Add lifetime hosted service to detect fully started ASP.NET Core

ElectronNET.API/App.cs

@@ -6,6 +6,7 @@ using System;
 using System.Runtime.InteropServices;
 using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.Extensions.Hosting;
 
 namespace ElectronNET.API
 {
@@ -352,6 +353,11 @@ namespace ElectronNET.API
 
         private event Action<bool> _accessibilitySupportChanged;
 
+        /// <summary>
+        /// Application host fully started.
+        /// </summary>
+        public bool IsReady { get; internal set; }
+
         /// <summary>
         /// A property that indicates the current application's name, which is the
         /// name in the application's `package.json` file.

ElectronNET.API/LifetimeServiceHost.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Hosting;
+
+namespace ElectronNET.API
+{
+    /// <summary>
+    /// Base class that reports if ASP.NET Core has fully started.
+    /// </summary>
+    internal class LifetimeServiceHost : IHostedService
+    {
+        public LifetimeServiceHost(IHostApplicationLifetime lifetime)
+        {
+            lifetime.ApplicationStarted.Register(() =>
+            {
+                App.Instance.IsReady = true;
+
+                Console.WriteLine("ASP.NET Core host has fully started.");
+            });
+        }
+
+        /// <summary>
+        /// Triggered when the application host is ready to start the service.
+        /// </summary>
+        /// <param name="cancellationToken">Indicates that the start process has been aborted.</param>
+        public Task StartAsync(CancellationToken cancellationToken)
+        {
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Triggered when the application host is performing a graceful shutdown.
+        /// </summary>
+        /// <param name="cancellationToken">Indicates that the shutdown process should no longer be graceful.</param>
+        public Task StopAsync(CancellationToken cancellationToken)
+        {
+            return Task.CompletedTask;
+        }
+    }
+}

ElectronNET.API/WebHostBuilderExtensions.cs

@@ -1,6 +1,7 @@
 using Microsoft.AspNetCore.Hosting;
 using System;
 using System.IO;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace ElectronNET.API
 {
@@ -32,6 +33,11 @@ namespace ElectronNET.API
 
             if (HybridSupport.IsElectronActive)
             {
+                builder.ConfigureServices(services =>
+                {
+                    services.AddHostedService<LifetimeServiceHost>();
+                });
+
                 // check for the content folder if its exists in base director otherwise no need to include
                 // It was used before because we are publishing the project which copies everything to bin folder and contentroot wwwroot was folder there.
                 // now we have implemented the live reload if app is run using /watch then we need to use the default project path.
@@ -49,4 +55,4 @@ namespace ElectronNET.API
             return builder;
         }
     }
-}
+}