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:
Call `UseAutofac()` method in the `AbpApplicationFactory.Create` options as shown below:
@ -79,3 +96,18 @@ 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
}
````
> You should install the [Volo.Abp.Autofac](https://www.nuget.org/packages/Volo.Abp.Autofac) nuget package to the project that you want to use the Autofac API.
The following documents explain how to migrate your existing ABP applications. We write migration documents only if you need to take an action while upgrading your solution. Otherwise, you can easily upgrade your solution using the [abp update command](../Upgrading.md).
liangshiwei
4 years ago
GitHub