<\/div>\n

Merhaba,<\/p>\n

Bu i\u00e7eri\u011fimizde, server’a ba\u011fl\u0131 client’lara ileti g\u00f6ndermeye y\u00f6nelik temel soyutlama yapmam\u0131z\u0131 sa\u011flayan ve b\u00f6ylece ileti g\u00f6nderimini Hub d\u0131\u015f\u0131 kontrol haline getiren SignalR IHubContext<T> interface’i \u00fczerine konu\u015fuyor olaca\u011f\u0131z.<\/p>\n

IHubContext<T> Interface’i Nedir? Ne \u0130\u015fe Yarar?<\/h3>\n
IHubContext<T> interface’i, ‘Hub’ s\u0131n\u0131flar\u0131n\u0131n d\u0131\u015f\u0131nda SignalR mimarisini kullanmam\u0131z\u0131 ve b\u00f6ylece farkl\u0131 bir s\u0131n\u0131f yahut controller vs. gibi yap\u0131lar \u00fczerinden client ile server aras\u0131nda etkile\u015fime girmemizi sa\u011flayan bir soyutlamad\u0131r. IHubContext<T> interface’i sayesinde geli\u015ftirilen context \u00f6rne\u011fi Dependency Injection provider’\u0131na instance olarak eklenebilmekte ve kurumsal yap\u0131lanmalarda daha \u015f\u0131k ve mimarisel bir yakla\u015f\u0131m sergilenebilmektedir.<\/p>\n

IHubContext<T> Interface’i Nas\u0131l Kullan\u0131l\u0131r?<\/h3>\n

IHubContext<T> interface’ini kullanabilmek i\u00e7in yap\u0131sal olarak bir Hub’a ihtiya\u00e7 vard\u0131r. Yani her halukarda bir Hub tasarlaman\u0131z ve ‘Startup.cs’ dosyas\u0131nda servis olarak eklemeniz gerekmektedir.<\/p>\n

\r\n    public class MyHub : Hub\r\n    {\r\n        public async Task SendMessageAsync(string message)\r\n        {\r\n            await Clients.All.SendAsync("receiveMessage", message);\r\n        }\r\n        .\r\n        .\r\n        .\r\n    }\r\n<\/pre>\n\r\n    public class Startup\r\n    {\r\n        public void ConfigureServices(IServiceCollection services)\r\n        {\r\n            .\r\n            .\r\n            .\r\n            services.AddSignalR();\r\n        }\r\n\r\n        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)\r\n        {\r\n            .\r\n            .\r\n            .\r\n            app.UseEndpoints(endpoints =>\r\n            {\r\n                endpoints.MapControllers();\r\n                endpoints.MapHub<MyHub>("\/myhub");\r\n            });\r\n        }\r\n    }\r\n<\/pre>\nArd\u0131ndan bu Hub’\u0131 kullanarak herhangi bir class yahut controller \u00fczerinden Hub d\u0131\u015f\u0131 bir etkile\u015fime girmek istiyorsan\u0131z e\u011fer a\u015fa\u011f\u0131daki gibi \u00e7al\u0131\u015fma sergileyebilirsiniz;
\nClass \u00dczerinde Hub D\u0131\u015f\u0131 \u0130leti G\u00f6nderimi<\/strong>
\nClass;<\/p>\n
\r\n    public class MyClass\r\n    {\r\n        readonly IHubContext<MyHub> _hubContext;\r\n        public MyClass(IHubContext<MyHub> hubContext)\r\n        {\r\n            _hubContext = hubContext;\r\n        }\r\n        public async Task SendMessageAsync(string message)\r\n        {\r\n            await _hubContext.Clients.All.SendAsync("receiveMessage", message);\r\n        }\r\n    }\r\n<\/pre>\nStartup;<\/p>\n
\r\n    public class Startup\r\n    {\r\n        public void ConfigureServices(IServiceCollection services)\r\n        {\r\n            .\r\n            .\r\n            .\r\n            services.AddTransient<MyClass>();\r\n            .\r\n            .\r\n            .\r\n        }\r\n        .\r\n        .\r\n        .\r\n    }\r\n<\/pre>\nController;<\/p>\n
\r\n    [Route("api\/[controller]")]\r\n    [ApiController]\r\n    public class HomeController : ControllerBase\r\n    {\r\n        MyClass _myClass;\r\n        public HomeController(MyClass myClass)\r\n        {\r\n            _myClass = myClass;\r\n        }\r\n        async public Task<IActionResult> Index()\r\n        {\r\n            await _myClass.SendMessageAsync("Merhaba");\r\n            return Ok();\r\n        }\r\n    }\r\n<\/pre>\nG\u00f6r\u00fcld\u00fc\u011f\u00fc \u00fczere class \u00fczerinden Hub d\u0131\u015f\u0131 ileti g\u00f6nderimini ger\u00e7ekle\u015ftirebilmek i\u00e7in class’\u0131n constructor’\u0131ndan talep edilen IHubContext<T> t\u00fcr\u00fcnden nesneyi ‘Startup.cs’ dosyas\u0131 \u00fczerinden uygulamaya enjekte etmemiz gerekiyor. Ard\u0131ndan bu s\u0131n\u0131f\u0131 controller’lar da(ki genellikle controller’da kullan\u0131labilme olas\u0131l\u0131\u011f\u0131 y\u00fcksek oldu\u011fu i\u00e7in controller \u00f6rneklendirilmi\u015ftir) dependency injection ile talep ediyoruz. Aksi taktirde ilgili s\u0131n\u0131f\u0131n nesnesini ‘new’ ile olu\u015ftursayd\u0131k constructor’\u0131nda isteyece\u011fi Hub context’ine kar\u015f\u0131 manuel olarak bir nesne verememekteyiz. Velhas\u0131l-\u0131 kelam bu \u015fekilde yap\u0131lan bir \u00e7al\u0131\u015fma neticesinde ‘MyClass’ nesnesi \u00fczerinden SignalR teknolojisi kullan\u0131larak client ile server aras\u0131nda e\u015fzamanl\u0131 bir etkile\u015fime a\u015fa\u011f\u0131daki ekran g\u00f6r\u00fcnt\u00fcs\u00fcnde de oldu\u011fu gibi girilebilmektedir.
\n<\/a>
\nController \u00dczerinde Hub D\u0131\u015f\u0131 \u0130leti G\u00f6nderimi<\/strong>
\nIHubContext<T> interface’i controller class’lar\u0131 \u00fczerinden herhangi bir class’a ihtiya\u00e7 duymaks\u0131z\u0131n direkt olarak DI ile talep edilebilir. \u015e\u00f6yle ki;<\/p>\n
\r\n    [Route("api\/[controller]")]\r\n    [ApiController]\r\n    public class HomeController : ControllerBase\r\n    {\r\n        IHubContext<MyHub> _hubContext;\r\n        public HomeController(IHubContext<MyHub> hubContext)\r\n        {\r\n            _hubContext = hubContext;\r\n        }\r\n        async public Task<IActionResult> Index()\r\n        {\r\n            await _hubContext.Clients.All.SendAsync("receiveMessage", "Merhaba");\r\n            return Ok();\r\n        }\r\n    }\r\n<\/pre>\n\u015feklinde \u00e7al\u0131\u015farak ayn\u0131 neticeyi elde edebilirsiniz.<\/p>\n
\u0130lgilenenlerin faydalanmas\u0131 dile\u011fiyle…
\nSonraki yaz\u0131lar\u0131mda g\u00f6r\u00fc\u015fmek \u00fczere…
\n\u0130yi \u00e7al\u0131\u015fmalar…<\/p>\nNot: \u00d6rnek uygulamay\u0131 indirebilmek i\u00e7in buraya<\/a> t\u0131klay\u0131n\u0131z.<\/p>\n","protected":false},"excerpt":{"rendered":"
Merhaba, Bu i\u00e7eri\u011fimizde, server’a ba\u011fl\u0131 client’lara ileti g\u00f6ndermeye y\u00f6nelik temel soyutlama yapmam\u0131z\u0131 sa\u011flayan ve b\u00f6ylece ileti g\u00f6nderimini Hub d\u0131\u015f\u0131 kontrol haline getiren SignalR IHubContext<T> interface’i \u00fczerine konu\u015fuyor olaca\u011f\u0131z. IHubContext<T> Interface’i Nedir? Ne \u0130\u015fe Yarar?...<\/p>\n","protected":false},"author":1,"featured_media":17653,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3760],"tags":[3793,3799,639,3795,3794],"class_list":["post-17846","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-signalr","tag-ihubcontext","tag-ihubcontext-interfacei-nedir","tag-signalr","tag-signalr-ihubcontext","tag-signalr-ihubcontext-interface"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/17846","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/comments?post=17846"}],"version-history":[{"count":13,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/17846\/revisions"}],"predecessor-version":[{"id":17864,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/17846\/revisions\/17864"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media\/17653"}],"wp:attachment":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media?parent=17846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/categories?post=17846"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/tags?post=17846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}