Improved loading times, improved SEO for lighthouse

src/Program.cs

@@ -48,8 +48,8 @@ builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationSc
 builder.Services.AddResponseCompression(options =>
 {
     options.EnableForHttps = true;
-    options.MimeTypes = new[]
-    {
+    options.MimeTypes =
+    [
         "text/plain",
         "text/css",
         "application/javascript",
@@ -58,7 +58,7 @@ builder.Services.AddResponseCompression(options =>
         "text/xml",
         "application/json",
         "image/svg+xml"
-    };
+    ];
 });
 
 var app = builder.Build();
@@ -89,7 +89,22 @@ if (app.Environment.IsDevelopment())
     app.UseSwaggerUI();
 }
 
-app.UseStaticFiles();
+app.UseStaticFiles(new StaticFileOptions
+{
+    OnPrepareResponse = ctx =>
+    {
+        string requestPath = ctx.Context.Request.Path.ToString();
+        if (requestPath.EndsWith(".css") || requestPath.EndsWith(".js"))
+        {
+            ctx.Context.Response.GetTypedHeaders().CacheControl =
+                new Microsoft.Net.Http.Headers.CacheControlHeaderValue()
+                {
+                    Public = true,
+                    MaxAge = TimeSpan.FromDays(365)
+                };
+        }
+    }
+});
 app.UseRouting();
 app.UseAuthorization();
 app.UseResponseCompression();