dschenkelman/needle

Needle Dependency Injection Container is a lightweight dependency injection container with a fluent API.

Needle Dependency Injection Container

Needle Dependency Injection Container is a lightweight dependency injection container with a fluent API. The main goal of the project is help developers learn Depencency Injection, how a DI container could be created, and similar stuff.

Samples

Simple type mapping:

INeedleContainer needleContainer = new NeedleContainer(); 
needleContainer.Map<IForceEnlightened>() // when we request an IForceEnlightened
  .To<Jedi>() // provide a Jedi
  .Commit(); // save the mapping

Type mappings with specific identifiers:

needleContainer
    .Map<IForceEnlightened>()
    .To<Jedi>()
    .WithId("Jedi")
    .Commit();

needleContainer
    .Map<IForceEnlightened>()
    .To<Sith>()
    .WithId("Sith")
    .Commit();

Lifetime management:

needleContainer
    .Map<IForceEnlightened>()
    .To<Jedi>()
    .UsingLifetime(RegistrationLifetime.Singleton)
    .Commit();

Putting it all together:

needleContainer
    .Map<IForceEnlightened>()
    .To<Jedi>()
    .WithId("Yoda")
    .UsingLifetime(RegistrationLifetime.Singleton)
    .Commit();

NuGet Package

You can now download the alpha (0.1) version of the Needle Container using NuGet. In the Package Manager window type:

PM> Install-Package NeedleContainer

Check out the release notes.