An authentication filter is a piece of software that verifies the authenticity of an HTTP request. Both Web API 2 and MVC 5 allow authentication filters, although the naming conventions for the filter interface differ slightly. Authentication filters for Web APIs are discussed in this topic.
Create a new project in Visual Studio 2015 or another editor of your choice.
Select the "web application" project and give it a name that fits your needs.
Click OK after selecting the "empty" template and checking the MVC box.
Select "web application" as your project type and give it a suitable name.
Click OK after selecting "empty" template and checking the MVC option.
Add a new controller by right-clicking on the controllers folder.
In HomeController, right-click on the Index method.
In general, there are three phases to creating a filter: - Create a Java class that implements the Filter interface and extends the life cycle methods of the filter. - Set the filter's starting parameters (optional). - Choose whether to bind filters to Java servlets or URL patterns.
The server and client sides of interceptors use the same API. Interceptors are used to manipulate entities via modifying entity input/output streams, whereas filters are used to manipulate request and response parameters such as HTTP headers, URIs, and/or HTTP methods.
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