difference between httphandler and httpmodule

Akaash Chintamani Meher

10y1.3k.NET

can you please explain difference between httphandler and httpmodule with examples.

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Rajeesh Menoth10y ago
Hi,

HTTP Handler
HTTP Handler is the process which runs in response to a HTTP request. So whenever user requests a file it is processed by the handler based on the extension. So, custom http handlers are created when you need to special handling based on the file name extension. Let's consider an example to create RSS for a site. So, create a handler that generates RSS-formatted XML. Now bind the .rss extension to the custom handler.
HTTP Modules
HTTP Modules are plugged into the life cycle of a request. So when a request is processed it is passed through all the modules in the pipeline of the request. So generally http modules are used for:
Security: For authenticating a request before the request is handled.
Statistics and Logging: Since modules are called for every request they can be used for gathering statistics and for logging information.
Custom header: Since response can be modified, one can add custom header information to the response.
Features
HTTP handler and module features include the following:
The IHttpHandler and IHttpModule interfaces are the starting point for developing handlers and modules.
The IHttpAsyncHandler interface is the starting point for developing asynchronous handlers.
Custom handler and module source code can be put in the App_Code folder of an application, or it can be compiled and put in the Bin folder of an application.
Handlers and modules developed for use in IIS 6.0 can be used in IIS 7.0 with little or no change. For more information, see Moving an ASP.NET Application from IIS 6.0 to IIS 7.0.
Modules can subscribe to a variety of request-pipeline notifications. Modules can receive notification of events of the HttpApplication object.
In IIS 7.0, the request pipeline is integrated with the Web server request pipeline. HTTP modules can be used for any request to the Web server, not just ASP.NET requests.
Reference :

https://msdn.microsoft.com/en-us/library/bb398986.aspx

http://www.c-sharpcorner.com/blogs/difference-between-asp-net-httphandler-and-httpmodule1
0
Arul R10y ago
HI Akaask Kumar,

HTTP handler :

An ASP.NET HTTP handler is the process (frequently referred to as the "endpoint") that runs in response to a request made to an ASP.NET Web application. The most common handler is an ASP.NET page handler that processes .aspx files. When users request an .aspx file, the request is processed by the page through the page handler. You can create your own HTTP handlers that render custom output to the browser.

HTTP module:

An HTTP module is an assembly that is called on every request that is made to your application. HTTP modules are called as part of the ASP.NET request pipeline and have access to life-cycle events throughout the request. HTTP modules let you examine incoming and outgoing requests and take action based on the request.

For More info

https://msdn.microsoft.com/en-us/library/bb398986.aspx

http://www.c-sharpcorner.com/blogs/difference-between-asp-net-httphandler-and-httpmodule1

http://stackoverflow.com/questions/6449132/http-handler-vs-http-module

Let me know for any thing more....
If your problem solved means kindly Accept my answer
0
Munesh Sharma10y ago
http://www.c-sharpcorner.com/blogs/difference-between-asp-net-httphandler-and-httpmodule1
+1
Ravi Patel10y ago
Hi ,
Check this
http://www.codeproject.com/Articles/335968/Implementing-HTTPHandler-and-HTTPModule-in-ASP-NET
http://www.dotnetjalps.com/2010/12/what-is-difference-between-http-handler.html
https://sites.google.com/site/interviewsharing/asp-net/difference-between-httphandler-and-httpmodule
0