Enterprise Application Architecture with .NET Core

Introducing dependency injection

Dependency Injection design pattern fulfills the dependency inversion principle of the SOLID design principles. There are three main forms of dependency injection:

• Constructor injection: An example of this is shown in the DIP section
• Setter injection: Let's look at an example code for setter injection:

    public class OrderProcessorWithSetter : IOrderProcessor     {         private IOrderRepository _orderRepository;         private IOrderNotifier _orderNotifier;         public IOrderRepository Repository         {             get { return _orderRepository; }             set { _orderRepository = value; }         }         public IOrderNotifier Notifier         {             get { return _orderNotifier; }             set { _orderNotifier = value; }         }         public void Process(IOrder order)         {  //Perform validations.. ...