How do I implement dependency injection in C#?

How do I implement dependency injection in C#?

To implement dependency injection in C#, you can use a built-in framework like Microsoft.Extensions.DependencyInjection. Would you like a code example?

Yes, please provide a code example.

Sure! Here's a simple example:

public interface IService {
    void Serve();
}

public class Service : IService {
    public void Serve() {
        Console.WriteLine("Service Called");
    }
}

public class Consumer {
    private readonly IService _service;

    public Consumer(IService service) {
        _service = service;
    }

    public void Start() {
        _service.Serve();
    }
}

// In your Main method:
var serviceProvider = new ServiceCollection()
    .AddTransient<IService, Service>()
    .AddTransient<Consumer>()
    .BuildServiceProvider();

var consumer = serviceProvider.GetService<Consumer>();
consumer.Start();

What are the benefits of using dependency injection?

Dependency injection promotes loose coupling, enhances testability, and improves code maintainability. It allows for easier swapping of implementations.