Change the headers of static files in Asp.net Core

Question

I am using package Microsoft.AspNet.StaticFiles and configuring it in Startup.cs as app.UseStaticFiles(). How can I change the headers

Answer 1

Based on Josh Mouch's answer above, added code to determine if it's a pdf file

Startup.cs:

      app.UseStaticFiles(new StaticFileOptions
      {
        OnPrepareResponse = ctx =>
          {
            if(ctx.File.Name.ToLower().EndsWith(".pdf"))
            {
              ctx.Context.Response.Headers.Append("Cache-Control", "public,max-age=86400");
            }
            else
            {
              ctx.Context.Response.Headers.Append("Cache-Control", "public,max-age=31104000");
            }
          }
      });