middleware-8 – C# (Csharp) 프로그래밍


using Microsoft.AspNetCore.Hosting; //IWebHostBuilder
using Microsoft.AspNetCore.Builder; //IApplicationBuilder
using Microsoft.AspNetCore.Http; //WriteAsync
using System.Threading.Tasks;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.AspNetCore.Builder.Extensions;
using Microsoft.AspNetCore;

namespace WebApplication1
{
    public class Content
    {
        public string SayHello() => "Hello world";
    }

    public class Greeting
    {
        public string Greet() => "Good morning";
    }

    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddSingleton<Content>();
        }

        public void Configure(IApplicationBuilder app)
        {
            //Pay attention to the order of the parameter passed.
            //If your parameter is distinct, the order does not matter, As you can see here we put Greeting
            //at the end of the parameter passing although in the constructor Greeting was the second on the parameter list.
            //However if you pass multiple parameters of the same type, the order matters. 
            app.UseMiddleware<TerminalMiddleware>("Cairo", "Dody", new Greeting());
        }
    }

    public class TerminalMiddleware
    {
        readonly Content _content;
        readonly string _city;
        readonly Greeting _greet;
        readonly string _name;

        public TerminalMiddleware(RequestDelegate next, Greeting greet, string city, Content cnt, string name)
        {
            //We are not using the parameter next in this middleware since this middleware is terminal
            _content = cnt;
            _city = city;
            _greet = greet;
            _name = name;
        }
        public async Task Invoke(HttpContext context)
        {
            await context.Response.WriteAsync($"{_greet.Greet()} {_name}, {_content.SayHello()} from {_city}");
        }
    }

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

            public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
                WebHost.CreateDefaultBuilder(args)
                    .UseStartup<Startup>()
                    .UseEnvironment("Development");
        }
}

using Microsoft.AspNetCore.Hosting; //IWebHostBuilder

using Microsoft.AspNetCore.Builder; //IApplicationBuilder

using Microsoft.AspNetCore.Http; //WriteAsync

using System.Threading.Tasks;

using Microsoft.Extensions.DependencyInjection;

using Microsoft.AspNetCore.Builder.Extensions;

using Microsoft.AspNetCore;

namespace WebApplication1

{

public class Content

{

public string SayHello() => "Hello world";

}

public class Greeting

{

public string Greet() => "Good morning";

}

public class Startup

{

public void ConfigureServices(IServiceCollection services)

{

services.AddSingleton<Content>();

}

public void Configure(IApplicationBuilder app)

{

//Pay attention to the order of the parameter passed.

//If your parameter is distinct, the order does not matter, As you can see here we put Greeting

//at the end of the parameter passing although in the constructor Greeting was the second on the parameter list.

//However if you pass multiple parameters of the same type, the order matters.

app.UseMiddleware<TerminalMiddleware>("Cairo", "Dody", new Greeting());

}

public class TerminalMiddleware

{

readonly Content _content;

readonly string _city;

readonly Greeting _greet;

readonly string _name;

public TerminalMiddleware(RequestDelegate next, Greeting greet, string city, Content cnt, string name)

{

//We are not using the parameter next in this middleware since this middleware is terminal

_content = cnt;

_city = city;

_greet = greet;

_name = name;

}

public async Task Invoke(HttpContext context)

{

await context.Response.WriteAsync($"{_greet.Greet()} {_name}, {_content.SayHello()} from {_city}");

}

public class Program

{

public static void Main(string[] args)

{

CreateWebHostBuilder(args).Build().Run();

}

public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>

WebHost.CreateDefaultBuilder(args)

.UseStartup<Startup>()

.UseEnvironment("Development");

}

결과 :
Good morning Dody, Hello world from Cairo