{"id":400523,"date":"2024-06-29T15:19:13","date_gmt":"2024-06-29T15:19:13","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=400523"},"modified":"-0001-11-30T00:00:00","modified_gmt":"2024-06-29T15:19:13","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=400523","title":{"rendered":"<span>Dependency Injection \u0432 .NET \u043d\u0430 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430\u0445<\/span>"},"content":{"rendered":"<div><!--[--><!--]--><\/div>\n<div id=\"post-content-body\">\n<div>\n<div class=\"article-formatted-body article-formatted-body article-formatted-body_version-2\">\n<div xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\">\n<p>\u041d\u0430\u0432\u0435\u0440\u043d\u043e\u0435, \u0432\u0441\u0435 \u0441\u0442\u0430\u043b\u043a\u0438\u0432\u0430\u043b\u0438\u0441\u044c \u0441 \u0442\u0430\u043a\u0438\u043c \u043f\u0430\u0442\u0442\u0435\u0440\u043d\u043e\u043c \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u043a\u0430\u043a Inversion of control(IoC, \u0438\u043d\u0432\u0435\u0440\u0441\u0438\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f) \u0438 \u0435\u0433\u043e \u0444\u043e\u0440\u043c\u043e\u0439 &#8212; Dependency Injection (DI, \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u0435 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439). .NET \u0438, \u0432 \u0447\u0430\u0441\u0442\u043d\u043e\u0441\u0442\u0438, .Net Core \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u044d\u0442\u043e\u0442 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u00ab\u0438\u0437 \u043a\u043e\u0440\u043e\u0431\u043a\u0438\u00bb. \u041e\u0447\u0435\u043d\u044c \u0432\u0430\u0436\u043d\u044b\u043c \u043c\u043e\u043c\u0435\u043d\u0442\u043e\u043c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u0430\u043a\u043e\u0435 \u043f\u043e\u043d\u044f\u0442\u0438\u0435, \u043a\u0430\u043a Lifetime \u0438\u043b\u0438, \u0432\u0440\u0435\u043c\u044f \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438.<\/p>\n<p><strong>\u0412 .NET \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0442\u0440\u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u0430 \u0437\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c:<\/strong><\/p>\n<ul>\n<li>\n<p> <em>AddTransient (\u0412\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c)<\/em><\/p>\n<\/li>\n<li>\n<p><em>AddScoped (\u0417\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f)<\/em><\/p>\n<\/li>\n<li>\n<p><em>AddSingleton (\u041e\u0434\u043d\u043e\u044d\u043a\u0437\u0435\u043c\u043f\u043b\u044f\u0440\u043d\u0430\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c)<\/em><\/p>\n<\/li>\n<\/ul>\n<p>\u041d\u0430\u0434\u043e \u0431\u044b \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u0442\u044c\u0441\u044f \u0432 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f\u0445, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u0438 \u0431\u0443\u043a\u0432\u044b \u0432 \u0432\u044b\u0448\u0435\u043e\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u0441\u043f\u043e\u0441\u043e\u0431\u0430\u0445 \u0440\u0430\u0437\u043d\u044b\u0435, \u0438 \u0432\u043e\u043e\u0431\u0449\u0435, \u0441\u043c\u044b\u0441\u043b \u0441\u043b\u043e\u0432 \u0442\u043e\u0436\u0435 \u043e\u0442 \u0441\u043f\u043e\u0441\u043e\u0431\u0430 \u043a \u0441\u043f\u043e\u0441\u043e\u0431\u0443 \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f. \u0425\u043e\u0440\u043e\u0448\u043e, \u043e\u0442\u043a\u0440\u044b\u0432\u0430\u0435\u043c \u043f\u043e\u0438\u0441\u043a\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0438 \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u043c \u0438\u0441\u043a\u0430\u0442\u044c, \u0432 \u0447\u0451\u043c \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f. \u0422\u0430\u043a, \u0432\u0435\u0437\u0434\u0435 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043e \u043f\u0440\u043e Asp.Net. \u041a\u0430\u043a \u0436\u0435 \u043f\u043e\u043d\u044f\u0442\u044c, \u043a\u0430\u043a \u044d\u0442\u043e\u0442 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432 \u043e\u0431\u0449\u0435\u043c, \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e \u043e\u0442 Asp.Net \u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432?<\/p>\n<p>\u041f\u0435\u0440\u0435\u0434 \u0442\u0435\u043c, \u043a\u0430\u043a \u043f\u0440\u0438\u0441\u0442\u0443\u043f\u0438\u0442\u044c \u043a \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u0438\u044e \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0439, \u0434\u0430\u0432\u0430\u0439\u0442\u0435 \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u043e\u0441\u0432\u0435\u0436\u0438\u043c \u0441\u0432\u043e\u0438 \u0437\u043d\u0430\u043d\u0438\u044f \u043e \u0441\u043e\u0441\u0442\u0430\u0432\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0433\u043e \u043d\u0430\u043c:<\/p>\n<ul>\n<li>\n<p>IServiceCollection, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u044e \u0434\u0435\u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0440\u043e\u0432 \u0441\u043b\u0443\u0436\u0431<\/p>\n<\/li>\n<li>\n<p>IServiceProvider, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u0441\u043b\u0443\u0436\u0431 .NET<\/p>\n<\/li>\n<li>\n<p>IServiceScopeFactory, \u0444\u0430\u0431\u0440\u0438\u043a\u0430 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0441\u043b\u0443\u0436\u0431 \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e<\/p>\n<\/li>\n<\/ul>\n<p>\u0412\u0441\u0435 \u043e\u0431\u044a\u044f\u0441\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u043d\u043e\u0439 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u0441\u0432\u043e\u0434\u044f\u0442\u0441\u044f \u043a \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u0438\u044e \u043f\u0440\u0438\u043c\u0435\u0440\u043e\u0432, \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u044b\u0445 \u043d\u0430 \u0437\u0430\u043f\u0440\u043e\u0441\u0430\u0445 \u043a \u0432\u0435\u0431-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044e. \u041d\u0443, \u0432 \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0435 \u043f\u043e\u043d\u044f\u0442\u043d\u043e &#8212; \u043d\u043e\u0432\u044b\u0439 \u0437\u0430\u043f\u0440\u043e\u0441 => \u043d\u043e\u0432\u044b\u0439 \u0441\u0435\u0440\u0432\u0438\u0441(\u0437\u0430 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c AddSingleton). \u0427\u0442\u043e \u0436, \u0434\u0430\u0432\u0430\u0439\u0442\u0435 \u043f\u043e\u043f\u0440\u043e\u0431\u0443\u0435\u043c \u043f\u043e\u043d\u044f\u0442\u044c \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e, \u0432 \u0447\u0451\u043c \u0436\u0435 \u0432\u0441\u0451-\u0442\u0430\u043a\u0438 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f.<\/p>\n<p>\u041f\u0440\u0438\u0432\u0435\u0434\u0443 \u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u043f\u0440\u0438\u043c\u0435\u0440 \u043d\u0430 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430\u0445. \u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043c, \u0447\u0442\u043e \u043c\u044b \u0436\u0434\u0451\u043c \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u043f\u0438\u0441\u044c\u043c\u0430. \u0412 \u043e\u0431\u044f\u0437\u0430\u043d\u043d\u043e\u0441\u0442\u0438 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430 \u0431\u0443\u0434\u0435\u0442 \u0432\u0445\u043e\u0434\u0438\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0430\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0439:<\/p>\n<ol>\n<li>\n<p><em>\u0417\u0430\u0431\u0440\u0430\u0442\u044c \u043f\u0438\u0441\u044c\u043c\u043e \u0438\u0437 \u043e\u0442\u0434\u0435\u043b\u0435\u043d\u0438\u044f.<\/em><\/p>\n<\/li>\n<li>\n<p><em>\u0414\u043e\u043d\u0435\u0441\u0442\u0438 \u043f\u0438\u0441\u044c\u043c\u043e \u0434\u043e \u0430\u0434\u0440\u0435\u0441\u0430\u0442\u0430.<\/em><\/p>\n<\/li>\n<li>\n<p><em>\u041f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043f\u043e\u0434\u043f\u0438\u0441\u044c \u0430\u0434\u0440\u0435\u0441\u0430\u0442\u0430 \u043e \u0432\u0440\u0443\u0447\u0435\u043d\u0438\u0438.<\/em><\/p>\n<\/li>\n<li>\n<p><em>\u0412\u0440\u0443\u0447\u0438\u0442\u044c \u043f\u0438\u0441\u044c\u043c\u043e \u0430\u0434\u0440\u0435\u0441\u0430\u0442\u0443.<\/em><\/p>\n<\/li>\n<\/ol>\n<p>\u042d\u0442\u0438 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043c \u0432 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0435 IPostmanService:<\/p>\n<pre><code class=\"cs\">using System;  namespace DependencyInjectionConsole.Interfaces {     public interface IPostmanService     {         void PickUpLetter(string postmanType);         void DeliverLetter(string postmanType);         void GetSignature(string postmanType);         void HandOverLetter(string postmanType);     } }<\/code><\/pre>\n<p>\u0422\u0430\u043a\u0436\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043c \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u044e\u0449\u0438\u0435 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 <strong>IPostmanService<\/strong> \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u044b <strong>ITransientPostmanService, IScopedPostmanService, ISingletonPostmanService,<\/strong> \u0434\u043b\u044f \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u0440\u0430\u0437\u043d\u044b\u043c\u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u0430\u043c\u0438 \u043e\u0434\u043d\u043e\u0439 \u0438 \u0442\u043e\u0439 \u0436\u0435 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 <strong>PostmanService:<\/strong><\/p>\n<pre><code class=\"cs\">using DependencyInjectionConsole.Interfaces; using Microsoft.Extensions.Logging; using System;  namespace DependencyInjectionConsole.Services {     public class PostmanService :          ITransientPostmanService,         IScopedPostmanService,         ISingletonPostmanService     {         private readonly string _name;         private readonly string[] _possibleNames = new string[] { \"Peter\", \"Jack\", \"Bob\", \"Alex\" };         private readonly string[] _possibleLastNames = new string[] { \"Brown\", \"Jackson\", \"Gibson\", \"Williams\" };         private readonly ILogger&lt;PostmanService> _logger;          public PostmanService(ILogger&lt;PostmanService> logger)         {             _logger = logger;              var rnd = new Random();             _name = $\"{_possibleNames[rnd.Next(0, _possibleNames.Length - 1)]} {_possibleLastNames[rnd.Next(0, _possibleLastNames.Length - 1)]}\";              _logger.LogInformation($\"Hi! My name is {_name}.\");         }          public void DeliverLetter(string postmanType)         {             _logger.LogInformation($\"Postman {_name} delivered the letter. [{postmanType}]\");         }          public void GetSignature(string postmanType)         {             _logger.LogInformation($\"Postman {_name} got a signature. [{postmanType}]\");         }          public void HandOverLetter(string postmanType)         {             _logger.LogInformation($\"Postman {_name} handed the letter. [{postmanType}]\");         }          public void PickUpLetter(string postmanType)         {             _logger.LogInformation($\"Postman {_name} took the letter. [{postmanType}]\");         }     } }<\/code><\/pre>\n<p>\u0412\u0441\u0435 \u043a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430 \u043c\u044b \u0431\u0443\u0434\u0435\u043c \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u043d\u0435\u043a\u043e\u0435\u0433\u043e \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0430 <strong>PostmanHandler<\/strong>, \u0438\u043c\u0435\u043d\u043d\u043e \u0435\u043c\u0443 \u0432 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u043e\u0440 \u0431\u0443\u0434\u0443\u0442 \u0432\u043d\u0435\u0434\u0440\u044f\u0442\u044c\u0441\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043d\u0430\u0448\u0438\u0445 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u043e\u0432:<\/p>\n<pre><code class=\"cs\">using DependencyInjectionConsole.Interfaces; using System;  namespace DependencyInjectionConsole {     public class PostmanHandler     {         private readonly ITransientPostmanService _transientPostman;         private readonly IScopedPostmanService _scopedPostman;         private readonly ISingletonPostmanService _singletonPostman;          public PostmanHandler(ITransientPostmanService transientPostman, IScopedPostmanService scopedPostman, ISingletonPostmanService singletonPostman)         {             _transientPostman = transientPostman;             _scopedPostman = scopedPostman;             _singletonPostman = singletonPostman;         }          public void PickUpLetter()         {             _transientPostman.PickUpLetter(nameof(_transientPostman));             _scopedPostman.PickUpLetter(nameof(_scopedPostman));             _singletonPostman.PickUpLetter(nameof(_singletonPostman));         }          public void DeliverLetter()         {             _transientPostman.DeliverLetter(nameof(_transientPostman));             _scopedPostman.DeliverLetter(nameof(_scopedPostman));             _singletonPostman.DeliverLetter(nameof(_singletonPostman));         }          public void GetSignature()         {             _transientPostman.GetSignature(nameof(_transientPostman));             _scopedPostman.GetSignature(nameof(_scopedPostman));             _singletonPostman.GetSignature(nameof(_singletonPostman));         }          public void HandOverLetter()         {             _transientPostman.HandOverLetter(nameof(_transientPostman));             _scopedPostman.HandOverLetter(nameof(_scopedPostman));             _singletonPostman.HandOverLetter(nameof(_singletonPostman));         }     } }<\/code><\/pre>\n<p>\u0418 \u043d\u0430\u043a\u043e\u043d\u0435\u0446, \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043c \u043a\u043e\u0434 \u0432 \u043a\u043b\u0430\u0441\u0441\u0435 <strong>Program:<\/strong><\/p>\n<pre><code class=\"cs\">using DependencyInjectionConsole.Interfaces; using DependencyInjectionConsole.Services; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Logging; using System;  namespace DependencyInjectionConsole {     class Program     {         private static IServiceCollection ConfigureServices()         {             var services = new ServiceCollection();             services.AddTransient&lt;ITransientPostmanService, PostmanService>();             services.AddScoped&lt;IScopedPostmanService, PostmanService>();             services.AddSingleton&lt;ISingletonPostmanService, PostmanService>();              services.AddTransient&lt;PostmanHandler>();              services.AddLogging(loggerBuilder =>             {                 loggerBuilder.ClearProviders();                 loggerBuilder.AddConsole();             });              return services;         }          static void Main(string[] args)         {             PostmanHandler postman;              var services = ConfigureServices();             var serviceProvider = services.BuildServiceProvider();             var scopeFactory = serviceProvider.GetService&lt;IServiceScopeFactory>();              postman = serviceProvider.GetService&lt;PostmanHandler>();              postman.PickUpLetter();             postman = serviceProvider.GetService&lt;PostmanHandler>();             postman.DeliverLetter();             postman = serviceProvider.GetService&lt;PostmanHandler>();             postman.GetSignature();             postman = serviceProvider.GetService&lt;PostmanHandler>();             postman.HandOverLetter();              Console.WriteLine(\"-----------------Scope changed!---------------------\");              using (var scope = scopeFactory.CreateScope())             {                 postman = scope.ServiceProvider.GetService&lt;PostmanHandler>();                  postman.PickUpLetter();                 postman = serviceProvider.GetService&lt;PostmanHandler>();                 postman.DeliverLetter();                 postman = serviceProvider.GetService&lt;PostmanHandler>();                 postman.GetSignature();                 postman = serviceProvider.GetService&lt;PostmanHandler>();                 postman.HandOverLetter();             }              Console.ReadKey();         }     } }<\/code><\/pre>\n<p>\u041f\u043e\u0441\u043b\u0435 \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u043c\u044b \u0443\u0432\u0438\u0434\u0438\u043c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u0432\u043e\u0434 \u0432 \u043a\u043e\u043d\u0441\u043e\u043b\u0438:<\/p>\n<details class=\"spoiler\">\n<summary>\u041a\u043e\u043d\u0441\u043e\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u0432\u043e\u0434<\/summary>\n<div class=\"spoiler__content\">\n<p><em>Hi! My name is Bob Gibson. <br \/>Hi! My name is Jack Jackson. <br \/>Hi! My name is Peter Jackson. <br \/>Postman Bob Gibson took the letter. [_transientPostman] <br \/>Postman Jack Jackson took the letter. [_scopedPostman] <br \/>Postman Peter Jackson took the letter. [_singletonPostman] <br \/>Hi! My name is Bob Gibson. <br \/>Postman Bob Gibson delivered the letter. [_transientPostman] <br \/>Postman Jack Jackson delivered the letter. [_scopedPostman] <br \/>Postman Peter Jackson delivered the letter. [_singletonPostman] <br \/>Hi! My name is Jack Gibson. <br \/>Postman Jack Gibson got a signature. [_transientPostman] <br \/>Postman Jack Jackson got a signature. [_scopedPostman] <br \/>Postman Peter Jackson got a signature. [_singletonPostman] <br \/>Hi! My name is Bob Gibson. <br \/>Postman Bob Gibson handed the letter. [_transientPostman] <br \/>Postman Jack Jackson handed the letter. [_scopedPostman] <br \/>Postman Peter Jackson handed the letter. [_singletonPostman] <br \/>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;Scope changed!&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; <br \/>Hi! My name is Bob Gibson. <br \/><\/em><strong><em>Hi! My name is Bob Brown.<\/em><\/strong><em> <\/em><strong><em>(\u041d\u0430\u0441 \u0431\u0443\u0434\u0435\u0442 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043e\u0432\u0430\u0442\u044c \u044d\u0442\u043e\u0442 \u043c\u043e\u043c\u0435\u043d\u0442)<\/em><\/strong><em><br \/>Postman Bob Gibson took the letter. [_transientPostman] <br \/>Postman Bob Brown took the letter. [_scopedPostman] <br \/>Postman Peter Jackson took the letter. [_singletonPostman] <br \/>Hi! My name is Peter Jackson. <br \/>Postman Peter Jackson delivered the letter. [_transientPostman] <br \/>Postman Jack Jackson delivered the letter. [_scopedPostman] <br \/>Postman Peter Jackson delivered the letter. [_singletonPostman] <br \/>Hi! My name is Bob Jackson. <br \/>Postman Bob Jackson got a signature. [_transientPostman] <br \/>Postman Jack Jackson got a signature. [_scopedPostman] <br \/>Postman Peter Jackson got a signature. [_singletonPostman] <br \/>Hi! My name is Peter Brown. <br \/>Postman Peter Brown handed the letter. [_transientPostman] <br \/>Postman Jack Jackson handed the letter. [_scopedPostman] <br \/>Postman Peter Jackson handed the letter. [_singletonPostman]<\/em><\/p>\n<\/div>\n<\/details>\n<p><strong>\u041f\u043e\u043a\u0430 \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u043e\u0442\u0441\u0442\u0443\u043f\u0438\u043c \u0432 \u0441\u0442\u043e\u0440\u043e\u043d\u0443 \u0430\u0431\u0441\u0442\u0440\u0430\u043a\u0442\u043d\u043e\u0433\u043e \u043e\u0431\u044a\u044f\u0441\u043d\u0435\u043d\u0438\u044f \u043d\u0430 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430\u0445.<\/strong><\/p>\n<p>\u0421\u043d\u0430\u0447\u0430\u043b\u0430 \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u043c, \u043a\u0430\u043a \u0432\u0441\u0451 \u044d\u0442\u043e \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u0433\u043b\u044f\u0434\u0435\u0442\u044c, \u0435\u0441\u043b\u0438 \u043e\u0442\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0447\u0442\u044b \u0437\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043b\u043e \u043d\u0430\u043c \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430, \u0442.\u0435. \u0432\u043e\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0432\u0448\u0438\u0441\u044c \u043c\u0435\u0442\u043e\u0434\u043e\u043c <strong>AddTransient<\/strong>:<\/p>\n<p>\u0415\u0441\u043b\u0438 \u043f\u0435\u0440\u0435\u0434 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u043c\u044b \u0431\u0443\u0434\u0435\u043c \u043f\u043e\u043b\u0443\u0447\u0430\u0442\u044c \u043d\u043e\u0432\u043e\u0433\u043e \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0430, \u0442\u043e \u0432\u043c\u0435\u0441\u0442\u0435 \u0441 \u043d\u0438\u043c \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d \u0442\u043e\u0436\u0435 \u0431\u0443\u0434\u0435\u0442 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c\u0441\u044f \u043d\u043e\u0432\u044b\u0439. \u0418 \u0442\u0430\u043a, \u043a\u0430\u0436\u0434\u043e\u0435 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u0440\u0430\u0437\u043d\u044b\u0439 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d. \u041d\u043e, \u0435\u0441\u043b\u0438 \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0430 \u043c\u044b \u0431\u0443\u0434\u0435\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043e\u0434\u043d\u043e\u0433\u043e \u2013 \u0442\u043e \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d \u0431\u0443\u0434\u0435\u0442 \u043e\u0434\u0438\u043d.<\/p>\n<p>\u041f\u0435\u0440\u0435\u0439\u0434\u0451\u043c \u043a \u0431\u043e\u043b\u0435\u0435 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u043e\u043c\u0443 \u0441\u043f\u043e\u0441\u043e\u0431\u0443 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u2013 \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f, \u0442.\u0435. <strong>AddScoped<\/strong>:<\/p>\n<p>\u041d\u0430\u043c \u0430\u0431\u0441\u043e\u043b\u044e\u0442\u043d\u043e \u043d\u0435\u0432\u0430\u0436\u043d\u043e, \u043a\u0430\u043a\u043e\u0439 \u0431\u0443\u0434\u0435\u0442 \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440 \u043f\u0440\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u2013 \u043a\u0430\u0436\u0434\u044b\u0439 \u0440\u0430\u0437 \u043d\u043e\u0432\u044b\u0439, \u0438\u043b\u0438 \u0441\u0442\u0430\u0440\u044b\u0439. \u041b\u044e\u0431\u043e\u0439 \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440 \u0432\u0441\u0435\u0433\u0434\u0430 \u0431\u0443\u0434\u0435\u0442 \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u043e\u0434\u043d\u043e\u0433\u043e \u0438 \u0442\u043e\u0433\u043e \u0436\u0435 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430. \u0422\u0430\u043a \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442\u044c \u0434\u043e \u0442\u0435\u0445 \u043f\u043e\u0440, \u043f\u043e\u043a\u0430 \u043c\u044b \u043d\u0430\u0445\u043e\u0434\u0438\u043c\u0441\u044f \u0432 \u043e\u0434\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 (scope). \u041a\u0430\u043a \u0442\u043e\u043b\u044c\u043a\u043e \u043c\u044b \u0441\u043c\u0435\u043d\u0438\u043c \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u2013 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d \u0442\u0430\u043a\u0436\u0435 \u0438\u0437\u043c\u0435\u043d\u0438\u0442\u0441\u044f. \u042d\u0442\u0438\u043c \u0438 \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u044e\u0442\u0441\u044f \u0432\u0441\u0435 \u043f\u0440\u0438\u043c\u0435\u0440\u044b, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 Asp.Net \u2013 \u043f\u0440\u0438 \u043a\u0430\u0436\u0434\u043e\u043c \u0437\u0430\u043f\u0440\u043e\u0441\u0435 \u0441\u043e\u0437\u0434\u0430\u0451\u0442\u0441\u044f \u043d\u043e\u0432\u0430\u044f \u043e\u0431\u043b\u0430\u0441\u0442\u044c, \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442\u0441\u044f \u0440\u0430\u0431\u043e\u0442\u0430.<\/p>\n<p>\u0418 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0439 \u0438\u0437 \u0441\u043f\u043e\u0441\u043e\u0431\u043e\u0432 \u2013 \u043e\u0434\u043d\u043e\u044d\u043a\u0437\u0435\u043c\u043f\u043b\u044f\u0440\u043d\u0430\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c, \u0442.\u0435. <strong>AddSingleton<\/strong>:<\/p>\n<p>\u041d\u0430\u0448 \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440, \u043a\u0430\u043a \u0438 \u043b\u044e\u0431\u043e\u0439 \u0434\u0440\u0443\u0433\u043e\u0439 \u0437\u043d\u0430\u0435\u0442 \u2013 \u043d\u0435\u0442 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430 \u043b\u0443\u0447\u0448\u0435, \u0447\u0435\u043c \u0437\u0430\u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u043e\u0432\u0430\u0432\u0448\u0438\u0439 \u0441\u0435\u0431\u044f \u0432\u0435\u0442\u0435\u0440\u0430\u043d \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0432\u043e\u0439\u043d. \u041f\u0440\u0438 \u0442\u0430\u043a\u043e\u043c \u0441\u043f\u043e\u0441\u043e\u0431\u0435 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440 \u0432\u0441\u0435\u0433\u0434\u0430 \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u043b\u0443\u0447\u0430\u0442\u044c \u043e\u0434\u043d\u043e\u0433\u043e \u0438 \u0442\u043e\u0433\u043e \u0436\u0435 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430, \u043d\u0435\u0432\u0430\u0436\u043d\u043e \u043d\u0430\u0445\u043e\u0434\u0438\u043c\u0441\u044f \u043b\u0438 \u043c\u044b \u0432 \u043d\u043e\u0432\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0438\u043b\u0438 \u0441\u0442\u0430\u0440\u043e\u0439 \u2013 \u0432\u0435\u0441\u044c \u0441\u0440\u043e\u043a \u0436\u0438\u0437\u043d\u0438 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u043d\u0430\u0448 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d \u0431\u0443\u0434\u0435\u0442 \u0441 \u043d\u0430\u043c\u0438.<\/p>\n<p>\u0418\u0437 \u043a\u043e\u043d\u0441\u043e\u043b\u044c\u043d\u043e\u0433\u043e \u0432\u044b\u0432\u043e\u0434\u0430 \u043c\u044b \u0432\u0438\u0434\u0438\u043c, \u0447\u0442\u043e \u043d\u0430\u0448 \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d \u0432\u0441\u0435\u0433\u0434\u0430 \u0440\u0430\u0437\u043d\u044b\u0439. \u041d\u0430\u0448 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e \u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u043b\u0438\u0448\u044c \u0435\u0434\u0438\u043d\u043e\u0436\u0434\u044b &#8212; \u043f\u043e\u0441\u043b\u0435 \u0441\u043c\u0435\u043d\u044b \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 <strong>IServiceScopeFactory.CreateScope(). <\/strong>\u041d\u0430\u0448 \u043e\u0434\u043d\u043e\u044d\u043a\u0437\u0435\u043c\u043f\u043b\u044f\u0440\u043d\u044b\u0439 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d \u043e\u0441\u0442\u0430\u0451\u0442\u0441\u044f \u0432\u0441\u0435\u0433\u0434\u0430 \u043e\u0434\u043d\u0438\u043c, \u0434\u0430\u0436\u0435 \u043a\u043e\u0433\u0434\u0430 \u043c\u044b \u043c\u0435\u043d\u044f\u0435\u043c \u043e\u0431\u043b\u0430\u0441\u0442\u044c.<\/p>\n<p><strong>\u0415\u0441\u0442\u044c \u043e\u0434\u043d\u0430 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043e \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a \u043d\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 .NET \u0434\u043e\u043b\u0436\u0435\u043d \u043f\u043e\u043c\u043d\u0438\u0442\u044c \u0432\u0441\u0435\u0433\u0434\u0430 \u043f\u0440\u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0438 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430.<\/strong><\/p>\n<p>\u0415\u0441\u043b\u0438 \u043c\u044b \u0432\u043d\u0435\u0434\u0440\u044f\u0435\u043c \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u0443\u044e \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e, \u0442\u043e \u043e\u043d\u0430 \u043f\u0440\u0435\u0432\u0440\u0430\u0449\u0430\u0435\u0442\u0441\u044f \u0432 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e.<br \/>\u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440 \u0435\u0441\u043b\u0438 \u043c\u044b \u0437\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u0443\u0435\u043c \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c PostmanHandler \u043a\u0430\u043a Scoped:<\/p>\n<pre><code class=\"cs\">            var services = new ServiceCollection();             services.AddTransient&lt;ITransientPostmanService, PostmanService>();             services.AddScoped&lt;IScopedPostmanService, PostmanService>();             services.AddSingleton&lt;ISingletonPostmanService, PostmanService>(); \/\/\u0422\u0435\u043f\u0435\u0440\u044c \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u043d\u0430\u0448\u0435\u0433\u043e \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0430 \u0438\u043c\u0435\u0435\u0442 \u0442\u0438\u043f Scoped             services.AddScoped&lt;PostmanHandler>();              services.AddLogging(loggerBuilder =>             {                 loggerBuilder.ClearProviders();                 loggerBuilder.AddConsole();             });<\/code><\/pre>\n<p>\u041d\u0430\u0448 \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d \u0441\u0442\u0430\u043d\u0435\u0442 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u043e\u043c \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u044b\u043c (\u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e) \u0438 \u043c\u044b \u0443\u0432\u0438\u0434\u0438\u043c \u043e\u0442 \u043d\u0435\u0433\u043e <strong><em>Hi! <\/em><\/strong>\u0442\u043e\u043b\u044c\u043a\u043e \u0434\u0432\u0430 \u0440\u0430\u0437\u0430, \u043f\u0435\u0440\u0432\u044b\u0439 \u043f\u0440\u0438 \u0441\u0442\u0430\u0440\u0442\u0435 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f, \u0432\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u0438 \u0441\u043c\u0435\u043d\u0435 \u043e\u0431\u043b\u0430\u0441\u0442\u0438.<\/p>\n<p>\u0415\u0441\u043b\u0438 \u0436\u0435 \u043c\u044b \u0431\u0443\u0434\u0435\u043c \u0432\u043d\u0435\u0434\u0440\u044f\u0442\u044c \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u0443\u044e \u0438\u043b\u0438 \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u0434\u043d\u043e\u044d\u043a\u0437\u0435\u043c\u043f\u043b\u044f\u0440\u043d\u0443\u044e, \u0442\u043e \u0432\u0441\u0435 \u043e\u043d\u0438 \u043f\u0440\u0435\u0432\u0440\u0430\u0442\u044f\u0442\u0441\u044f \u0432 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0434\u043d\u043e\u044d\u043a\u0437\u0435\u043c\u043f\u043b\u044f\u0440\u043d\u044b\u0435.<br \/>\u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u0437\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u0443\u0435\u043c \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u043d\u0430\u0448\u0435\u0433\u043e \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0430 PostmanHandler \u043a\u0430\u043a Singleton:<\/p>\n<pre><code class=\"cs\">            var services = new ServiceCollection();             services.AddTransient&lt;ITransientPostmanService, PostmanService>();             services.AddScoped&lt;IScopedPostmanService, PostmanService>();             services.AddSingleton&lt;ISingletonPostmanService, PostmanService>(); \/\/\u0422\u0435\u043f\u0435\u0440\u044c \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u043d\u0430\u0448\u0435\u0433\u043e \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0430 \u0438\u043c\u0435\u0435\u0442 \u0442\u0438\u043f Singleton             services.AddSingleton&lt;PostmanHandler>();              services.AddLogging(loggerBuilder =>             {                 loggerBuilder.ClearProviders();                 loggerBuilder.AddConsole();             });              return services;<\/code><\/pre>\n<p>\u041d\u0430\u0448\u0438 \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0439 \u0438 \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u044b \u0441\u0442\u0430\u043d\u0443\u0442 \u0431\u0435\u0441\u043f\u043e\u0432\u043e\u0440\u043e\u0442\u043d\u043e \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u044b\u043c\u0438 (\u043e\u0434\u043d\u043e\u044d\u043a\u0437\u0435\u043c\u043f\u043b\u044f\u0440\u043d\u044b\u043c\u0438) \u0438 \u043c\u044b \u0443\u0432\u0438\u0434\u0438\u043c \u043e\u0442 \u043d\u0438\u0445 <strong><em>Hi! <\/em><\/strong>\u0442\u043e\u043b\u044c\u043a\u043e \u0435\u0434\u0438\u043d\u043e\u0436\u0434\u044b &#8212; \u043f\u0440\u0438 \u0441\u0442\u0430\u0440\u0442\u0435 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!----><!----><\/div>\n<p><!----><!----><br \/> \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438 <a href=\"https:\/\/habr.com\/ru\/articles\/595613\/\"> https:\/\/habr.com\/ru\/articles\/595613\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div><!--[--><!--]--><\/div>\n<div id=\"post-content-body\">\n<div>\n<div class=\"article-formatted-body article-formatted-body article-formatted-body_version-2\">\n<div xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\">\n<p>\u041d\u0430\u0432\u0435\u0440\u043d\u043e\u0435, \u0432\u0441\u0435 \u0441\u0442\u0430\u043b\u043a\u0438\u0432\u0430\u043b\u0438\u0441\u044c \u0441 \u0442\u0430\u043a\u0438\u043c \u043f\u0430\u0442\u0442\u0435\u0440\u043d\u043e\u043c \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u043a\u0430\u043a Inversion of control(IoC, \u0438\u043d\u0432\u0435\u0440\u0441\u0438\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f) \u0438 \u0435\u0433\u043e \u0444\u043e\u0440\u043c\u043e\u0439 &#8212; Dependency Injection (DI, \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u0435 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439). .NET \u0438, \u0432 \u0447\u0430\u0441\u0442\u043d\u043e\u0441\u0442\u0438, .Net Core \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u044d\u0442\u043e\u0442 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u00ab\u0438\u0437 \u043a\u043e\u0440\u043e\u0431\u043a\u0438\u00bb. \u041e\u0447\u0435\u043d\u044c \u0432\u0430\u0436\u043d\u044b\u043c \u043c\u043e\u043c\u0435\u043d\u0442\u043e\u043c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u0430\u043a\u043e\u0435 \u043f\u043e\u043d\u044f\u0442\u0438\u0435, \u043a\u0430\u043a Lifetime \u0438\u043b\u0438, \u0432\u0440\u0435\u043c\u044f \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438.<\/p>\n<p><strong>\u0412 .NET \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0442\u0440\u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u0430 \u0437\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c:<\/strong><\/p>\n<ul>\n<li>\n<p> <em>AddTransient (\u0412\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c)<\/em><\/p>\n<\/li>\n<li>\n<p><em>AddScoped (\u0417\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f)<\/em><\/p>\n<\/li>\n<li>\n<p><em>AddSingleton (\u041e\u0434\u043d\u043e\u044d\u043a\u0437\u0435\u043c\u043f\u043b\u044f\u0440\u043d\u0430\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c)<\/em><\/p>\n<\/li>\n<\/ul>\n<p>\u041d\u0430\u0434\u043e \u0431\u044b \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u0442\u044c\u0441\u044f \u0432 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f\u0445, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u0438 \u0431\u0443\u043a\u0432\u044b \u0432 \u0432\u044b\u0448\u0435\u043e\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u0441\u043f\u043e\u0441\u043e\u0431\u0430\u0445 \u0440\u0430\u0437\u043d\u044b\u0435, \u0438 \u0432\u043e\u043e\u0431\u0449\u0435, \u0441\u043c\u044b\u0441\u043b \u0441\u043b\u043e\u0432 \u0442\u043e\u0436\u0435 \u043e\u0442 \u0441\u043f\u043e\u0441\u043e\u0431\u0430 \u043a \u0441\u043f\u043e\u0441\u043e\u0431\u0443 \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f. \u0425\u043e\u0440\u043e\u0448\u043e, \u043e\u0442\u043a\u0440\u044b\u0432\u0430\u0435\u043c \u043f\u043e\u0438\u0441\u043a\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u0438 \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u043c \u0438\u0441\u043a\u0430\u0442\u044c, \u0432 \u0447\u0451\u043c \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f. \u0422\u0430\u043a, \u0432\u0435\u0437\u0434\u0435 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043e \u043f\u0440\u043e Asp.Net. \u041a\u0430\u043a \u0436\u0435 \u043f\u043e\u043d\u044f\u0442\u044c, \u043a\u0430\u043a \u044d\u0442\u043e\u0442 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432 \u043e\u0431\u0449\u0435\u043c, \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e \u043e\u0442 Asp.Net \u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432?<\/p>\n<p>\u041f\u0435\u0440\u0435\u0434 \u0442\u0435\u043c, \u043a\u0430\u043a \u043f\u0440\u0438\u0441\u0442\u0443\u043f\u0438\u0442\u044c \u043a \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u0438\u044e \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0439, \u0434\u0430\u0432\u0430\u0439\u0442\u0435 \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u043e\u0441\u0432\u0435\u0436\u0438\u043c \u0441\u0432\u043e\u0438 \u0437\u043d\u0430\u043d\u0438\u044f \u043e \u0441\u043e\u0441\u0442\u0430\u0432\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0433\u043e \u043d\u0430\u043c:<\/p>\n<ul>\n<li>\n<p>IServiceCollection, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u044e \u0434\u0435\u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0440\u043e\u0432 \u0441\u043b\u0443\u0436\u0431<\/p>\n<\/li>\n<li>\n<p>IServiceProvider, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440 \u0441\u043b\u0443\u0436\u0431 .NET<\/p>\n<\/li>\n<li>\n<p>IServiceScopeFactory, \u0444\u0430\u0431\u0440\u0438\u043a\u0430 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0441\u043b\u0443\u0436\u0431 \u0441 \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u044c\u044e<\/p>\n<\/li>\n<\/ul>\n<p>\u0412\u0441\u0435 \u043e\u0431\u044a\u044f\u0441\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044f \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u043d\u043e\u0439 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u0441\u0432\u043e\u0434\u044f\u0442\u0441\u044f \u043a \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u0438\u044e \u043f\u0440\u0438\u043c\u0435\u0440\u043e\u0432, \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u044b\u0445 \u043d\u0430 \u0437\u0430\u043f\u0440\u043e\u0441\u0430\u0445 \u043a \u0432\u0435\u0431-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044e. \u041d\u0443, \u0432 \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0435 \u043f\u043e\u043d\u044f\u0442\u043d\u043e &#8212; \u043d\u043e\u0432\u044b\u0439 \u0437\u0430\u043f\u0440\u043e\u0441 => \u043d\u043e\u0432\u044b\u0439 \u0441\u0435\u0440\u0432\u0438\u0441(\u0437\u0430 \u0438\u0441\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c AddSingleton). \u0427\u0442\u043e \u0436, \u0434\u0430\u0432\u0430\u0439\u0442\u0435 \u043f\u043e\u043f\u0440\u043e\u0431\u0443\u0435\u043c \u043f\u043e\u043d\u044f\u0442\u044c \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e, \u0432 \u0447\u0451\u043c \u0436\u0435 \u0432\u0441\u0451-\u0442\u0430\u043a\u0438 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u044f.<\/p>\n<p>\u041f\u0440\u0438\u0432\u0435\u0434\u0443 \u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u043f\u0440\u0438\u043c\u0435\u0440 \u043d\u0430 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430\u0445. \u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043c, \u0447\u0442\u043e \u043c\u044b \u0436\u0434\u0451\u043c \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u043f\u0438\u0441\u044c\u043c\u0430. \u0412 \u043e\u0431\u044f\u0437\u0430\u043d\u043d\u043e\u0441\u0442\u0438 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430 \u0431\u0443\u0434\u0435\u0442 \u0432\u0445\u043e\u0434\u0438\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0430\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0439:<\/p>\n<ol>\n<li>\n<p><em>\u0417\u0430\u0431\u0440\u0430\u0442\u044c \u043f\u0438\u0441\u044c\u043c\u043e \u0438\u0437 \u043e\u0442\u0434\u0435\u043b\u0435\u043d\u0438\u044f.<\/em><\/p>\n<\/li>\n<li>\n<p><em>\u0414\u043e\u043d\u0435\u0441\u0442\u0438 \u043f\u0438\u0441\u044c\u043c\u043e \u0434\u043e \u0430\u0434\u0440\u0435\u0441\u0430\u0442\u0430.<\/em><\/p>\n<\/li>\n<li>\n<p><em>\u041f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043f\u043e\u0434\u043f\u0438\u0441\u044c \u0430\u0434\u0440\u0435\u0441\u0430\u0442\u0430 \u043e \u0432\u0440\u0443\u0447\u0435\u043d\u0438\u0438.<\/em><\/p>\n<\/li>\n<li>\n<p><em>\u0412\u0440\u0443\u0447\u0438\u0442\u044c \u043f\u0438\u0441\u044c\u043c\u043e \u0430\u0434\u0440\u0435\u0441\u0430\u0442\u0443.<\/em><\/p>\n<\/li>\n<\/ol>\n<p>\u042d\u0442\u0438 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043c \u0432 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0435 IPostmanService:<\/p>\n<pre><code class=\"cs\">using System;  namespace DependencyInjectionConsole.Interfaces {     public interface IPostmanService     {         void PickUpLetter(string postmanType);         void DeliverLetter(string postmanType);         void GetSignature(string postmanType);         void HandOverLetter(string postmanType);     } }<\/code><\/pre>\n<p>\u0422\u0430\u043a\u0436\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043c \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u044e\u0449\u0438\u0435 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 <strong>IPostmanService<\/strong> \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u044b <strong>ITransientPostmanService, IScopedPostmanService, ISingletonPostmanService,<\/strong> \u0434\u043b\u044f \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u0440\u0430\u0437\u043d\u044b\u043c\u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u0430\u043c\u0438 \u043e\u0434\u043d\u043e\u0439 \u0438 \u0442\u043e\u0439 \u0436\u0435 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 <strong>PostmanService:<\/strong><\/p>\n<pre><code class=\"cs\">using DependencyInjectionConsole.Interfaces; using Microsoft.Extensions.Logging; using System;  namespace DependencyInjectionConsole.Services {     public class PostmanService :          ITransientPostmanService,         IScopedPostmanService,         ISingletonPostmanService     {         private readonly string _name;         private readonly string[] _possibleNames = new string[] { \"Peter\", \"Jack\", \"Bob\", \"Alex\" };         private readonly string[] _possibleLastNames = new string[] { \"Brown\", \"Jackson\", \"Gibson\", \"Williams\" };         private readonly ILogger&lt;PostmanService> _logger;          public PostmanService(ILogger&lt;PostmanService> logger)         {             _logger = logger;              var rnd = new Random();             _name = $\"{_possibleNames[rnd.Next(0, _possibleNames.Length - 1)]} {_possibleLastNames[rnd.Next(0, _possibleLastNames.Length - 1)]}\";              _logger.LogInformation($\"Hi! My name is {_name}.\");         }          public void DeliverLetter(string postmanType)         {             _logger.LogInformation($\"Postman {_name} delivered the letter. [{postmanType}]\");         }          public void GetSignature(string postmanType)         {             _logger.LogInformation($\"Postman {_name} got a signature. [{postmanType}]\");         }          public void HandOverLetter(string postmanType)         {             _logger.LogInformation($\"Postman {_name} handed the letter. [{postmanType}]\");         }          public void PickUpLetter(string postmanType)         {             _logger.LogInformation($\"Postman {_name} took the letter. [{postmanType}]\");         }     } }<\/code><\/pre>\n<p>\u0412\u0441\u0435 \u043a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u0430 \u043c\u044b \u0431\u0443\u0434\u0435\u043c \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c \u0447\u0435\u0440\u0435\u0437 \u043d\u0435\u043a\u043e\u0435\u0433\u043e \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0430 <strong>PostmanHandler<\/strong>, \u0438\u043c\u0435\u043d\u043d\u043e \u0435\u043c\u0443 \u0432 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u043e\u0440 \u0431\u0443\u0434\u0443\u0442 \u0432\u043d\u0435\u0434\u0440\u044f\u0442\u044c\u0441\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043d\u0430\u0448\u0438\u0445 \u043f\u043e\u0447\u0442\u0430\u043b\u044c\u043e\u043d\u043e\u0432:<\/p>\n<pre><code class=\"cs\">using DependencyInjectionConsole.Interfaces; using System;  namespace DependencyInjectionConsole {     public class PostmanHandler     {         private readonly ITransientPostmanService _transientPostman;         private readonly IScopedPostmanService _scopedPostman;         private readonly ISingletonPostmanService _singletonPostman;          public PostmanHandler(ITransientPostmanService transientPostman, IScopedPostmanService scopedPostman, ISingletonPostmanService singletonPostman)         {             _transientPostman = transientPostman;             _scopedPostman = scopedPostman;             _singletonPostman = singletonPostman;         }          public void PickUpLetter()         {             _transientPostman.PickUpLetter(nameof(_transientPostman));             _scopedPostman.PickUpLetter(nameof(_scopedPostman));             _singletonPostman.PickUpLetter(nameof(_singletonPostman));         }          public void DeliverLetter()         {             _transientPostman.DeliverLetter(nameof(_transientPostman));             _scopedPostman.DeliverLetter(nameof(_scopedPostman));             _singletonPostman.DeliverLetter(nameof(_singletonPostman));         }          public void GetSignature()         {             _transientPostman.GetSignature(nameof(_transientPostman));             _scopedPostman.GetSignature(nameof(_scopedPostman));             _singletonPostman.GetSignature(nameof(_singletonPostman));         }          public void HandOverLetter()         {             _transientPostman.HandOverLetter(nameof(_transientPostman));             _scopedPostman.HandOverLetter(nameof(_scopedPostman));             _singletonPostman.HandOverLetter(nameof(_singletonPostman));         }     } }<\/code><\/pre>\n<p>\u0418 \u043d\u0430\u043a\u043e\u043d\u0435\u0446, \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043c \u043a\u043e\u0434 \u0432 \u043a\u043b\u0430\u0441\u0441\u0435 <strong>Program:<\/strong><\/p>\n<pre><code class=\"cs\">using DependencyInjectionConsole.Interfaces; using DependencyInjectionConsole.Services; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Logging; using System;  namespace DependencyInjectionConsole {     class Program     {         private static IServiceCollection ConfigureServices()         {             var services = new ServiceCollection();             services.AddTransient&lt;ITransientPostmanService, PostmanService>();             services.AddScoped&lt;IScopedPostmanService, PostmanService>();             services.AddSingleton&lt;ISingletonPostmanService, PostmanService>();              services.AddTransient&lt;PostmanHandler>();              services.AddLogging(loggerBuilder =>             {                 loggerBuilder.ClearProviders();                 loggerBuilder.AddConsole();             });              return services;         }          static void Main(string[] args)         {             PostmanHandler postman;              var services = ConfigureServices();             var serviceProvider = services.BuildServiceProvider();             var scopeFactory = serviceProvider.GetService&lt;IServiceScopeFactory>();              postman = serviceProvider.GetService&lt;PostmanHandler>();              postman.PickUpLetter();             postman = serviceProvider.GetService&lt;PostmanHandler>();             postman.DeliverLetter();             postman = serviceProvider.GetService&lt;PostmanHandler>();             postman.GetSignature();             postman = serviceProvider.GetService&lt;PostmanHandler>();             postman.HandOverLetter();              Console.WriteLine(\"-----------------Scope changed!---------------------\");              using (var scope = scopeFactory.CreateScope())             {                 postman = scope.ServiceProvider.GetService&lt;PostmanHandler>();                  postman.PickUpLetter();                 postman = serviceProvider.GetService&lt;PostmanHandler>();                 postman.DeliverLetter();                 postman = serviceProvider.GetService&lt;PostmanHandler>();                 postman.GetSignature();                 postman = serviceProvider.GetService&lt;PostmanHandler>();                 postman.HandOverLetter();             }              Console.ReadKey();         }     } }<\/code><\/pre>\n<p>\u041f\u043e\u0441\u043b\u0435 \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u043c\u044b \u0443\u0432\u0438\u0434\u0438\u043c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u0432\u043e\u0434 \u0432 \u043a\u043e\u043d\u0441\u043e\u043b\u0438:<\/p>\n<details class=\"spoiler\">\n<summary>\u041a\u043e\u043d\u0441\u043e\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u0432\u043e\u0434<\/summary>\n<div class=\"spoiler__content\">\n<p><em>Hi! My name is Bob Gibson. <br \/>Hi! My name is Jack Jackson. <br \/>Hi! My name is Peter Jackson. <br \/>Postman Bob Gibson took the letter. [_transientPostman] <br \/>Postman Jack Jackson took the letter. [_scopedPostman] <br \/>Postman Peter Jackson took the letter. [_singletonPostman] <br \/>Hi! My name is Bob Gibson. <br \/>Postman Bob Gibson delivered the letter. [_transientPostman] <br \/>Postman Jack Jackson delivered the letter. [_scopedPostman] <br \/>Postman Peter Jackson delivered the letter. [_singletonPostman] <br \/>Hi! My name is Jack Gibson. <br \/>Postman Jack Gibson got a signature. [_transientPostman] <br \/>Postman Jack Jackson got a signature. [_scopedPostman] <br \/>Postman Peter Jackson got a signature. [_singletonPostman] <br \/>Hi! My name is Bob Gibson. <br \/>Postman Bob Gibson handed the letter. [_transientPostman] <br \/>Postman Jack Jackson handed the letter. [_scopedPostman] <br \/>Postman Peter Jackson handed the letter. [_singletonPostman] <br \/>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;Scope changed!&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212; <br \/>Hi! My name is Bob Gibson. <br \/><\/em><strong><em>Hi! My name is Bob Brown.<\/em><\/strong><em> <\/em><strong><em>(\u041d\u0430\u0441 \u0431\u0443\u0434\u0435\u0442 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043e\u0432\u0430\u0442\u044c \u044d\u0442\u043e\u0442 \u043c\u043e\u043c\u0435\u043d\u0442)<\/em><\/strong><em><br \/>Postman Bob Gibson took the letter. [_transientPostman] <br \/>Postman Bob Brown took the letter. [_scopedPostman] <br \/>Postman Peter Jackson took the letter. [_singletonPostman] <br \/>Hi! My name is Peter Jackson. <br \/>Postman Peter Jackson delivered the letter. [_transientPostman] <br \/>Postman Jack Jackson delivered the letter. [_scopedPostman] <br \/>Postman Peter Jackson delivered the letter. [_singletonPostman] <br \/>Hi! My name is Bob Jackson. <br \/>Postman Bob Jackson got a signature. [_transientPostman] <br \/>Postman Jack Jackson got a signature. [_scopedPostman] <br \/>Postman Peter Jackson got a signature. [_singletonPostman] <br \/>Hi! My name is Peter Brown. <br \/>Postman Peter Brown handed the letter. [_transientPostman] <br \/>Postman Jack<\/em><\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-400523","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/400523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=400523"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/400523\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=400523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=400523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=400523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}