There are three ways of doing DI: - Scoped, Transient and Singleton. So, I would suggest to go through the below explanation, understand it and create your simple one liner. This is an easy topic to understand but very difficult to explain to interviewer in simple words. Explain the various way of doing DI in MVC?
Startup.cs file helps to configure Dependency injection and Middle wares. Explain the importance of Startup.cs file in ASP.NET Core ? Middlewares are added in “Configure” method of Startup.cs file. How to implement middleware in MVC Core ? Middleware helps to add pre-processing logic before the request is sent to the controller. To implement DI we need to add the service in “ConfigureServices” method which is in Startup.cs file. Why do we need dependency injection?īy using DI classes are decoupled from each other so you make changes at one place its reflected all over the places. This helps to create a proper decoupled system. So, in simple words the object creation process is isolated from the caller. To read configuration from appsettings.json you need to use “IConfiguration” interface What is dependency injection?ĭependency injection is practice of providing dependent objects for a class from outside rather than the class creating it. How can we read configuration file in ASP.NET Core ? Where do we store configuration in ASP.NET Core ?Ĭonfiguration data is stored in a json file called as Appsettings.json. So the first hit comes to the controller, it loads the model and binds the model data to the view. Second layer is Model which is a simple class which has business validations. The first layer is the view which has things like Color, UI positioning, CSS, input controls, buttons and so on. MVC is an architecture pattern where we divide project in to three layers.
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