<\/div>\n

Merhaba,<\/p>\n

Biz yaz\u0131l\u0131m geli\u015ftiriciler bir uygulaman\u0131n bulundu\u011fu a\u015famalara dayal\u0131, davran\u0131\u015f\u0131n\u0131 kontrol etmek ve y\u00f6nlendirmek isteyebiliriz. Bunun i\u00e7in bu i\u00e7eri\u011fimizde Asp.NET Core uygulamalar\u0131n\u0131n runtime’da ki davran\u0131\u015f\u0131n\u0131 belirleyen environment variable \u00fczerine konu\u015fuyor olaca\u011f\u0131z.<\/p>\n

Asp.NET Core \u00e7al\u0131\u015fma ortam\u0131n\u0131 belirleyebilmek i\u00e7in ‘ASPNETCORE_ENVIRONMENT’ isimli de\u011fi\u015fkeni kullanmaktad\u0131r. Bu de\u011fi\u015fkenin de\u011feri ihtiyaca g\u00f6re herhangi bir de\u011fer olabilir lakin genellikle geli\u015ftirme, sahneleme yahut prod\u00fcksiyon anlamlar\u0131na kar\u015f\u0131l\u0131k gelen ‘Development’, ‘Staging’ ve ‘Production’ durumlar\u0131 tercih edilmektedir. Bu de\u011ferler Linux i\u015fletim sistemlerinde b\u00fcy\u00fck k\u00fc\u00e7\u00fck harf duyarl\u0131l\u0131\u011f\u0131na sahipken, Windows ve Mac OS i\u015fletim sistemlerinde \u00f6nemli de\u011fildir.<\/p>\n

Bir Asp.NET Core uygulamas\u0131nda Environment de\u011fi\u015fkenlere eri\u015febilmek i\u00e7in Solution Explorer’dan projeye sa\u011f t\u0131klayarak ‘Properties’ -> ‘Debug’ kombinasyonunu takip etmeniz yeterlidir.
\n $\"Asp.NET$ <\/a>
\nA\u00e7\u0131lan pencerede yukar\u0131da g\u00f6r\u00fcld\u00fc\u011f\u00fc \u00fczere “Environment variables” k\u0131sm\u0131nda name – value tarz\u0131nda ortam de\u011fi\u015fkenleri tutulmaktad\u0131r. Burada a\u015fa\u011f\u0131da oldu\u011fu gibi istedi\u011finiz kadar de\u011fi\u015fken olu\u015fturabilirsiniz.
\n $\"Asp.NET$ <\/a>
\nBu de\u011fi\u015fkenler a\u015fa\u011f\u0131da g\u00f6r\u00fcld\u00fc\u011f\u00fc gibi Solution Explorer’da ki ‘Properties’ sekmesi i\u00e7erisindeki ‘launchSettings.json’ dosyas\u0131nda ‘environmentVariables’ node’unda tutulmaktad\u0131r.
\n $\"Asp.NET$ <\/a>
\nDolay\u0131s\u0131yla bu dosya \u00fczerinden ortam de\u011fi\u015fkenlerine her t\u00fcrl\u00fc m\u00fcdahalede bulunabilir, ekleyip, silebilirsiniz.<\/p>\n

Runtime’da Ortam De\u011fi\u015fkenlerine Eri\u015fim<\/h3>\n
Asp.NET Core uygulamalar\u0131nda bulunan ‘Startup.cs’ dosyas\u0131 \u00fczerinden ‘ASPNETCORE_ENVIRONMENT’ environment de\u011ferini i\u00e7eren ‘IWebHostEnvironment’ parametresi arac\u0131l\u0131\u011f\u0131yla ‘IsDevelopment’, ‘IsProduction’ ve ‘IsStaging’ durumlar\u0131na g\u00f6re genel environment kontrol\u00fc sa\u011flanabilmektedir.
\n $\"Asp.NET$ <\/a><\/p>\n

Environment De\u011fi\u015fkenlerin appsettings.json Dosyas\u0131n\u0131 Ezmesi<\/h3>\n

Asp.NET Core uygulamalar\u0131nda statik verileri ‘appsettings.json’ tutmaktay\u0131z ve biliyoruz ki bu dosyadaki verileri okuyabilmek i\u00e7in IConfiguration t\u00fcr\u00fc \u00fczerinden tarama ger\u00e7ekle\u015ftirmemiz gerekmektedir.<\/p>\n

Uygulamada ‘appsettings.json’ dosyas\u0131ndaki tan\u0131mlanan alanlar ile ayn\u0131 isimde tan\u0131mlanan environment de\u011fi\u015fkenler s\u00f6z konusuysa environment de\u011fi\u015fkenler daha \u00fcst seviyede olduklar\u0131 i\u00e7in ‘appsettings.json’ dosyas\u0131ndaki verileri ezerek \u00f6ncelik elde ederler.
\n\u015e\u00f6yle ki;<\/p>\n

\r\n-- appsettings.json --\r\n{\r\n  "Field": "Field Value - Appsettings.json"\r\n}\r\n<\/pre>\ni\u00e7eri\u011fine sahip olan bir ‘appsettings.json’ dosyas\u0131yla birlikte ayn\u0131 name de\u011ferine sahip a\u015fa\u011f\u0131daki gibi environment de\u011fi\u015fken tan\u0131mland\u0131\u011f\u0131nda environment de\u011fi\u015fkenin ‘appsettings.json’ dosyas\u0131n\u0131 ezdi\u011fi g\u00f6zlemlenir.
\n<\/a>
\nTalep;
\n<\/a><\/p>\n
Yani buradan anla\u015f\u0131lan uygulamada bir ‘Configuration[“…”]’ komutu \u00e7al\u0131\u015ft\u0131r\u0131l\u0131yorsa \u00f6ncelikle environment ortam\u0131 sorgulanacakt\u0131r. E\u011fer ilgili veri bulunamazsa s\u0131ras\u0131yla ‘secrets.json’ ve ard\u0131ndan ‘appsettings.json’ dosyalar\u0131nda inceleme ger\u00e7ekle\u015ftirilecektir.<\/p>\n
Asp.NET Core MVC’de Environment Kontrol\u00fc<\/h3>\nE\u011fer \u00fczerinde \u00e7al\u0131\u015f\u0131lan uygulama altyap\u0131s\u0131 bir MVC mimarisine dayal\u0131ysa View katman\u0131nda environment’a g\u00f6re ayr\u0131 i\u015flem ger\u00e7ekle\u015ftirebilmek i\u00e7in a\u015fa\u011f\u0131daki tag halper’\u0131 kullanabilirsiniz. <\/p>\n
\r\n<environment names="Development">\r\n    Development ortam\u0131nda...\r\n<\/environment>\r\n<environment names="Production">\r\n    Production ortam\u0131nda...\r\n<\/environment>\r\n<\/pre>\n\u0130lgilenenlerin faydalanmas\u0131 dile\u011fiyle…
\nSonraki yaz\u0131lar\u0131mda g\u00f6r\u00fc\u015fmek \u00fczere…
\n\u0130yi \u00e7al\u0131\u015fmalar…<\/p>\n","protected":false},"excerpt":{"rendered":"
Merhaba, Biz yaz\u0131l\u0131m geli\u015ftiriciler bir uygulaman\u0131n bulundu\u011fu a\u015famalara dayal\u0131, davran\u0131\u015f\u0131n\u0131 kontrol etmek ve y\u00f6nlendirmek isteyebiliriz. Bunun i\u00e7in bu i\u00e7eri\u011fimizde Asp.NET Core uygulamalar\u0131n\u0131n runtime’da ki davran\u0131\u015f\u0131n\u0131 belirleyen environment variable \u00fczerine konu\u015fuyor olaca\u011f\u0131z. Asp.NET Core \u00e7al\u0131\u015fma...<\/p>\n","protected":false},"author":1,"featured_media":9596,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3102],"tags":[3365,3367,3368,3369,3364,3366,3371,3370],"class_list":["post-14921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-asp-net-core","tag-asp-net-core-environment","tag-asp-net-core-environment-variable","tag-aspnetcore_environment","tag-development","tag-environment","tag-environment-variable","tag-production","tag-staging"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/14921","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=14921"}],"version-history":[{"count":17,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/14921\/revisions"}],"predecessor-version":[{"id":14944,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/14921\/revisions\/14944"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media\/9596"}],"wp:attachment":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media?parent=14921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/categories?post=14921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/tags?post=14921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}