{"id":9274,"date":"2022-03-15T20:23:16","date_gmt":"2022-03-15T20:23:16","guid":{"rendered":"http:\/\/putridparrot.com\/blog\/?p=9274"},"modified":"2022-03-15T20:23:16","modified_gmt":"2022-03-15T20:23:16","slug":"nlog-embedding-runtime-variables","status":"publish","type":"post","link":"https:\/\/putridparrot.com\/blog\/nlog-embedding-runtime-variables\/","title":{"rendered":"NLog embedding runtime variables"},"content":{"rendered":"

Sometimes you’ll want to set your NLog configuration up to output the log files to an environment, i.e. %APPDATA%\/MyApp\/Logging\/UAT – but you’ll only know the selected environment at runtime.<\/p>\n

This is where we can embed ${var:NAME}, where NAME is a key to your variable. In our case this will be ENV for environment.<\/p>\n

So for example, let’s assume we have this fileName in your NLog configuration like this<\/p>\n

\r\nfileName="${specialfolder:folder=ApplicationData}\/MyApp\/Logging\/${var:ENV}\/logfile_{$shortdate}.log\r\n<\/pre>\n
As you can see from the above, we’ve included the built-in specialfolder<\/em> and shortdate<\/em> variables. For the ${var:ENV} we need to supply using “env” variable in our code, for example<\/p>\n
\r\nLogManager.Configurations.Variables["env"] = GetCurrentEnvironment()\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
Sometimes you’ll want to set your NLog configuration up to output the log files to an environment, i.e. %APPDATA%\/MyApp\/Logging\/UAT – but you’ll only know the selected environment at runtime. This is where we can embed ${var:NAME}, where NAME is a key to your variable. In our case this will be ENV for environment. So for […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[326],"tags":[],"class_list":["post-9274","post","type-post","status-publish","format-standard","hentry","category-nlog"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/posts\/9274","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/comments?post=9274"}],"version-history":[{"count":3,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/posts\/9274\/revisions"}],"predecessor-version":[{"id":9279,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/posts\/9274\/revisions\/9279"}],"wp:attachment":[{"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/media?parent=9274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/categories?post=9274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/tags?post=9274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}