HttpApplication and HttpModules

HttpModules act as request filters in ASP.NET versions prior to 5. They are reusable units of code that can be plugged into the request pipeline, and tasked with responding to events defined in the HttpApplication class as they are fired. The kind of things that modules are used for include managing authentication, global error handling and logging. Traditional forms authentication is implemented as a module, a component that logs details of unhandled exceptions, which is impemented as an HttpModule. Modules can also be used to intercept and modify the outbound response to remove white space or compress it, for example. Modules implement the IHttpModule interface, which is defined in System.Web, and that library is not part of the new ASP.NET ~ ASP.NET 5.

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Vincent Maverick Durano11y ago
HttpModules act as request filters in ASP.NET versions prior to 5. They are reusable units of code that can be plugged into the request pipeline, and tasked with responding to events defined in the HttpApplication class as they are fired. The kind of things that modules are used for include managing authentication, global error handling and logging. Traditional forms authentication is implemented as a module, a component that logs details of unhandled exceptions, which is impemented as an HttpModule. Modules can also be used to intercept and modify the outbound response to remove white space or compress it, for example. Modules implement the IHttpModule interface, which is defined in System.Web, and that library is not part of the new ASP.NET ~ ASP.NET 5.