- Published on
Middleware vs. Filter in .NET?
- Authors
- Name
- Muhammad Mustafa
When it comes to crafting robust and efficient applications, understanding the nuances between ๐ ๐ถ๐ฑ๐ฑ๐น๐ฒ๐๐ฎ๐ฟ๐ฒ ๐ฎ๐ป๐ฑ ๐๐ถ๐น๐๐ฒ๐ฟ๐ can make a big difference. So let's dive into ๐ ๐ถ๐ฑ๐ฑ๐น๐ฒ๐๐ฎ๐ฟ๐ฒ ๐ฎ๐ป๐ฑ ๐๐ถ๐น๐๐ฒ๐ฟ๐ to uncover their roles, usage, and implementation in the pipeline!
๐ ๐ถ๐ฑ๐ฑ๐น๐ฒ๐๐ฎ๐ฟ๐ฒ๐ and ๐๐ถ๐น๐๐ฒ๐ฟ๐
๐ ๐ถ๐ฑ๐ฑ๐น๐ฒ๐๐ฎ๐ฟ๐ฒ๐ ๐๐ป๐ฑ ๐๐ถ๐น๐๐ฒ๐ฟ๐ act as a bridge between the HTTP request and response. It's like a series of layers that intercept, process, and potentially modify the request and response objects.
๐ ๐ถ๐ฑ๐ฑ๐น๐ฒ๐๐ฎ๐ฟ๐ฒ spans across the entire app, while ๐ณ๐ถ๐น๐๐ฒ๐ฟ๐ target specific controllers or actions, offering focused enhancements where needed.
๐จ๐๐ฎ๐ด๐ฒ ๐ฎ๐ป๐ฑ ๐ฃ๐ผ๐๐ถ๐๐ถ๐ผ๐ป๐ถ๐ป๐ด
๐ ๐ถ๐ฑ๐ฑ๐น๐ฒ๐๐ฎ๐ฟ๐ฒ sits in the heart of the request pipeline, It intercepts incoming requests, handling global tasks, like authentication and routing and then passes the request to the next middleware in the pipeline. Think of it as the guardian of your app's core functionality. It acts as a bridge between the client and the application.
๐๐
๐ฎ๐บ๐ฝ๐น๐ฒ: Authentication middleware that validates user credentials before accessing protected routes.
๐ฃ๐ผ๐๐ถ๐๐ถ๐ผ๐ป: Middleware sits early in the request processing pipeline, making it ideal for tasks like logging, error handling, and authentication.
๐๐บ๐ฝ๐น๐ฒ๐บ๐ฒ๐ป๐๐ฎ๐๐ถ๐ผ๐ป:
To implement ๐ ๐ถ๐ฑ๐ฑ๐น๐ฒ๐๐ฎ๐ฟ๐ฒ, create a class that implements the IMiddleware interface and configure it in your Startup.
using app.UseMiddleware<YourMiddlewareClass>();
๐๐ถ๐น๐๐ฒ๐ฟ๐, on the other hand, are like tailored suits for your actions, adding specific functionalities, they are applied to specific actions or controllers within the application. They enable developers to execute code before or after an action method is called, allowing for input validation, logging, and more.
๐๐
๐ฎ๐บ๐ฝ๐น๐ฒ: A logging filter that records detailed information about each API call.
๐ฃ๐ผ๐๐ถ๐๐ถ๐ผ๐ป: Filters are applied at the action or controller level, providing granular control over behavior.
๐๐บ๐ฝ๐น๐ฒ๐บ๐ฒ๐ป๐๐ฎ๐๐ถ๐ผ๐ป:
For ๐๐ถ๐น๐๐ฒ๐ฟ๐, decorate your controller or action methods with attributes like [Authorize], [ValidateModel], create custom filters by implementing IActionFilter, IResultFilter, etc.
