hello-world-startup-basic-request-headers-typed


using Microsoft.AspNetCore.Hosting; //IWebHostBuilder
using Microsoft.AspNetCore.Builder; //IApplicationBuilder
using Microsoft.AspNetCore.Http; //WriteAsync
using Microsoft.AspNetCore; //webHost
using Microsoft.Extensions.Logging;//ILoggerFactory
using Microsoft.Extensions.DependencyInjection; // IServiceCollection
using System.Linq;

namespace WebApplication1
{
    public class Startup
    {
        public Startup(IHostingEnvironment env, ILoggerFactory logger)
        {
            //These are two services available at constructor
        }

        public void ConfigureServices(IServiceCollection services)
        {
            //This is the only service available at ConfigureServices
        }

        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory logger)
        {
            app.Run(context =>
            {
                var typedHeaders = context.Request.GetTypedHeaders();

                return context.Response.WriteAsync($@"
                                There are more common HTTP headers properties available in HttpContext.Request.GetTypedHeaders()              
                                Accept: {typedHeaders.Accept[0]}
                                Accept Language : {typedHeaders.AcceptLanguage.FirstOrDefault()?.Value} // 오류남 주석처리                
                ");
            });
        }
    }



    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"); //You can change this to "Production" to use StartupProduction
    }
}

using Microsoft.AspNetCore.Hosting; //IWebHostBuilder

using Microsoft.AspNetCore.Builder; //IApplicationBuilder

using Microsoft.AspNetCore.Http; //WriteAsync

using Microsoft.AspNetCore; //webHost

using Microsoft.Extensions.Logging;//ILoggerFactory

using Microsoft.Extensions.DependencyInjection; // IServiceCollection

using System.Linq;

namespace WebApplication1

{

public class Startup

{

public Startup(IHostingEnvironment env, ILoggerFactory logger)

{

//These are two services available at constructor

}

public void ConfigureServices(IServiceCollection services)

{

//This is the only service available at ConfigureServices

}

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory logger)

{

app.Run(context =>

{

var typedHeaders = context.Request.GetTypedHeaders();

return context.Response.WriteAsync($@"

There are more common HTTP headers properties available in HttpContext.Request.GetTypedHeaders()

Accept: {typedHeaders.Accept[0]}

Accept Language : {typedHeaders.AcceptLanguage.FirstOrDefault()?.Value} // 오류남 주석처리

");

});

}

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"); //You can change this to "Production" to use StartupProduction

}

결과 : There are more common HTTP headers properties available in HttpContext.Request.GetTypedHeaders()Accept: text/html