MVC Core Bootstrapping process- Mvc Bootstrapping process starts with two files the first Program.cs and then startup.cs.Bootstrapping means how will start which methods will be invoked and so on.

When MVC core application first starts it execute program.cs file.The main goal of program.cs file is to start the Kestrel web server.

It is a default web server to execute ASP.NET core.

To create instance of IWebHost IWebHostBuilder WebHost is used.

The CreateDefaultBuilder() method of webhost helps to creates a new instance of WebHostBuilder.

CreateWebHostBuilder creates the host and provides the configuration to it.

The Build() method builds it using the given configuration.The Run() method runs it.Web Host Create CreateWebHostBuilder and returns it back.

Later constructor initializes configuration object.

Configure Services:- ConfigureServices will be execute when complete constructor execution.

In ConfigureServices method we only add services which we want to used in our application.

By default mvc service is add in that method.

Configure:- In configure method services are configured and use the services.

In ConfigureService method Once we add some service, it will be available to Configure method to be used.

When we run application web server is started and only once the program.cs and startup.cs file is loaded.

Now lets see practically how its work for that I am just add some debugging points and run application(press F5): here we can see that it first go to program.cs click on continue.

Then control can go to startup.cs where we have our constructor,press F5 to continue.

Then it go to Configure where we can use our services, Click on continue.

Request-Response process: When we start our application, it will be show Index view.

Controller send request to model.Model access the data from sql server and load on view and response to end user.

Output: Thank you.

Server Core Startup Programs