How to apply custom Method Name to Action Method in Asp.Net Web Api?

 o apply a custom method name in an ASP.NET Web API project, you can use the ActionName attribute on your controller action method.

Here's an example:

csharp
public class MyApiController : ApiController
{
    [HttpGet]
    [ActionName("my-custom-method-name")]
    public IHttpActionResult MyActionMethod()
    {
        // Code for your action method here
    }
}

In this example, the HttpGet attribute is used to specify that this action method should respond to HTTP GET requests. The ActionName attribute is used to specify the custom name for this action method, which in this case is "my-custom-method-name".

Now, when a client makes a GET request to /api/myapi/my-custom-method-name, this action method will be called.

Note that the ActionName attribute can also be used to change the name of other HTTP verbs, such as HttpPost, HttpPut, and HttpDelete.