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

If you're already in the routing stage, you've gone past the point where static files are served in the pipeline. Your startup will look something like this:

app.UseStaticFiles();

...

app.UseMvc(...);

The order here is important. So your app will look for static files first, which makes sense from a performance standpoint - no need to run through MVC pipeline if you just want to throw out a static file.

You can create a catch-all controller action that will return the content of the file instead. For example (stealing the code in your comment):

public IActionResult Spa()
{
    return File("~/index.html", "text/html");
}