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https://github.com/autofac/Autofac

An addictive .NET IoC container
https://github.com/autofac/Autofac

autofac c-sharp dependency-injection ioc-container netcore netstandard

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An addictive .NET IoC container

Lists

README 

        
![Autofac character](https://raw.githubusercontent.com/autofac/autofac.github.com/8737b1213a85ad8157ab7958aeb560c7af5eb494/img/autofac_web-banner_character_fixed_width.svg)

![Autofac logo](https://raw.githubusercontent.com/autofac/autofac.github.com/8737b1213a85ad8157ab7958aeb560c7af5eb494/img/autofac_logo-type_fixed_height.svg)



Autofac is an [IoC container](http://martinfowler.com/articles/injection.html) for Microsoft .NET. It manages the dependencies between classes so that **applications stay easy to change as they grow** in size and complexity. This is achieved by treating regular .NET classes as *[components](https://autofac.readthedocs.io/en/latest/glossary.html)*.



[![Build status](https://ci.appveyor.com/api/projects/status/s0vgb4m8tv9ar7we?svg=true)](https://ci.appveyor.com/project/Autofac/autofac) [![codecov](https://codecov.io/gh/Autofac/Autofac/branch/develop/graph/badge.svg)](https://codecov.io/gh/Autofac/Autofac) [![NuGet](https://img.shields.io/nuget/v/Autofac.svg)](https://nuget.org/packages/Autofac)



[![Autofac on Stack Overflow](https://img.shields.io/badge/stack%20overflow-autofac-orange.svg)](https://stackoverflow.com/questions/tagged/autofac) [![Join the chat at https://gitter.im/autofac/autofac](https://img.shields.io/gitter/room/autofac/autofac.svg)](https://gitter.im/autofac/autofac)



## Get Packages



You can get Autofac by [grabbing the latest NuGet package](https://www.nuget.org/packages/Autofac/). There are several [application integration and extended functionality packages to choose from](https://www.nuget.org/profiles/Autofac). If you're feeling adventurous, [continuous integration builds are on MyGet](https://www.myget.org/gallery/autofac).



[Release notes are available on GitHub](https://github.com/autofac/Autofac/releases).



## Get Help



**Need help with Autofac?** We have [a documentation site](https://autofac.readthedocs.io/) as well as [API documentation](https://autofac.org/apidoc/). We're ready to answer your questions on [Stack Overflow](https://stackoverflow.com/questions/tagged/autofac) or check out the [discussion forum](https://groups.google.com/forum/#forum/autofac).



## Get Started



Our [Getting Started](https://autofac.readthedocs.io/en/latest/getting-started/index.html) tutorial walks you through integrating Autofac with a simple application and gives you some starting points for learning more.



Super-duper quick start:



[Register components with a `ContainerBuilder`](https://autofac.readthedocs.io/en/latest/register/registration.html) and then build the component container.



```csharp

var builder = new ContainerBuilder();



builder.Register(c => new TaskController(c.Resolve()));

builder.RegisterType();

builder.RegisterInstance(new TaskController());

builder.RegisterAssemblyTypes(controllerAssembly);



var container = builder.Build();

```



[Resolve services from a lifetime scope](https://autofac.readthedocs.io/en/latest/resolve/index.html) - either the container or a nested scope:



```csharp

var taskController = container.Resolve();

```



There is a growing number of [application integration libraries](https://autofac.readthedocs.io/en/latest/integration/index.html) that make using Autofac with your application a snap. Support for several popular frameworks is also available through the "Extras" packages.



**[Intrigued? Check out our Getting Started walkthrough!](https://autofac.readthedocs.io/en/latest/getting-started/index.html)**



## Project



Autofac is licensed under the MIT license, so you can comfortably use it in commercial applications (we still love [contributions](https://autofac.readthedocs.io/en/latest/contributors.html) though).



**File issues in the repo with the associated feature/code.**



- [Autofac](https://github.com/autofac/Autofac) - Core dependency resolution and common functions (this repo).

- [Autofac.AspNetCore.Multitenant](https://github.com/autofac/Autofac.AspNetCore.Multitenant) - Multitenant DI support for ASP.NET Core applications.

- [Autofac.Configuration](https://github.com/autofac/Autofac.Configuration) - JSON/XML file-based configuration support.

- [Autofac.Diagnostics.DotGraph](https://github.com/autofac/Autofac.Diagnostics.DotGraph) - Diagnostics support to enable DOT graph visualization of resolve requests.

- [Autofac.Extensions.DependencyInjection](https://github.com/autofac/Autofac.Extensions.DependencyInjection) - .NET Core integration for Autofac.

- [Autofac.Extras.AggregateService](https://github.com/autofac/Autofac.Extras.AggregateService) - Dynamic aggregate service implementation generation.

- [Autofac.Extras.AttributeMetadata](https://github.com/autofac/Autofac.Extras.AttributeMetadata) - Metadata scanning/filtering through attributes.

- [Autofac.Extras.CommonServiceLocator](https://github.com/autofac/Autofac.Extras.CommonServiceLocator) - Common Service Locator implementation backed by Autofac.

- [Autofac.Extras.DynamicProxy](https://github.com/autofac/Autofac.Extras.DynamicProxy) - Decorators and interceptors.

- [Autofac.Extras.FakeItEasy](https://github.com/autofac/Autofac.Extras.FakeItEasy) - FakeItEasy mocking framework integration.

- [Autofac.Extras.Moq](https://github.com/autofac/Autofac.Extras.Moq) - Moq mocking framework integration.

- [Autofac.Mef](https://github.com/autofac/Autofac.Mef) - MEF catalog integration.

- [Autofac.Multitenant](https://github.com/autofac/Autofac.Multitenant) - Multitenant dependency resolution support.

- [Autofac.Multitenant.Wcf](https://github.com/autofac/Autofac.Multitenant.Wcf) - Multitenant WCF service hosting.

- [Autofac.Mvc](https://github.com/autofac/Autofac.Mvc) - ASP.NET MVC integration.

- [Autofac.Mvc.Owin](https://github.com/autofac/Autofac.Mvc.Owin) - OWIN support for ASP.NET MVC.

- [Autofac.Owin](https://github.com/autofac/Autofac.Owin) - Core OWIN support - shared middleware for request lifetime integration.

- [Autofac.Pooling](https://github.com/autofac/Autofac.Pooling) - Support for pooled instance lifetime scopes.

- [Autofac.ServiceFabric](https://github.com/autofac/Autofac.ServiceFabric) - Application integration for Service Fabric services.

- [Autofac.SignalR](https://github.com/autofac/Autofac.SignalR) - Application integration for SignalR.

- [Autofac.Wcf](https://github.com/autofac/Autofac.Wcf) - WCF service hosting.

- [Autofac.Web](https://github.com/autofac/Autofac.Web) - ASP.NET web forms integration.

- [Autofac.WebApi](https://github.com/autofac/Autofac.WebApi) - Application integration for Web API.

- [Autofac.WebApi.Owin](https://github.com/autofac/Autofac.WebApi.Owin) - OWIN support for Web API.



## Sponsors



Autofac is supported by AWS. Thanks for your contribution!



## Contributing / Pull Requests



Refer to the [Contributor Guide](https://github.com/autofac/.github/blob/master/CONTRIBUTING.md) for setting up and building Autofac source.



You can also open this repository right now [in VS Code](https://open.vscode.dev/autofac/Autofac).