Inject framework HttpClient to support prerendering behavior on server instead of baking in the HttpClient on the client project

DeepDrftWeb/Startup.cs

@@ -16,6 +16,32 @@ public static class Startup
         // Add Track services
         builder.Services.AddScoped<TrackRepository>();
         builder.Services.AddScoped<TrackService>();
+    }
+    
+    public static string GetKestrelUrl(this WebApplicationBuilder builder)
+    {
+        // Check all the places Kestrel URL can be configured
+        var urls = builder.Configuration["ASPNETCORE_URLS"] 
+                   ?? builder.Configuration["urls"];
+                  
+        if (!string.IsNullOrEmpty(urls))
+        {
+            return urls.Split(';')[0].Trim();
+        }
 
+        // Check Kestrel endpoints configuration
+        var kestrelSection = builder.Configuration.GetSection("Kestrel:Endpoints");
+        var firstEndpoint = kestrelSection.GetChildren().FirstOrDefault();
+        var endpointUrl = firstEndpoint?["Url"];
+        
+        if (!string.IsNullOrEmpty(endpointUrl))
+        {
+            return endpointUrl;
+        }
+
+        // ASP.NET Core defaults
+        return builder.Environment.IsDevelopment() 
+            ? "https://localhost:5001" 
+            : "http://localhost:5000";
     }
 }