{"id":16817,"date":"2024-03-15T13:45:11","date_gmt":"2024-03-15T13:45:11","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-you-get-the-process-port-in-golang\/"},"modified":"2025-08-07T06:08:16","modified_gmt":"2025-08-07T06:08:16","slug":"how-can-you-get-the-process-port-in-golang","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-you-get-the-process-port-in-golang\/","title":{"rendered":"How can you get the process port in Golang?"},"content":{"rendered":"<p>In Go, you can use the Listen() function in the net package to retrieve the port that the process is listening on. Here is an example code:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">package<\/span> main\r\n\r\n<span class=\"hljs-keyword\">import<\/span> (\r\n\t<span class=\"hljs-string\">\"fmt\"<\/span>\r\n\t<span class=\"hljs-string\">\"net\"<\/span>\r\n)\r\n\r\n<span class=\"hljs-function\"><span class=\"hljs-keyword\">func<\/span> <span class=\"hljs-title\">main<\/span><span class=\"hljs-params\">()<\/span><\/span> {\r\n\tlistener, err := net.Listen(<span class=\"hljs-string\">\"tcp\"<\/span>, <span class=\"hljs-string\">\"127.0.0.1:0\"<\/span>)\r\n\t<span class=\"hljs-keyword\">if<\/span> err != <span class=\"hljs-literal\">nil<\/span> {\r\n\t\tfmt.Println(<span class=\"hljs-string\">\"Failed to listen:\"<\/span>, err)\r\n\t\t<span class=\"hljs-keyword\">return<\/span>\r\n\t}\r\n\t<span class=\"hljs-keyword\">defer<\/span> listener.Close()\r\n\r\n\taddress := listener.Addr().(*net.TCPAddr)\r\n\tfmt.Println(<span class=\"hljs-string\">\"Listening on port\"<\/span>, address.Port)\r\n}\r\n<\/code><\/pre>\n<p>In the above code, by passing 127.0.0.1:0 as a parameter, the operating system can choose an available port for us to listen on. Then, we can use the listener.Addr() method to retrieve the actual address being listened on, and access the port being listened on using address.Port.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Go, you can use the Listen() function in the net package to retrieve the port that the process is listening on. Here is an example code: package main import ( &#8220;fmt&#8221; &#8220;net&#8221; ) func main() { listener, err := net.Listen(&#8220;tcp&#8221;, &#8220;127.0.0.1:0&#8221;) if err != nil { fmt.Println(&#8220;Failed to listen:&#8221;, err) return } defer listener.Close() [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[453,1402,299,1404,1403],"class_list":["post-16817","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How can you get the process port in Golang? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about how can you get the process port in golang?. Comprehensive guide with examples and best practices.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-can-you-get-the-process-port-in-golang\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How can you get the process port in Golang?\" \/>\n<meta property=\"og:description\" content=\"Learn about how can you get the process port in golang?. 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