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How do we create a custom route in ASP.NET Core MVC?

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January 24, 2023

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In ASP.NET Core MVC, you can create a custom route by using the MapRoute method in the Startup.Configure method. Here is an example:

app.UseEndpoints(endpoints =>
{
    endpoints.MapControllerRoute(
        name: "default",
        pattern: "{controller=Home}/{action=Index}/{id?}");

    endpoints.MapControllerRoute(
        name: "custom",
        pattern: "custom/{controller=Home}/{action=Index}/{id?}",
        defaults: new { controller = "Home", action = "Index" });
});

In this example, we are defining two routes: the first is the default route and the second is the custom route. The custom route is prefixed with “custom/”, and it will match URLs that start with that prefix.

You can also use MapRoute a method in RouteBuilder a class that can be used to configure custom routes.

routes.MapRoute(
    name: "custom",
    template: "custom/{controller=Home}/{action=Index}/{id?}"
);

You should also note that the custom route should be defined before the default route so that it takes precedence over the default route.