Web API includes filters to add extra logic before or after action method executes. Filters can be used to provide cross-cutting features such as logging, exception handling, performance measurement, authentication and authorization.

Filters in ASP.NET Core allow code to run before or after specific stages in the request processing pipeline. Built-in filters handle tasks such as: Authorization, preventing access to resources a user isn't authorized for. Response caching, short-circuiting the request pipeline to return a cached response.

Filters in ASP.NET Core Web API provide a powerful way to inject code at various points in the request processing pipeline, helping to manage cross-cutting concerns efficiently. By understanding the different types of filters and how they work, we can create cleaner, more maintainable applications.

Jul 26, 2024 · Minimal API filters allow developers to implement business logic that supports: Running code before and after the endpoint handler. Inspecting and modifying parameters provided during an endpoint handler invocation. Intercepting the response behavior of an endpoint handler. Filters can be helpful in the following scenarios:

Feb 6, 2025 · In this article, we will cover filtering in ASP.NET Core Web API. We'll learn what filtering is, how it's different from searching, and how to implement it.

Explore the various types of filters in C# ASP.NET WebAPI and understand their roles in request processing, including authentication, authorization, action filters, and exception filters.

Oct 27, 2022 · Filters in .NET offer a great way to hook into the MVC action invocation pipeline. Therefore, we can use filters to extract code that can be reused and make our actions cleaner and maintainable. There are some filters that are already provided by ASP.NET Core like the authorization filter, and there are the custom ones that we can create ourselves.

Apr 5, 2025 · Filters in ASP.NET Core are components that let you execute custom logic at specific points during the processing of HTTP requests in your Web API. They help you cleanly separate concerns like logging, authentication, error handling, or …

Aug 8, 2024 · When working with C# Web API, filters play a crucial role in controlling the flow of requests and responses. Understanding how to implement and leverage filters can significantly improve the performance and maintainability of your API.

Filters are parts of the ASP.NET Web API that implement pre- and post-process requests and responses. They provide a way to add the functionality of your API pipeline without changing the specific actions or controllers.