Скачать или смотреть 19. ASP.NET Core dependency injection in Darija Arabic

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Title : 19. ASP.NET Core dependency injection in Darija Arabic

In this video we will discuss dependency injection in detail with an example.

Registering Services with the ASP.NET Core Dependency Injection Container :

ASP.NET core provides the following 3 methods to register services with the dependency injection container. The method that we use determines the lifetime of the registered service.

AddSingleton() - As the name implies, AddSingleton() method creates a Singleton service. A Singleton service is created when it is first requested. This same instance is then used by all the subsequent requests. So in general, a Singleton service is created only one time per application and that single instance is used throughout the application life time.

AddTransient() - This method creates a Transient service. A new instance of a Transient service is created each time it is requested.

AddScoped() - This method creates a Scoped service. A new instance of a Scoped service is created once per request within the scope. For example, in a web application it creates 1 instance per each http request but uses the same instance in the other calls within that same web request.

Please do not worry, if this is a bit confusing at the moment. We will be revisiting these 3 methods several times in our upcoming videos in this series.


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