properly configure output caching

SimpleCDN/Endpoints/CDN.cs

@@ -13,7 +13,6 @@ public static IEndpointRouteBuilder RegisterCDNEndpoints(this IEndpointRouteBuil
 			{
 				try
 				{
-
 					if (loader.GetFile(route) is CDNFile file)
 					{
 						var typedAccept = ctx.Request.GetTypedHeaders().Accept;
@@ -57,6 +56,7 @@ public static IEndpointRouteBuilder RegisterCDNEndpoints(this IEndpointRouteBuil
 			}).CacheOutput(policy =>
 			{
 				// cache the response for 1 minute to reduce load on the server
+				// this is another layer of caching, on top of the CDNLoader cache.
 				policy.Cache()
 					.Expire(TimeSpan.FromMinutes(1))
 					.SetVaryByRouteValue("route")

SimpleCDN/Program.cs

@@ -20,6 +20,15 @@ private static void Main(string[] args)
 				.AddJsonFile($"appsettings.{builder.Environment.EnvironmentName}.json", optional: true, reloadOnChange: true)
 				.AddCommandLine(args);
 
+			builder.Services.AddOutputCache(options =>
+			{
+				var configuration = options.ApplicationServices.GetRequiredService<CDNConfiguration>();
+
+				// output cache is 1/10th of memory cache
+				// in bytes               in kilobytes
+				options.MaximumBodySize = configuration.MaxMemoryCacheSize * 100;
+			});
+
 			builder.Services.MapConfiguration();
 
 			// for now, we use a simple size-limited in-memory cache.
@@ -35,6 +44,7 @@ private static void Main(string[] args)
 			var app = builder.Build();
 
 			app.RegisterCDNEndpoints();
+			app.UseOutputCache();
 
 			app.Run();
 		}