create a console application that exposes a rest api in csharp

main.cs
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;

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

    public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
        WebHost.CreateDefaultBuilder(args)
            .ConfigureServices(services => services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>())
            .Configure(app =>
            {
                app.Run(async context =>
                {
                    if (context.Request.Path == "/api/status")
                    {
                        context.Response.StatusCode = 200;
                        await context.Response.WriteAsync("OK");
                    }
                    else
                    {
                        context.Response.StatusCode = 404;
                    }
                });
            });
}
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