{"id":619,"date":"2019-09-24T17:15:12","date_gmt":"2019-09-24T08:15:12","guid":{"rendered":"http:\/\/csharp.ihavenomoney.co.kr\/?p=619"},"modified":"2019-09-24T17:15:12","modified_gmt":"2019-09-24T08:15:12","slug":"hello-world-startup-multiple-configure-environment-services","status":"publish","type":"post","link":"https:\/\/csharp.ihavenomoney.co.kr\/?p=619","title":{"rendered":"hello-world-startup-multiple-configure-environment-services"},"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\n\r\nnamespace WebApplication1\r\n{\r\n    public class Greet\r\n    {\r\n        string _greeting;\r\n\r\n        public Greet(string greeting)\r\n        {\r\n            _greeting = greeting;\r\n        }\r\n\r\n        public string Say() =&gt; _greeting;\r\n    }\r\n\r\n    public class Startup\r\n    {\r\n        public void ConfigureProductionServices(IServiceCollection services)\r\n        {\r\n            services.AddSingleton(new Greet(\"Hello Production\"));\r\n        }\r\n\r\n        public void ConfigureDevelopmentServices(IServiceCollection services)\r\n        {\r\n            services.AddSingleton(new Greet(\"Hello Development\"));\r\n        }\r\n\r\n        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory logger)\r\n        {\r\n            \/\/These are the three default services available at Configure\r\n\r\n            app.Run(context =&gt;\r\n            {\r\n                var greeter = context.RequestServices.GetService&lt;Greet&gt;();\r\n                if (greeter == null)\r\n                    return context.Response.WriteAsync($\"Greeter is null\");\r\n                else\r\n                    return context.Response.WriteAsync($\"{greeter.Say()}\");\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 Development<\/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 namespace WebApplication1 { public class Greet { string _greeting; public Greet(string greeting) { _greeting = greeting; } public string Say() =&gt; _greeting; } public class Startup { public void ConfigureProductionServices(IServiceCollection services) { services.AddSingleton(new Greet(&#8220;Hello Production&#8221;)); } public\u2026 <span class=\"read-more\"><a href=\"https:\/\/csharp.ihavenomoney.co.kr\/?p=619\">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-619","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\/619","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=619"}],"version-history":[{"count":1,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/619\/revisions"}],"predecessor-version":[{"id":620,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/619\/revisions\/620"}],"wp:attachment":[{"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csharp.ihavenomoney.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}