Resource filter
A resource filter is an ASP.NET Core MVC filter that runs before model binding and resumes after the remaining request pipeline, before result execution.
ASP.NET Core in Action, 3e
A resource filter is an ASP.NET Core MVC filter that runs early in request processing, before model binding, and can also run after the result executes.
- How it is used
- Applies early MVC-specific cross-cutting logic, including request rejection and model-binding control.
- How deep it goes
- Defines synchronous and asynchronous interfaces, execution points, scopes, and short-circuiting, without detailing advanced pipeline internals.
- Examples
- Uses console-logging filters, content-type rejection, and a feature-enabled API controller.
- What you can do after
- Build it from scratch with IResourceFilter or IAsyncResourceFilter and short-circuit requests through context.Result.
Read how ASP.NET Core in Action, 3e explains resource filter →
Pro ASP.NET Core 7, Tenth Edition
A resource filter is an ASP.NET Core MVC filter that runs before model binding and after endpoint execution but before the action result is executed.
- How it is used
- Intercepts endpoint requests to implement reusable features such as caching, request alteration, response alteration, and early responses.
- How deep it goes
- Defines synchronous and asynchronous interfaces, lifecycle contexts, short-circuiting, caching, and attribute application without detailing complete production caching design.
- Examples
- Demonstrates a path-keyed SimpleCacheAttribute applied to a Razor Page model alongside RequireHttps.
- What you can do after
- Build it from scratch as a synchronous or asynchronous filter that can inspect, cache, alter, or short-circuit endpoint processing.
Read how Pro ASP.NET Core 7, Tenth Edition explains resource filter →
Related concepts
- action filtercontrasts with · An action filter is an ASP.NET Core MVC filter that runs around an action method after model binding and can modify action execution or its result.
- servlet filterkind of · A servlet filter is a web component that intercepts requests and responses to inspect, transform, process, or reject them before or after servlet execution.
- filterkind of · A filter is an MVC component, implemented as an attribute or other mechanism, that can modify or constrain request or response processing.
- razor pages filter pipelinepart of · The Razor Pages filter pipeline is the ordered sequence of filters that processes a Razor Pages request around page handler execution.
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