How to redirect current route to the another route when the call have method attribute incorrect web api c#?

Question

Controller

[Route("OrderFood")]
[HttpPost]
public IHttpActionResult OrderFood(Food foodinfo)
{
    //do something
    ...
}

[Route("ResolverError")]
public void ResolverError()
{
    //Return error in a frienly and logging detail about the caller in App Insights
    ...
}

App_Start/RouteConfig

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

    routes.MapRoute(
        name: "Default",
        url: "Api/{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
    );
}

Hello, context is as follows: My system have some calls to method OrderFood by Postman, cause mistake so they call it with method GET. Of course, the call failed and response code 405 .

So, my idea is if user request to OrderFood with method GET , i will detect it and redirect to route ResolverError . At here, i can manage exception and logging detail about the caller.

How about your idea? Thank you!

Answer 1

Use Global.asax which is used for higher-level application events such as Application_Start, Session_Start, etc. In that file, we have an event called Application_PostRequestHandlerExecute which is fired when the framework has finished executing an event handler. You can use this event for your use case. Try the following code:

 protected void Application_PostRequestHandlerExecute(object sender, EventArgs e)
    {
        var response = HttpContext.Current.Response;
        if (response.StatusCode == 405)
        {
            Response.RedirectToRoute("Controller/ResolverError");
        }
    }

Getting Response from the HTTP context, checking the status code, and then redirecting the request to the specific controller.