ASP.NET interview question :- How do we write a HttpModule ?

ASP.NET interview question :- How do we write a HttpModule ?


Answer:

Again a simple .NET Interview question Writing a HttpModule is a two step process.

Create a class which implements IhttpModule.

    public class clsHttpModule : IHttpModule
    {
    public void Init(HttpApplication context)
    {
       this.httpApp = context;
       httpApp.Context.Response.Clear();
       httpApp.AuthenticateRequest += new EventHandler(OnAuthentication);
       httpApp.AuthorizeRequest += new EventHandler(OnAuthorization);
    ....
    ....
    ....

    }
    void OnAuthorization(object sender, EventArgs a)
    {
        //Implementation
    }
    void OnAuthentication(object sender, EventArgs a)
    {      
        //Implementation
    }   
    }

Make a entry in the web.config file.

   <httpModules>
   <add name="clsHttpModule" type="clsHttpModule"/>
   </httpModules>

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