Documented: "Using the Autofac Registration API"

docs/en/Autofac-Integration.md

@@ -1,12 +1,12 @@
 # Autofac Integration
 
-Autofac is one of the most used dependency injection frameworks for .Net. It provides some advanced features compared to .Net Core standard DI library, like dynamic proxying and property injection.
+[Autofac](https://autofac.org/) is one of the most used dependency injection frameworks for .NET. It provides advanced features compared to .Net Core's standard DI library, like dynamic proxying and property injection.
 
 ## Install Autofac Integration
 
-> All startup templates and samples are Autofac integrated. So, most of the time you don't need to manually install this package.
+> All the [startup templates](Startup-Templates/Index.md) and samples are Autofac integrated. So, most of the time you don't need to manually install this package.
 
-Install [Volo.Abp.Autofac](https://www.nuget.org/packages/Volo.Abp.Autofac) nuget package to your project (for a multi-projects application, it's suggested to add to the executable/web project.)
+Install [Volo.Abp.Autofac](https://www.nuget.org/packages/Volo.Abp.Autofac) nuget package to your project (for a multi-projects application, it's suggested to add to the executable/web project).
 
 ````
 Install-Package Volo.Abp.Autofac
@@ -52,6 +52,23 @@ public class Program
 }
 ````
 
+If you are using the static `WebApplication` class, you can call the `UseAutofac()` extension method as shown below:
+
+````csharp
+public class Program
+{
+    public async static Task Main(string[] args)
+    {
+        var builder = WebApplication.CreateBuilder(args);
+        builder.Host.UseAutofac(); // Integrate Autofac!
+        await builder.AddApplicationAsync<MyProjectNameWebModule>();
+        var app = builder.Build();
+        await app.InitializeApplicationAsync();
+        await app.RunAsync();
+    }
+}
+````
+
 ### Console Application
 
 Call `UseAutofac()` method in the `AbpApplicationFactory.Create` options as shown below:
@@ -79,3 +96,17 @@ namespace AbpConsoleDemo
 }
 ````
 
+## Using the Autofac Registration API
+
+If you want to use Autofac's advanced [registration API](https://autofac.readthedocs.io/en/latest/register/registration.html), you need to access the `ContainerBuilder` object. [Volo.Abp.Autofac](https://www.nuget.org/packages/Volo.Abp.Autofac) nuget package defines the `IServiceCollection.GetContainerBuilder()` extension method to obtain the `ContainerBuilder` object.
+
+**Example: Get the `ContainerBuilder` object in the `ConfigureServices` method of your [module class](Module-Development-Basics.md)**
+
+````csharp
+public override void ConfigureServices(ServiceConfigurationContext context)
+{
+    var containerBuilder = context.Services.GetContainerBuilder();
+    containerBuilder.RegisterType<MyService>(); // Using Autofac's registration API
+}
+````
+