTTP application pipeline.
TwitterOptions	Options for the Twitter authentication middleware.
UseExtensions	Extension methods for adding middleware.
UseMiddlewareExtensions	Extension methods for adding typed middleware.
UsePathBaseExtensions	Extension methods for IApplicationBuilder.
UseWhenExtensions	Extension methods for IApplicationBuilder.
WebApiCompatShimRouteBuilderExtensions
WebApplication	The web application used to configure the HTTP pipeline, and routes.
WebApplicationBuilder	A builder for web applications and services.
WebApplicationOptions	Options for configuring the behavior for CreateBuilder(WebApplicationOptions).
WebAssemblyNetDebugProxyAppBuilderExtensions	Provides infrastructure for debugging Blazor WebAssembly applications.
WebpackDevMiddleware	Extension methods that can be used to enable Webpack dev middleware support.
WebSocketMiddlewareExtensions	IApplicationBuilder extension methods to add and configure WebSocketMiddleware.
WebSocketOptions	Configuration options for the WebSocketMiddleware.
WelcomePageExtensions	IApplicationBuilder extensions for the WelcomePageMiddleware.
WelcomePageOptions	Options for the WelcomePageMiddleware.

Interfaces

IApplicationBuilder	Defines a class that provides the mechanisms to configure an application's request pipeline.
IEndpointConventionBuilder	Builds conventions that will be used for customization of EndpointBuilder instances.
IHubEndpointConventionBuilder	Abstraction that builds conventions that will be used for customization of Hub EndpointBuilder instances.

Remarks

For more information about using ASP.NET Core built-in middleware, see Built-in middleware.