Table of Contents

Class PageStateMiddleware

Namespace
Htmx.Components.State
Assembly
Htmx.Components.dll

ASP.NET Core middleware that manages page state across HTTP requests. This middleware automatically loads encrypted page state from request headers, makes it available throughout the request pipeline, and manages state persistence.

public class PageStateMiddleware
Inheritance
PageStateMiddleware
Inherited Members
Extension Methods

Constructors

PageStateMiddleware(RequestDelegate)

Initializes a new instance of the PageStateMiddleware with the specified next delegate.

public PageStateMiddleware(RequestDelegate next)

Parameters

next RequestDelegate

The next middleware delegate in the pipeline

Methods

GetPageState(HttpContext)

Retrieves the page state from the current HTTP context. This method provides access to the page state that was loaded and attached by the middleware.

public static IPageState GetPageState(HttpContext context)

Parameters

context HttpContext

The HTTP context from which to retrieve the page state

Returns

IPageState

The page state instance for the current request

Exceptions

InvalidOperationException

Thrown when page state is not available, typically indicating that the PageStateMiddleware was not properly registered or executed.

InvokeAsync(HttpContext, IPageState)

Processes the HTTP request, loading page state from headers and making it available to the request context. The page state is loaded from the X-Page-State header if present, and attached to the HttpContext for use by subsequent middleware and controllers.

public Task InvokeAsync(HttpContext context, IPageState pageState)

Parameters

context HttpContext

The HTTP context for the current request

pageState IPageState

The page state service injected by dependency injection

Returns

Task

A task representing the asynchronous middleware operation