ASP.net core MVC catch all route serve static file

Question

Is there a way to make a catch all route serve a static file?

Looking at this http://blog.nbellocam.me/2016/03/21/routing-angular-2-asp-net-core/

I basically

Answer 1

What I'm using that works well is Microsoft.AspNetCore.Builder.SpaRouteExtensions.MapSpaFallbackRoute:

app.UseMvc(routes =>
{
    // Default route for SPA components, excluding paths which appear to be static files (have an extension)
    routes.MapSpaFallbackRoute(
        "spaFallback",
        new { controller = "Home", action = "Index" });
});

HomeController.Index has the equivalent of your index.html. You can probably route to a static page also.

A bit off topic, but if you also have an API in the same project under an api folder you can set a default 404 response for any API routes that don't match:

routes.MapRoute(
    "apiDefault",
    "api/{*url}",
    new { controller = "Home", action = "ApiNotFound" });

You would end up with the following behavior:

• /controller => No extension, so serve SPA default page from HomeController.Index and let SPA handle routing
• /file.txt => Extension detected, serve static file
• /api/controller => proper API response (use attribute routing or set up another map for the API controllers)
• /api/non-existent-route => 404 NotFound() returned from HomeController.ApiNotFound

In many cases you'll want an API in a separate project, but this is a viable alternative.