{"id":615,"date":"2019-09-24T16:59:15","date_gmt":"2019-09-24T07:59:15","guid":{"rendered":"http:\/\/csharp.ihavenomoney.co.kr\/?p=615"},"modified":"2019-09-24T16:59:15","modified_gmt":"2019-09-24T07:59:15","slug":"hello-world-startup-istartupfilter","status":"publish","type":"post","link":"https:\/\/csharp.ihavenomoney.co.kr\/?p=615","title":{"rendered":"hello-world-startup-istartupfilter"},"content":{"rendered":"\n<pre class=\"lang:c# decode:true \" >using Microsoft.AspNetCore.Hosting; \/\/IWebHostBuilder\r\nusing Microsoft.AspNetCore.Builder; \/\/IApplicationBuilder\r\nusing Microsoft.AspNetCore.Http; \/\/WriteAsync\r\nusing Microsoft.AspNetCore; \/\/webHost\r\nusing Microsoft.Extensions.Logging;\/\/ILoggerFactory\r\nusing Microsoft.Extensions.DependencyInjection; \/\/ IServiceCollection\r\nusing System.Threading.Tasks;\r\nusing System; \/\/IStartupFilter\r\n\r\nnamespace WebApplication1\r\n{\r\n\r\n    public class GreetingStartupFilter : IStartupFilter\r\n    {\r\n        public Action&lt;IApplicationBuilder&gt; Configure(Action&lt;IApplicationBuilder&gt; next)\r\n        {\r\n            return builder =&gt;\r\n            {\r\n                builder.UseMiddleware&lt;GreetingMiddleware&gt;();\r\n                builder.UseMiddleware&lt;HelloWorldMiddleware&gt;();\r\n                next(builder);\r\n            };\r\n        }\r\n    }\r\n\r\n    public class HelloWorldMiddleware\r\n    {\r\n        public HelloWorldMiddleware(RequestDelegate next)\r\n        {\r\n\r\n        }\r\n\r\n        public async Task Invoke(HttpContext context)\r\n        {\r\n            await context.Response.WriteAsync($\"{context.Items[\"Greetings\"]}\");\r\n        }\r\n    }\r\n\r\n    public class GreetingMiddleware\r\n    {\r\n        RequestDelegate _next;\r\n        public GreetingMiddleware(RequestDelegate next)\r\n        {\r\n            _next = next;\r\n        }\r\n\r\n        public async Task Invoke(HttpContext context)\r\n        {\r\n            context.Items[\"Greetings\"] = \"Hello world from GreetingMiddleware\";\r\n            await _next(context);\r\n        }\r\n    }\r\n\r\n\r\n    public class Startup\r\n    {\r\n        public Startup(IHostingEnvironment env, ILoggerFactory logger)\r\n        {\r\n            \/\/These are two services available at constructor\r\n        }\r\n\r\n        public void ConfigureServices(IServiceCollection services)\r\n        {\r\n            services.AddTransient&lt;IStartupFilter, GreetingStartupFilter&gt;();\r\n        }\r\n\r\n\r\n        public void Configure(IApplicationBuilder app)\r\n        {\r\n            \r\n        }\r\n    }\r\n\r\n    public class Program\r\n    {\r\n        public static void Main(string[] args)\r\n        {\r\n            CreateWebHostBuilder(args).Build().Run();\r\n        }\r\n\r\n        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =&gt;\r\n            WebHost.CreateDefaultBuilder(args)\r\n                .UseStartup&lt;Startup&gt;()\r\n                .UseEnvironment(\"Development\"); \/\/You can change this to \"Production\" to use StartupProduction\r\n    }\r\n}<\/pre>\n<p>\uacb0\uacfc :<br \/>\nHello world from GreetingMiddleware<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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.Threading.Tasks; using System; \/\/IStartupFilter namespace WebApplication1 { public class GreetingStartupFilter : IStartupFilter { public Action&lt;IApplicationBuilder&gt; Configure(Action&lt;IApplicationBuilder&gt; next) { return builder =&gt; { builder.UseMiddleware&lt;GreetingMiddleware&gt;(); builder.UseMiddleware&lt;HelloWorldMiddleware&gt;(); next(builder); }; } } public class HelloWorldMiddleware { public HelloWorldMiddleware(RequestDelegate next) {\u2026 <span class=\"read-more\"><a href=\"https:\/\/csharp.ihavenomoney.co.kr\/?p=615\">Read More &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[],"class_list":["post-615","post","type-post","status-publish","format-standard","hentry","category-net-core"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=615"}],"version-history":[{"count":1,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/615\/revisions"}],"predecessor-version":[{"id":616,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/615\/revisions\/616"}],"wp:attachment":[{"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}