What are all different types of Filter Actions in C# Web API

-

Filters are used to inject extra logic at the different levels of WebApi Framework request processing. Filters provide a way for cross-cutting concerns (logging, authorization, and caching). Filters can be applied to an action method or controller in a declarative or programmatic way. Below are the type of filters available in C# Web API.

Authentication Filter

An authentication filter helps us to authenticate the user detail. In the authentication filter, we write the logic for checking user authenticity.

Authorization Filter

Authorization Filters are responsible for checking User Access. They implement the IAuthorizationFilterinterface in the framework.

Action Filter

Action filters are used to add extra logic before or after action methods execution. The OnActionExecuting and OnActionExecuted methods are used to add our logic before and after an action method is executed.

Exception Filter

An exception filter is executed when a controller method throws any unhandled exception that is not an HttpResponseException exception. The HttpResponseException type is a special case, because it is designed specifically for returning an HTTP response.

Override Filter −

Override filters are used to customize the behavior of other filter for individual action method. Sometimes there is a requirement like whatever the filters we are having we need to override. Let us say we applied the filter at the controller level but there is an action within a controller where we don’t want to use the filter so we can use the override version of the filter.

Filters are generally applied in below of three ways.

  • At Controller level

  • At ActionMethod level

  • At Global level (WebApi.Config.cs)

Comments

Post a Comment

Popular posts from this blog

Email Sending through O365 using OAuth Protocol

-
  Microsoft Office365 EWS servers have been extended to support authorization via the industry-standard OAuth 2.0 protocol. Using OAUTH protocol, user can do authentication by Microsoft Web OAuth instead of inputting user and password directly in application Microsoft / Office 365 OAuth + EWS We can use the OAuth authentication service provided by Azure Active Directory to enable our application to connect with IMAP, POP or SMTP protocols to access Exchange Online in Office 365. To use OAuth with our application we need to register application on Azure Active directory and other steps also we need to do to get the access token back. Below are the steps   To use Microsoft/Office365 OAUTH in your application, you must create an application in  https://portal.azure.com . Sign into the Azure portal using either a work or school account or a personal Microsoft account. If your account gives you access to more than one tenant, select your account in the top right corn
Read more

IISRESET vs App Pool Recycling ?

-
Image
 I think most IIS administrators know IISRESET command, and why they use it. One of possible reasons can be to restart IIS services to initialize web applications, or to apply some changes of applications & IIS settings .There’re just a few conditions those need your IISRESET command. In most situations, you don’t need this. I have a concern if you always run this command for applying any changes, or release system resource – memory – regularly, or frequently. Because it’s much more cost than what you really need to take – there’re side effects Recycling App Pool’ has been introduced from IIS6 in Windows2003. It’s designed to restart only application pools(=worker processes). It can be done in a command prompt(run ‘IISAPP /?’ in a command prompt for details), as well as in the IIS manager What IISRESET does? When you run IISRESET, many things will happen. In order to understand them, I think I need to show you how IIS looks like – about IIS core components. The below shows you role
Read more

Deploy .Net6.0 Web api with docker

-
Image
  What is Docker? Docker is a containerization platform, meaning that it enables you to package your applications into images and run them as “containers” on any platform that can run Docker. It negates the classic: “It works on my computer” argument as Docker images contain everything needed for the app to run. Are Containers the same as Virtual Machines? They are similar, but not the same. In short: Virtual Machines provide OS Level Virtualization Containers provide App Level Virtualization This concept is depicted below: Why Would You Use it? In short you would use Docker, (and hence containers), for the following reasons: Portability.  As containers are self- contained  they can run on any platform that runs Docker, making them easy to stand up and run on a wide variety of platforms. Scalability.  With the use of additional “orchestration” you can spin up multiple container instances to support increased load. Performance.  Containers generally perform better than their VM counterp
Read more