Hosting of my asp net core web application with kestrel only

an ASP.NET Core web application with Kestrel only can provide a lightweight and efficient solution for deploying your application. Kestrel is a -platform web that is built into ASP.NET Core and is designed to handle HTTP requests directly. In this article, we will explore how to host an ASP.NET Core web application using Kestrel only, along with some examples to illustrate the process.

To begin, let's take a look at the basic structure of an ASP.NET Core web application. The following code snippet represents a simple ASP.NET Core web application:


using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Hosting;

public class Startup
{
    public void ( app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.();
        }

        app.UseRouting();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapGet("/", async context =>
            {
                await context.Response.WriteAsync("Hello, World!");
            });
        });
    }
}

In this , we have a simple web application that responds with “Hello, World!” when accessed. Now, let's see how we can host this application using Kestrel only.

To host an ASP.NET Core web application with Kestrel only, we need to configure the web host builder in the `Program.cs` file. The following code snippet demonstrates how to configure the web host builder to use Kestrel as the web server:


using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Hosting;

public class Program
{
    public static void Main([] args)
    {
        CreateHostBuilder(args).Build().Run();
    }

    public static IHostBuilder CreateHostBuilder(string[] args) =>
        Host.CreateDefaultBuilder(args)
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder.UseKestrel();
                webBuilder.UseStartup();
            });
}

In this code snippet, we use the `UseKestrel()` method to configure Kestrel as the web server. We also the `Startup` class as the startup configuration for our application.

Now that we have configured the web host builder, we can run our ASP.NET Core web application with Kestrel only. To do this, open a command prompt or terminal and navigate to the project directory. Then, execute the following command:


 run

This command will build and run the application using Kestrel as the web server. You should see an output similar to the following:


info: Microsoft.Hosting.Lifetime[0]
      Now listening on: http://localhost:5000
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.

Congratulations! You have successfully hosted your ASP.NET Core web application with Kestrel only. You can now access your application by navigating to `http://localhost:5000` in your web browser.

Conclusion

In this article, we have explored how to host an ASP.NET Core web application with Kestrel only. By using Kestrel as the web server, you can achieve a lightweight and efficient hosting solution for your application. We have provided examples and step-by-step instructions to guide you through the process. Now, you can confidently deploy your ASP.NET Core web application using Kestrel only and take advantage of its performance benefits.

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