{"id":14601,"date":"2024-01-05T17:17:21","date_gmt":"2024-01-05T13:47:21","guid":{"rendered":"https:\/\/rasanegar.com\/blog\/%d8%b1%d8%a7%d9%87%d9%86%d9%85%d8%a7%db%8c-%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c-%d8%a8%d9%87-%d8%a7%d8%b3%d8%aa%d8%ab%d9%86%d8%a7%d8%a1-%d8%af%d8%b1-expressexception-%d9%87%d8%a7-%d9%88-%d8%ae%d8%b7\/"},"modified":"2024-01-05T17:17:21","modified_gmt":"2024-01-05T13:47:21","slug":"%d8%b1%d8%a7%d9%87%d9%86%d9%85%d8%a7%db%8c-%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c-%d8%a8%d9%87-%d8%a7%d8%b3%d8%aa%d8%ab%d9%86%d8%a7%d8%a1-%d8%af%d8%b1-expressexception-%d9%87%d8%a7-%d9%88-%d8%ae%d8%b7","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%b1%d8%a7%d9%87%d9%86%d9%85%d8%a7%db%8c-%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c-%d8%a8%d9%87-%d8%a7%d8%b3%d8%aa%d8%ab%d9%86%d8%a7%d8%a1-%d8%af%d8%b1-expressexception-%d9%87%d8%a7-%d9%88-%d8%ae%d8%b7\/","title":{"rendered":"\u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 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class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d8%a7%d9%87%d9%86%d9%85%d8%a7%db%8c-%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c-%d8%a8%d9%87-%d8%a7%d8%b3%d8%aa%d8%ab%d9%86%d8%a7%d8%a1-%d8%af%d8%b1-expressexception-%d9%87%d8%a7-%d9%88-%d8%ae%d8%b7\/#%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c_%d8%a8%d9%87_%d8%ae%d8%b7%d8%a7%d9%87%d8%a7%db%8c_%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1%d8%b3%d9%86%d8%ac%db%8c_%d8%af%d8%b1_express\" >\u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062e\u0637\u0627\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062f\u0631 Express<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d8%a7%d9%87%d9%86%d9%85%d8%a7%db%8c-%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c-%d8%a8%d9%87-%d8%a7%d8%b3%d8%aa%d8%ab%d9%86%d8%a7%d8%a1-%d8%af%d8%b1-expressexception-%d9%87%d8%a7-%d9%88-%d8%ae%d8%b7\/#%d9%86%d8%aa%db%8c%d8%ac%d9%87\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d8%a7%d9%87%d9%86%d9%85%d8%a7%db%8c-%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c-%d8%a8%d9%87-%d8%a7%d8%b3%d8%aa%d8%ab%d9%86%d8%a7%d8%a1-%d8%af%d8%b1-expressexception-%d9%87%d8%a7-%d9%88-%d8%ae%d8%b7\/#%d9%85%d9%86%d8%a7%d8%a8%d8%b9_%d8%a7%d8%b6%d8%a7%d9%81%db%8c\" >\u0645\u0646\u0627\u0628\u0639 \u0627\u0636\u0627\u0641\u06cc<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 8<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<div class=\"content\"><noscript><\/p>\n<style>.lazyload-placeholder { display: none;  }<\/style>\n<p><\/noscript><\/p>\n<h2 id=\"introduction\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%b9%d8%b1%d9%81%db%8c\"><\/span>\u0645\u0639\u0631\u0641\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627 \u0648 \u062e\u0637\u0627\u0647\u0627 \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u062a\u0639\u0627\u0645\u0644 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0628\u0627 \u0647\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u06cc \u0631\u062e \u0645\u06cc \u062f\u0647\u0646\u062f\u060c \u0627\u06cc\u0646 \u0628\u0647 \u0645\u0647\u0646\u062f\u0633\u0627\u0646 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f \u06a9\u0647 \u0648\u0633\u06cc\u0644\u0647 \u0627\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0647\u0631 \u062e\u0637\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0631\u062e \u062f\u0647\u062f &#8211; \u0622\u06af\u0627\u0647\u0627\u0646\u0647 \u06cc\u0627 \u0646\u0627\u0622\u06af\u0627\u0647\u0627\u0646\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u0646\u062f.  \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647\u060c \u062a\u0648\u0633\u0639\u0647\u200c\u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0628\u0627\u0637\u0646\u06cc \u06a9\u0647 API \u0631\u0627 \u0628\u0627 Express \u0645\u06cc\u200c\u0633\u0627\u0632\u0646\u062f\u060c \u062f\u0631 \u062a\u0644\u0627\u0634 \u0647\u0633\u062a\u0646\u062f \u062a\u0627 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u0646\u062f \u06a9\u0647 \u062f\u0631 \u062d\u0627\u0644 \u0633\u0627\u062e\u062a \u06cc\u06a9 API \u0645\u0641\u06cc\u062f\u060c \u06a9\u0627\u0631\u0622\u0645\u062f \u0648 \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0647\u0633\u062a\u0646\u062f.  \u0622\u0646\u0686\u0647 \u0627\u0632 \u0627\u0647\u0645\u06cc\u062a \u0628\u06cc\u0634\u062a\u0631\u06cc \u0628\u0631\u062e\u0648\u0631\u062f\u0627\u0631 \u0627\u0633\u062a\u060c \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062e\u0637\u0627\u0647\u0627 \u0628\u0647 \u06af\u0648\u0646\u0647 \u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0633\u06cc\u0633\u062a\u0645\u06cc \u0642\u0648\u06cc \u0628\u0633\u0627\u0632\u06cc\u062f\u060c \u0632\u06cc\u0631\u0627 \u0627\u06cc\u0646 \u0627\u0645\u0631 \u0628\u0647 \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u062a\u0648\u0633\u0639\u0647\u060c \u062e\u0637\u0627\u0647\u0627\u06cc \u0622\u0634\u06a9\u0627\u0631\u060c \u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0628\u0647\u0631\u0647 \u0648\u0631\u06cc \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0645\u0648\u0641\u0642\u06cc\u062a \u06cc\u0627 \u0645\u0642\u06cc\u0627\u0633 \u067e\u0630\u06cc\u0631\u06cc \u062a\u0648\u0633\u0639\u0647 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0631\u0627 \u062a\u0639\u06cc\u06cc\u0646 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0622\u06cc\u0627 \u0628\u0627\u06cc\u062f \u067e\u06cc\u0627\u0645 \u062e\u0637\u0627 \u0631\u0627 \u062b\u0628\u062a \u06a9\u0646\u06cc\u062f\u060c \u062e\u0637\u0627 \u0631\u0627 \u0633\u0631\u06a9\u0648\u0628 \u06a9\u0646\u06cc\u062f\u060c \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0631\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f \u062e\u0637\u0627 \u0622\u06af\u0627\u0647 \u06a9\u0646\u06cc\u062f \u06cc\u0627 \u06a9\u062f \u0628\u0646\u0648\u06cc\u0633\u06cc\u062f \u062a\u0627 \u062e\u0637\u0627\u0647\u0627 \u0631\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u062f\u061f <em>\u062c\u0627\u06cc \u062a\u0639\u062c\u0628 \u0646\u06cc\u0633\u062a<\/em>.<\/p>\n<blockquote>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627\u060c \u0645\u0627 \u06cc\u0627\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u06af\u0631\u0641\u062a \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u06cc\u06a9 \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627 \u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627\u06cc Express \u0628\u0633\u0627\u0632\u06cc\u0645\u060c \u06a9\u0647 \u0628\u0647 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u062e\u0637\u0627\u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0627\u0642\u062f\u0627\u0645\u0627\u062a \u0628\u0647\u06cc\u0646\u0647 \u0628\u0631\u0627\u06cc \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0647\u0631 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0627\u06cc \u0627\u0632 \u062e\u0631\u0627\u0628\u06cc \u062f\u0644\u067e\u0630\u06cc\u0631 \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u062f\u0647\u062f.<\/p>\n<\/blockquote>\n<div class=\"alert alert-note\">\n<div class=\"flex\">\n<div class=\"flex-shrink-0 mr-3\"><\/div>\n<div class=\"w-full\">\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f:<\/strong> \u0645\u0627 \u0627\u0632 Postman \u0628\u0631\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 API \u062f\u0631 \u0646\u0633\u062e\u0647 \u0646\u0645\u0627\u06cc\u0634\u06cc \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f.  \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0622\u0646 \u0631\u0627 \u062f\u0627\u0646\u0644\u0648\u062f \u06a9\u0646\u06cc\u062f \u0631\u0648\u06cc \u0631\u0627 <a rel=\"_blank noopener\" href=\"https:\/\/www.postman.com\/downloads\/\" target=\"_blank\">\u067e\u0633\u062a\u0686\u06cc \u062f\u0627\u0646\u0644\u0648\u062f page<\/a>.  \u0627\u0632 \u0637\u0631\u0641 \u062f\u06cc\u06af\u0631\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647 \u0633\u0627\u062f\u06af\u06cc \u0627\u0632 \u0645\u0631\u0648\u0631\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f command-line <code>curl<\/code>  \u0627\u0628\u0632\u0627\u0631 \u06cc\u0627 \u0647\u0631 \u0627\u0628\u0632\u0627\u0631 \u062f\u06cc\u06af\u0631\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0627 \u0622\u0646 \u0622\u0634\u0646\u0627 \u0628\u0627\u0634\u06cc\u062f.<\/p>\n<\/p><\/div><\/div><\/div>\n<h2 id=\"whatiserrorhandling\"><span class=\"ez-toc-section\" id=\"error_handling_%da%86%db%8c%d8%b3%d8%aa%d8%9f\"><\/span>Error Handling \u0686\u06cc\u0633\u062a\u061f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u062a\u0648\u0633\u0639\u0647 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631\u060c \u062f\u0648 \u0646\u0648\u0639 \u0627\u0633\u062a\u062b\u0646\u0627 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f: <em>\u0639\u0645\u0644\u06cc\u0627\u062a\u06cc<\/em> \u0648 <em>\u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u06cc<\/em>.<\/p>\n<ul>\n<li>\u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0628\u0647 \u0648\u062c\u0648\u062f \u0628\u06cc\u0627\u06cc\u0646\u062f\u060c \u0648 \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632 \u062e\u0627\u062a\u0645\u0647 \u0646\u0627\u06af\u0647\u0627\u0646\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u060c \u0628\u0627\u06cc\u062f \u0627\u06cc\u0646 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627 \u0631\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u06a9\u0627\u0631\u0622\u0645\u062f \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u0645.<\/li>\n<li>\u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u06cc \u0628\u0647 \u0635\u0648\u0631\u062a \u062f\u0633\u062a\u06cc \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u060c \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u06cc\u06a9 \u062d\u0627\u0644\u062a \u0627\u0633\u062a\u062b\u0646\u0627\u06cc\u06cc \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u0634\u0648\u062f\u060c \u067e\u0631\u062a\u0627\u0628 \u0645\u06cc \u0634\u0648\u062f.<\/li>\n<\/ul>\n<p>\u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc &#8220;\u063a\u06cc\u0631 \u0645\u0646\u062a\u0638\u0631\u0647\u060c \u0627\u0645\u0627 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0634\u062f\u0647&#8221; (\u0645\u0627\u0646\u0646\u062f \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u06cc\u06a9 \u0646\u0645\u0627\u06cc\u0647 \u062e\u0627\u0631\u062c \u0627\u0632 \u0645\u062d\u062f\u0648\u062f\u0647) \u0648 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u06cc \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc &#8220;\u0645\u0646\u062a\u0638\u0631\u0647 \u0648 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0634\u062f\u0647&#8221; (\u0645\u0627\u0646\u0646\u062f \u0627\u0633\u062a\u062b\u0646\u0627\u06cc \u0642\u0627\u0644\u0628 \u0628\u0646\u062f\u06cc \u0627\u0639\u062f\u0627\u062f) \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f.<\/p>\n<blockquote>\n<p>Exception Handling \u0631\u0648\u06cc\u0647 \u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u06cc\u0627\u0641\u062a\u0646 \u0648 \u0631\u0641\u0639 \u0639\u06cc\u0648\u0628 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627 \u067e\u06cc\u0627\u0645 \u0647\u0627\u06cc\u06cc \u0631\u0627 \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0634\u0627\u0645\u0644 \u0646\u0648\u0639 \u062e\u0637\u0627\u06cc \u0631\u062e \u062f\u0627\u062f\u0647 \u0648 \u067e\u0634\u062a\u0647 \u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u062e\u0637\u0627 \u0631\u062e \u062f\u0627\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<\/blockquote>\n<div class=\"alert alert-note\">\n<div class=\"flex\">\n<div class=\"flex-shrink-0 mr-3\"><\/div>\n<div class=\"w-full\">\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f:<\/strong> \u062f\u0631 \u0639\u0644\u0648\u0645 \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631\u060c \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627 \u0642\u0627\u0628\u0644 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0647\u0633\u062a\u0646\u062f \u0648 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0627\u0632 \u0645\u0633\u0627\u0626\u0644 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u06cc\u0627 \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0627\u06cc \u062f\u0631 \u0637\u0648\u0644 \u0632\u0645\u0627\u0646 \u0627\u062c\u0631\u0627 \u0646\u0627\u0634\u06cc \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.  \u062e\u0637\u0627\u0647\u0627 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0627\u0632 \u0639\u0648\u0627\u0645\u0644 \u062e\u0627\u0631\u062c\u06cc \u0645\u0627\u0646\u0646\u062f \u0645\u062d\u062f\u0648\u062f\u06cc\u062a\u200c\u0647\u0627\u06cc \u0633\u062e\u062a\u200c\u0627\u0641\u0632\u0627\u0631\u06cc\u060c \u0645\u0634\u06a9\u0644\u0627\u062a \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0627\u062a\u0635\u0627\u0644\u060c \u06a9\u0645\u0628\u0648\u062f \u062d\u0627\u0641\u0638\u0647 \u0648 \u063a\u06cc\u0631\u0647 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u062f\u0631 \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u060c \u0627\u0635\u0637\u0644\u0627\u062d\u0627\u062a \u0627\u063a\u0644\u0628 \u0628\u0647 \u062c\u0627\u06cc \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u0648 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u0627\u0632 <code>Error<\/code> \u06a9\u0644\u0627\u0633  \u0631\u0627 <code>Error<\/code> \u062e\u0648\u062f \u06a9\u0644\u0627\u0633 \u0647\u0645 \u062e\u0637\u0627\u0647\u0627 \u0648 \u0647\u0645 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627 \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<\/p><\/div><\/div><\/div>\n<p>\u062f\u0631 Express\u060c \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0627\u0633\u062a\u062b\u0646\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0627\u0634\u0627\u0631\u0647 \u062f\u0627\u0631\u062f \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 Express \u062e\u0648\u062f \u0631\u0627 \u0628\u0631\u0627\u06cc \u06af\u0631\u0641\u062a\u0646 \u0648 \u062a\u0646\u0638\u06cc\u0645 \u0645\u06cc \u06a9\u0646\u062f process \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627\u06cc \u0647\u0645\u0632\u0645\u0627\u0646 \u0648 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646  \u062e\u0648\u0628\u06cc \u062f\u0631 \u0645\u0648\u0631\u062f \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0627\u0633\u062a\u062b\u0646\u0627 \u062f\u0631 Express \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u0647\u060c \u0646\u06cc\u0627\u0632\u06cc \u0646\u06cc\u0633\u062a \u06a9\u0647 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u0647\u0627\u06cc \u0627\u0633\u062a\u062b\u0646\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u0628\u0646\u0648\u06cc\u0633\u06cc\u062f.  Express \u0628\u0627 \u06cc\u06a9 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u0627\u0633\u062a\u062b\u0646\u0627 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u0627\u0633\u062a\u062b\u0646\u0627 \u0628\u0647 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u062e\u0637\u0627\u0647\u0627 \u0648 \u06af\u0632\u0627\u0631\u0634 \u0622\u0646\u0647\u0627 \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f.  \u0647\u0645\u0686\u0646\u06cc\u0646 \u0627\u0633\u062a\u0631\u0627\u062a\u0698\u06cc \u0647\u0627\u06cc \u0627\u0635\u0644\u0627\u062d\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u0622\u0646\u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u062f \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0627\u062f\u06cc \u062f\u0631 \u0632\u06cc\u0631 \u06a9\u0627\u067e\u0648\u062a \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u06a9\u0646\u062a\u0631\u0644 \u0627\u0633\u062a\u062b\u0646\u0627 \u062f\u0631 Express \u0633\u0631\u0639\u062a \u06a9\u0644\u06cc \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0646\u0645\u06cc \u062f\u0647\u062f. process \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u06cc\u0627 \u062a\u0648\u0642\u0641 \u0627\u062c\u0631\u0627\u06cc \u0622\u0646.<\/p>\n<h2 id=\"understandingexceptionhandlinginexpress\"><span class=\"ez-toc-section\" id=\"%d8%af%d8%b1%da%a9_%d9%85%d9%88%d8%a7%d8%b1%d8%af_%d8%a7%d8%b3%d8%aa%d8%ab%d9%86%d8%a7%db%8c%db%8c_%d8%af%d8%b1_%d8%a7%da%a9%d8%b3%d9%be%d8%b1%d8%b3\"><\/span>\u062f\u0631\u06a9 \u0645\u0648\u0627\u0631\u062f \u0627\u0633\u062a\u062b\u0646\u0627\u06cc\u06cc \u062f\u0631 \u0627\u06a9\u0633\u067e\u0631\u0633<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0627 \u06a9\u0646\u062a\u0631\u0644\u200c\u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627\u06cc \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u06a9\u0647 \u0628\u0627 Express \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0645\u062c\u0645\u0648\u0639\u0647\u200c\u0627\u06cc \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0645\u06cc\u0627\u0646\u200c\u0627\u0641\u0632\u0627\u0631 \u062f\u0631 \u062f\u0633\u062a \u062f\u0627\u0631\u06cc\u0645 \u06a9\u0647 \u0628\u0647 \u06a9\u0634\u0641 \u062e\u0648\u062f\u06a9\u0627\u0631 \u062e\u0637\u0627\u0647\u0627 \u062f\u0631 \u06a9\u0646\u062a\u0631\u0644\u200c\u06a9\u0646\u0646\u062f\u0647\u200c\u0647\u0627\u06cc \u0645\u0633\u06cc\u0631 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f.  \u0628\u0647 \u0632\u0648\u062f\u06cc \u067e\u0631\u0648\u0698\u0647 \u0627\u06cc \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u062a\u0626\u0648\u0631\u06cc \u0627\u06cc\u062c\u0627\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f \u0631\u0648\u06cc \u0686\u06af\u0648\u0646\u0647 \u062e\u0637\u0627\u0647\u0627\u06cc \u0645\u0646\u0627\u0633\u0628 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 Express \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u06cc\u0645 \u0648 \u0686\u06af\u0648\u0646\u0647 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062d\u0633\u0627\u0633 \u0631\u0627 \u062f\u0631\u0632 \u0646\u06a9\u0646\u06cc\u0645.<\/p>\n<h3 id=\"definingmiddlewarefunctioninexpress\"><span class=\"ez-toc-section\" id=\"%d8%aa%d8%b9%d8%b1%db%8c%d9%81_%d8%aa%d8%a7%d8%a8%d8%b9_%d9%85%db%8c%d8%a7%d9%86_%d8%a7%d9%81%d8%b2%d8%a7%d8%b1_%d8%af%d8%b1_express\"><\/span>\u062a\u0639\u0631\u06cc\u0641 \u062a\u0627\u0628\u0639 \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u062f\u0631 Express<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062a\u0648\u0627\u0628\u0639 \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062e\u0637\u0627 \u0628\u0647 \u06af\u0648\u0646\u0647 \u0627\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0646\u062f \u06a9\u0647 \u06cc\u06a9 \u0631\u0627 \u0628\u067e\u0630\u06cc\u0631\u0646\u062f <code>Error<\/code> \u0634\u06cc \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0627\u0648\u0644\u06cc\u0646 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0648\u0631\u0648\u062f\u06cc \u0648 \u0628\u0647 \u062f\u0646\u0628\u0627\u0644 \u0622\u0646 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0647\u0631 \u062a\u0627\u0628\u0639 \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u062f\u06cc\u06af\u0631: <code>request<\/code>\u060c <code>response<\/code>\u060c \u0648 <code>next<\/code>.  \u0631\u0627 <code>next()<\/code> \u062a\u0627\u0628\u0639 \u062a\u0645\u0627\u0645 \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631\u0647\u0627\u06cc \u0641\u0639\u0644\u06cc \u0631\u0627 \u0628\u0647 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627\u06cc \u0628\u0639\u062f\u06cc \u0631\u0648\u062a\u0631 \u067e\u0631\u0634 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<h3 id=\"settinguperrorhandlinginexpress\"><span class=\"ez-toc-section\" id=\"%d8%b1%d8%a7%d9%87_%d8%a7%d9%86%d8%af%d8%a7%d8%b2%db%8c_%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c_%d8%a8%d9%87_%d8%ae%d8%b7%d8%a7_%d8%af%d8%b1_express\"><\/span>\u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062e\u0637\u0627 \u062f\u0631 Express<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u062e\u0648\u062f \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f terminal \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 Node \u0648 Express:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> mkdir error-handling-express<\/span>\n<\/code><\/pre>\n<p>\u062f\u0631 \u067e\u0648\u0634\u0647 \u062c\u062f\u06cc\u062f \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647\u060c \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u06cc\u06a9 \u067e\u0631\u0648\u0698\u0647 Node \u062c\u062f\u06cc\u062f \u0631\u0627 \u0645\u0642\u062f\u0627\u0631\u062f\u0647\u06cc \u0627\u0648\u0644\u06cc\u0647 \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> <span class=\"hljs-built_in\">cd<\/span> error-handling-express &amp;&amp; npm init -y<\/span>\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u0628\u0627\u0639\u062b \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 <code>package.json<\/code> \u0641\u0627\u06cc\u0644 \u062f\u0631 \u067e\u0648\u0634\u0647 \u0645\u0627<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0633\u0631\u0648\u0631 Express \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 Node \u062e\u0648\u062f\u060c \u0628\u0627\u06cc\u062f \u0622\u0646 \u0631\u0627 \u0646\u0635\u0628 \u06a9\u0646\u06cc\u0645 <code>express<\/code> \u0628\u0633\u062a\u0647\u060c <code>dotenv<\/code> \u0628\u0631\u0627\u06cc \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0645\u062d\u06cc\u0637\u06cc \u062f\u0631 <code>.env<\/code> \u0641\u0627\u06cc\u0644 \u0628\u0647 <code>process.env<\/code> \u0634\u06cc\u0621\u060c \u0648 <code>nodemon<\/code> \u0628\u0631\u0627\u06cc \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0645\u062c\u062f\u062f node \u0627\u06af\u0631 \u062a\u063a\u06cc\u06cc\u0631 \u0641\u0627\u06cc\u0644 \u062f\u0631 \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc \u0630\u06a9\u0631 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f\u060c \u0628\u0631\u0646\u0627\u0645\u0647.<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> npm install express dotenv nodemon<\/span>\n<\/code><\/pre>\n<p>\u0628\u0639\u062f\u060c \u06cc\u06a9 \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f <code>app.js<\/code> \u0641\u0627\u06cc\u0644 \u062f\u0631 \u067e\u0648\u0634\u0647 \u067e\u0631\u0648\u0698\u0647 \u06a9\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0641\u0627\u06cc\u0644 \u0641\u0647\u0631\u0633\u062a \u0628\u0631\u0646\u0627\u0645\u0647 \u0639\u0645\u0644 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u06a9\u0647 \u0647\u0645\u0647 \u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u0647\u0627\u06cc \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 Express \u062e\u0648\u062f \u0646\u0635\u0628 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645\u060c \u0628\u0627\u06cc\u062f \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u062e\u0648\u0627\u0646\u062f\u0646 \u0628\u0631\u0646\u0627\u0645\u0647 \u0631\u0627 \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u0645. <code>package.json<\/code> \u0641\u0627\u06cc\u0644.  \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u0646 \u0628\u0647 \u0622\u0646\u060c <code>package.json<\/code> \u0641\u0627\u06cc\u0644\u060c \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 <code>scripts<\/code> \u0634\u06cc \u0645\u0627\u0646\u0646\u062f \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-string\">\"scripts\"<\/span>: {\n    <span class=\"hljs-string\">\"start\"<\/span>: <span class=\"hljs-string\">\"nodemon app.js\"<\/span>\n},\n<\/code><\/pre>\n<p>\u0627\u0632 \u0637\u0631\u0641 \u062f\u06cc\u06af\u0631\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u062f\u062f\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f <code>nodemon<\/code>\u060c \u0648 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>node app.js<\/code> \u0628\u062c\u0627\u06cc.<\/p>\n<h3 id=\"settingupanexpressserver\"><span class=\"ez-toc-section\" id=\"%d8%b1%d8%a7%d9%87_%d8%a7%d9%86%d8%af%d8%a7%d8%b2%db%8c_%d8%b3%d8%b1%d9%88%d8%b1_%d8%a7%da%a9%d8%b3%d9%be%d8%b1%d8%b3\"><\/span>\u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0633\u0631\u0648\u0631 \u0627\u06a9\u0633\u067e\u0631\u0633<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u0631\u0627\u06cc \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0633\u0631\u0648\u0631\u060c \u0627\u0628\u062a\u062f\u0627 \u0628\u0627\u06cc\u062f import \u0628\u0633\u062a\u0647 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0631\u0627 \u062f\u0631 <code>app.js<\/code>.  \u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u06cc\u06a9 \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f <code>.env<\/code> \u0641\u0627\u06cc\u0644 \u062f\u0631 \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc \u067e\u0631\u0648\u0698\u0647 &#8211; \u0628\u0631\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0647\u0645\u0647 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627\u06cc \u0645\u062d\u06cc\u0637\u06cc \u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ app.js<\/span>\n\n<span class=\"hljs-keyword\">const<\/span> express = <span class=\"hljs-built_in\">require<\/span>(<span class=\"hljs-string\">'express'<\/span>)\n<span class=\"hljs-built_in\">require<\/span>(<span class=\"hljs-string\">'dotenv'<\/span>).config\n<\/code><\/pre>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/.env<\/span>\nPORT=<span class=\"hljs-number\">4000<\/span> \n<\/code><\/pre>\n<p>\u0645\u0627 \u0634\u0645\u0627\u0631\u0647 \u067e\u0648\u0631\u062a \u0628\u0631\u0646\u0627\u0645\u0647 \u0631\u0627 \u062f\u0631 \u0622\u0646 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u0645 <code>.env<\/code>\u060c \u06a9\u0647 \u062f\u0631 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0634\u062f\u0647 \u0648 \u062a\u0648\u0633\u0637 \u0622\u0646 \u062e\u0648\u0627\u0646\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f <code>dotenv<\/code>\u060c \u0648 \u0628\u0639\u062f\u0627\u064b \u0642\u0627\u0628\u0644 \u062f\u0633\u062a\u0631\u0633\u06cc \u0627\u0633\u062a.<\/p>\n<h3 id=\"initializingtheexpressserver\"><span class=\"ez-toc-section\" id=\"%d8%b1%d8%a7%d9%87_%d8%a7%d9%86%d8%af%d8%a7%d8%b2%db%8c_%d8%b3%d8%b1%d9%88%d8%b1_%d8%a7%da%a9%d8%b3%d9%be%d8%b1%d8%b3-2\"><\/span>\u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0633\u0631\u0648\u0631 \u0627\u06a9\u0633\u067e\u0631\u0633<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u06a9\u0646\u0648\u0646\u060c \u0628\u0627\u06cc\u062f \u0633\u0631\u0648\u0631 Express \u0631\u0627 \u0645\u0642\u062f\u0627\u0631\u062f\u0647\u06cc \u0627\u0648\u0644\u06cc\u0647 \u06a9\u0646\u06cc\u0645 \u0648 \u0628\u0631\u0646\u0627\u0645\u0647 \u062e\u0648\u062f \u0631\u0627 \u0628\u0647 \u0634\u0645\u0627\u0631\u0647 \u067e\u0648\u0631\u062a \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06cc\u06a9 \u0645\u0633\u06cc\u0631 \u0622\u0632\u0645\u0627\u06cc\u0634\u06cc \u06af\u0648\u0634 \u062f\u0647\u062f &#8211; <code>\/test<\/code>.  \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u0647 \u0631\u0648\u0632 \u06a9\u0646\u06cc\u0645 <code>app.js<\/code>\u060c \u062f\u0631 \u0632\u06cc\u0631 import \u0628\u06cc\u0627\u0646\u06cc\u0647:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ app.js<\/span>\n<span class=\"hljs-keyword\">const<\/span> app = express();\n<span class=\"hljs-keyword\">const<\/span> port = process.env.PORT || <span class=\"hljs-number\">4000<\/span>;\n\napp.get(<span class=\"hljs-string\">\"\/test\"<\/span>, <span class=\"hljs-keyword\">async<\/span> (req, res) =&gt; {\n    <span class=\"hljs-keyword\">return<\/span> res.status(<span class=\"hljs-number\">200<\/span>).json({ <span class=\"hljs-attr\">success<\/span>: <span class=\"hljs-literal\">true<\/span> });\n});\n\napp.listen(port, <span class=\"hljs-function\">() =&gt;<\/span> {\n    <span class=\"hljs-built_in\">console<\/span>.log(<span class=\"hljs-string\">`Server is running at port <span class=\"hljs-subst\">${port}<\/span>`<\/span>);\n});\n<\/code><\/pre>\n<p>\u0627\u0632 \u0627\u06cc\u0646\u062c\u0627 \u0631\u0648\u06cc\u060c \u0645\u0627 \u06cc\u0627\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u06af\u0631\u0641\u062a \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0645\u0648\u0627\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u062e\u062a\u0644\u0641 \u0627\u0632 \u062e\u0637\u0627\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0631\u0627 \u06a9\u0647 \u062f\u0631 Express \u0628\u0627 \u0622\u0646\u0647\u0627 \u0645\u0648\u0627\u062c\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u0645.<\/p>\n<h3 id=\"handlingnotfounderrorsinexpress\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa_%d8%ae%d8%b7%d8%a7%d9%87%d8%a7%db%8c_%db%8c%d8%a7%d9%81%d8%aa_%d9%86%d8%b4%d8%af_%d8%af%d8%b1_express\"><\/span>\u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627\u0647\u0627\u06cc \u06cc\u0627\u0641\u062a \u0646\u0634\u062f \u062f\u0631 Express<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u0628\u0627\u06cc\u062f \u0647\u0645\u0647 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0631\u0627 \u0627\u0632 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0648\u0627\u06a9\u0634\u06cc \u06a9\u0646\u06cc\u062f\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0627 \u0642\u0631\u0627\u0631 \u062f\u0627\u062f\u0646 \u0645\u0646\u0637\u0642 \u062f\u0631 \u06cc\u06a9 \u0633\u0646\u0627\u0631\u06cc\u0648\u06cc \u062e\u0637\u0627\u06cc \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0647\u06cc\u0686 \u062f\u0627\u062f\u0647\u200c\u0627\u06cc \u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f\u060c \u0628\u0647 \u0637\u0648\u0631 \u0645\u0648\u062b\u0631 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u062f. <code>try\/catch<\/code> \u0628\u0644\u0648\u06a9 &#8211; \u0628\u0647 \u0627\u0645\u06cc\u062f \u0627\u06cc\u0646\u06a9\u0647 \u0647\u0631 \u062e\u0637\u0627\u06cc\u06cc \u0631\u0627 \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0622\u0646 \u067e\u062e\u0634 \u0634\u0648\u062f\u060c \u067e\u06cc\u062f\u0627 \u0634\u0648\u062f <code>catch<\/code> \u0645\u0633\u062f\u0648\u062f \u06a9\u0631\u062f\u0646:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/app.js<\/span>\n<span class=\"hljs-keyword\">const<\/span> getUser = <span class=\"hljs-function\">() =&gt;<\/span> <span class=\"hljs-literal\">undefined<\/span>;\n\napp.get(<span class=\"hljs-string\">\"\/get-user\"<\/span>, <span class=\"hljs-keyword\">async<\/span> (req, res) =&gt; {\n    <span class=\"hljs-keyword\">try<\/span> {\n        <span class=\"hljs-keyword\">const<\/span> user = getUser();\n        <span class=\"hljs-keyword\">if<\/span> (!user) {\n            <span class=\"hljs-keyword\">throw<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-built_in\">Error<\/span>(<span class=\"hljs-string\">'User not found'<\/span>);\n        }\n    } <span class=\"hljs-keyword\">catch<\/span> (error) {\n        <span class=\"hljs-comment\">\/\/ Logging the error here<\/span>\n        <span class=\"hljs-built_in\">console<\/span>.log(error); \n        <span class=\"hljs-comment\">\/\/ Returning the status and error message to client<\/span>\n        res.status(<span class=\"hljs-number\">400<\/span>).send(error.message) \n    }\n    <span class=\"hljs-keyword\">return<\/span> res.status(<span class=\"hljs-number\">200<\/span>).json({\n        <span class=\"hljs-attr\">success<\/span>: <span class=\"hljs-literal\">true<\/span>\n    });\n});\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u0646\u062a\u06cc\u062c\u0647 \u062f\u0631:<\/p>\n<pre><code class=\"hljs\">User not found\n<\/code><\/pre>\n<p>\u062d\u0627\u0644\u0627 \u0648\u0642\u062a\u06cc \u0627\u06cc\u0646 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0627\u0646\u062c\u0627\u0645 \u0634\u062f (\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Postman \u062a\u0633\u062a \u06a9\u0646\u06cc\u062f) \u0648 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f \u0631\u0648\u06cc \u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647\u060c \u0645\u0634\u062a\u0631\u06cc \u06cc\u06a9 \u067e\u06cc\u063a\u0627\u0645 \u062e\u0637\u0627\u06cc\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0645\u06cc \u06af\u0648\u06cc\u062f &#8220;\u06a9\u0627\u0631\u0628\u0631 \u067e\u06cc\u062f\u0627 \u0646\u0634\u062f&#8221;.  \u0647\u0645\u0686\u0646\u06cc\u0646\u060c \u0645\u062a\u0648\u062c\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u0634\u062f \u06a9\u0647 \u062e\u0637\u0627 \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645 \u062b\u0628\u062a \u0634\u062f\u0647 \u0627\u0633\u062a console\u060c \u0647\u0645.<\/p>\n<h3 id=\"optimizingerrorhandlingwitherrorhandlermiddleware\"><span class=\"ez-toc-section\" id=\"%d8%a8%d9%87%db%8c%d9%86%d9%87_%d8%b3%d8%a7%d8%b2%db%8c_%d9%85%d8%af%db%8c%d8%b1%db%8c%d8%aa_%d8%ae%d8%b7%d8%a7_%d8%a8%d8%a7_%d9%85%db%8c%d8%a7%d9%86_%d8%a7%d9%81%d8%b2%d8%a7%d8%b1_%da%a9%d9%86%d8%aa%d8%b1%d9%84_%da%a9%d9%86%d9%86%d8%af%d9%87_%d8%ae%d8%b7%d8%a7\"><\/span>\u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627 \u0628\u0627 \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0627 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0645\u06cc\u0627\u0646\u200c\u0627\u0641\u0632\u0627\u0631 \u06a9\u0646\u062a\u0631\u0644\u200c\u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627 \u06a9\u0647 \u062f\u0631 \u0627\u0646\u062a\u0647\u0627\u06cc \u062a\u0645\u0627\u0645 \u0645\u0633\u06cc\u0631\u0647\u0627\u06cc \u062a\u0639\u0631\u06cc\u0641\u200c\u0634\u062f\u0647 \u0642\u0631\u0627\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f\u060c \u062a\u0648\u0633\u0639\u0647 \u0631\u0627 \u0628\u0647\u06cc\u0646\u0647 \u06a9\u0646\u06cc\u0645\u060c \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u0627\u06af\u0631 \u062e\u0637\u0627\u06cc\u06cc \u062f\u0631 \u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0633\u06cc\u0631\u0647\u0627 \u0631\u062e \u062f\u0647\u062f\u060c Express \u0628\u0647\u200c\u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0628\u0647 \u0645\u06cc\u0627\u0646\u200c\u0627\u0641\u0632\u0627\u0631 \u0628\u0639\u062f\u06cc \u0646\u06af\u0627\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u0628\u0647 \u067e\u0627\u06cc\u06cc\u0646 \u0644\u06cc\u0633\u062a \u0627\u062f\u0627\u0645\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f. \u062a\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0628\u0647 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627 \u0628\u0631\u0633\u062f.  \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062e\u0648\u0627\u0647\u062f \u062f\u0627\u062f process \u062e\u0637\u0627 \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0627\u0631\u0633\u0627\u0644 \u067e\u0627\u0633\u062e \u0628\u0647 \u0645\u0634\u062a\u0631\u06cc.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639\u060c \u06cc\u06a9 \u067e\u0648\u0634\u0647 \u0628\u0647 \u0646\u0627\u0645 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f <code>middleware<\/code> \u062f\u0631 \u067e\u0648\u0634\u0647 \u067e\u0631\u0648\u0698\u0647 \u0648 \u062f\u0631 \u0627\u06cc\u0646 \u067e\u0648\u0634\u0647 \u0641\u0627\u06cc\u0644\u06cc \u0628\u0647 \u0646\u0627\u0645 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f <code>errorHandler.js<\/code> \u06a9\u0647 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627 \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-keyword\">const<\/span> errorHandler = <span class=\"hljs-function\">(<span class=\"hljs-params\">error, req, res, next<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-comment\">\/\/ Logging the error here<\/span>\n    <span class=\"hljs-built_in\">console<\/span>.log(error); \n    <span class=\"hljs-comment\">\/\/ Returning the status and error message to client<\/span>\n    res.status(<span class=\"hljs-number\">400<\/span>).send(error.message); \n}\n<span class=\"hljs-built_in\">module<\/span>.exports = errorHandler;\n<\/code><\/pre>\n<p>\u062f\u0631 \u062a\u0627\u0628\u0639 \u0645\u06cc\u0627\u0646\u200c\u0627\u0641\u0632\u0627\u0631 \u062e\u0648\u062f\u060c \u0628\u0627 \u0627\u0641\u0632\u0648\u062f\u0646 <code>error<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0642\u0628\u0644 \u0627\u0632 3 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0627\u0635\u0644\u06cc.<\/p>\n<p>\u0627\u06a9\u0646\u0648\u0646\u060c \u0627\u0632 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627 \u062f\u0631 \u0646\u0633\u062e\u0647 \u06cc \u0646\u0645\u0627\u06cc\u0634\u06cc \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>app.js<\/code> \u0648 \u062e\u0637\u0627\u06cc \u0627\u0648\u0644\u06cc\u0647 \u0648\u0627\u06a9\u0634\u06cc \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0631\u0627 \u0628\u0627 \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627 \u0645\u0627\u0646\u0646\u062f \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ app.js<\/span>\n<span class=\"hljs-keyword\">const<\/span> getUser = <span class=\"hljs-function\">() =&gt;<\/span> <span class=\"hljs-literal\">undefined<\/span>;\n\napp.get(<span class=\"hljs-string\">\"\/get-user\"<\/span>, <span class=\"hljs-keyword\">async<\/span> (req, res, next) =&gt; {\n    <span class=\"hljs-keyword\">try<\/span> {\n        <span class=\"hljs-keyword\">const<\/span> user = getUser();\n        <span class=\"hljs-keyword\">if<\/span> (!user) {\n            <span class=\"hljs-keyword\">throw<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-built_in\">Error<\/span>(<span class=\"hljs-string\">\"User not found\"<\/span>);\n        }\n    } <span class=\"hljs-keyword\">catch<\/span> (error) {\n        <span class=\"hljs-keyword\">return<\/span> next(error);\n    }\n});\n\napp.use(errorHandler);\n<\/code><\/pre>\n<p>\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0627 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0627\u0646\u062a\u0632\u0627\u0639 \u062f\u0631 \u0627\u0637\u0631\u0627\u0641 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u062d\u062a\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0628\u0647\u06cc\u0646\u0647 \u06a9\u0646\u06cc\u0645 <code>try\/catch<\/code> \u0645\u0646\u0637\u0642.  \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0627 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u067e\u0648\u0634\u0647 \u062c\u062f\u06cc\u062f \u062f\u0631 \u0641\u0647\u0631\u0633\u062a \u067e\u0631\u0648\u0698\u0647 \u0628\u0647 \u0627\u06cc\u0646 \u0647\u062f\u0641 \u062f\u0633\u062a \u06cc\u0627\u0628\u06cc\u0645 <code>utils<\/code>\u0648 \u062f\u0631 \u0622\u0646 \u0641\u0627\u06cc\u0644\u06cc \u0628\u0647 \u0646\u0627\u0645 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f <code>tryCatch.js<\/code>.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u0632\u0627\u0639 \u06a9\u0631\u062f\u0646 <code>try-catch<\/code> \u0645\u0646\u0637\u0642 &#8211; \u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u062a\u0627\u0628\u0639\u06cc \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0646\u06cc\u0645 \u06a9\u0647 \u062a\u0627\u0628\u0639 \u062f\u06cc\u06af\u0631\u06cc \u0631\u0627 \u0628\u067e\u0630\u06cc\u0631\u062f (\u0645\u0639\u0631\u0648\u0641 \u0628\u0647 the <em>\u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647<\/em>) \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0622\u0646 \u0627\u0633\u062a \u0648 an \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f <code>async<\/code> \u062a\u0627\u0628\u0639\u06cc \u06a9\u0647 a \u0631\u0627 \u0646\u06af\u0647 \u0645\u06cc \u062f\u0627\u0631\u062f <code>try\/catch<\/code> \u0628\u0631\u0627\u06cc \u0647\u0631 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062f\u0631\u06cc\u0627\u0641\u062a\u06cc<\/p>\n<p>\u0627\u06af\u0631 \u062e\u0637\u0627\u06cc\u06cc \u062f\u0631 \u06a9\u0646\u062a\u0631\u0644\u0631 \u0631\u062e \u062f\u0647\u062f\u060c \u062f\u0631 \u06a9\u0646\u062a\u0631\u0644\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f <code>catch<\/code> \u0628\u0644\u0648\u06a9 \u0648 \u062a\u0627\u0628\u0639 \u0628\u0639\u062f\u06cc \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ tryCatch.js<\/span>\n<span class=\"hljs-keyword\">const<\/span> tryCatch = <span class=\"hljs-function\">(<span class=\"hljs-params\">controller<\/span>) =&gt;<\/span> <span class=\"hljs-keyword\">async<\/span> (req, res, next) =&gt; {\n    <span class=\"hljs-keyword\">try<\/span> {\n        <span class=\"hljs-keyword\">await<\/span> controller(req, res);\n    } <span class=\"hljs-keyword\">catch<\/span> (error) {\n        <span class=\"hljs-keyword\">return<\/span> next(error);\n    }\n};\n<span class=\"hljs-built_in\">module<\/span>.exports = tryCatch;\n<\/code><\/pre>\n<p>\u0628\u0627 <code>try\/catch<\/code> \u0627\u0646\u062a\u0632\u0627\u0639\u060c \u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u06a9\u062f \u062e\u0648\u062f \u0631\u0627 \u0628\u0627 \u0631\u062f \u06a9\u0631\u062f\u0646 \u0627\u0632 \u06a9\u062f \u062e\u0648\u062f \u0628\u0631\u0627\u06cc \u0645\u0648\u062c\u0632\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u0645 <code>try-catch<\/code> \u0628\u0646\u062f \u0628\u0647 \u0635\u0631\u0627\u062d\u062a \u0647\u0646\u06af\u0627\u0645 \u0648\u0627\u06a9\u0634\u06cc \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u062f\u0631 <code>app.js<\/code>:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ app.js<\/span>\n<span class=\"hljs-keyword\">const<\/span> getUser = <span class=\"hljs-function\">() =&gt;<\/span> <span class=\"hljs-literal\">undefined<\/span>;\n\napp.get(\n    <span class=\"hljs-string\">\"\/get-user\"<\/span>,\n    tryCatch(<span class=\"hljs-keyword\">async<\/span> (req, res) =&gt; {\n        <span class=\"hljs-keyword\">const<\/span> user = getUser();\n        <span class=\"hljs-keyword\">if<\/span> (!user) {\n            <span class=\"hljs-keyword\">throw<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-built_in\">Error<\/span>(<span class=\"hljs-string\">\"User not found\"<\/span>);\n        }\n        res.status(<span class=\"hljs-number\">400<\/span>).send(error.message);\n    })\n);\n<\/code><\/pre>\n<p>\u0645\u0627 \u0628\u0627 \u0645\u0648\u0641\u0642\u06cc\u062a \u0645\u0646\u0637\u0642 try-catch \u0631\u0627 \u0627\u0646\u062a\u0632\u0627\u0639 \u06a9\u0631\u062f\u06cc\u0645 \u0648 \u06a9\u062f \u0645\u0627 \u0647\u0645\u0686\u0646\u0627\u0646 \u0645\u0627\u0646\u0646\u062f \u0642\u0628\u0644 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<h3 id=\"handlingvalidationerrorsinexpress\"><span class=\"ez-toc-section\" id=\"%d8%b1%d8%b3%db%8c%d8%af%da%af%db%8c_%d8%a8%d9%87_%d8%ae%d8%b7%d8%a7%d9%87%d8%a7%db%8c_%d8%a7%d8%b9%d8%aa%d8%a8%d8%a7%d8%b1%d8%b3%d9%86%d8%ac%db%8c_%d8%af%d8%b1_express\"><\/span>\u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062e\u0637\u0627\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u062f\u0631 Express<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0646\u0633\u062e\u0647 \u0622\u0632\u0645\u0627\u06cc\u0634\u06cc\u060c \u0645\u0627 \u06cc\u06a9 \u0645\u0633\u06cc\u0631 \u062c\u062f\u06cc\u062f \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 Express \u062e\u0648\u062f \u0628\u0631\u0627\u06cc \u0648\u0631\u0648\u062f \u0627\u06cc\u062c\u0627\u062f \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f &#8211; \u0628\u0631\u0627\u06cc \u062a\u0623\u06cc\u06cc\u062f \u0627\u0639\u062a\u0628\u0627\u0631 \u0634\u0646\u0627\u0633\u0647 \u06a9\u0627\u0631\u0628\u0631 \u067e\u0633 \u0627\u0632 \u0648\u0631\u0648\u062f.  \u0627\u0628\u062a\u062f\u0627 \u0645\u0627 \u0622\u0646 \u0631\u0627 \u0646\u0635\u0628 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>joi<\/code> \u0628\u0633\u062a\u0647\u060c \u0628\u0631\u0627\u06cc \u06a9\u0645\u06a9 \u0628\u0647 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0637\u0631\u062d\u0648\u0627\u0631\u0647\u060c \u06a9\u0647 \u0628\u0627 \u0622\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0631\u0627 \u0627\u0639\u0645\u0627\u0644 \u06a9\u0646\u06cc\u0645:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-meta\">$<\/span><span class=\"bash\"> npm i joi<\/span>\n<\/code><\/pre>\n<p>\u0628\u0639\u062f\u060c \u06cc\u06a9 \u0637\u0631\u062d\u0648\u0627\u0631\u0647 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u06a9\u0647 a <code>Joi.object<\/code> \u0628\u0627 \u06cc\u06a9 <code>userId<\/code> \u06a9\u0647 \u0628\u0627\u06cc\u062f \u06cc\u06a9 \u0639\u062f\u062f \u0628\u0627\u0634\u062f \u0648 \u0627\u0644\u0632\u0627\u0645\u06cc \u0627\u0633\u062a &#8211; \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u06a9\u0647 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0628\u0627\u06cc\u062f \u0628\u0627 \u06cc\u06a9 \u0634\u06cc \u0628\u0627 \u0634\u0646\u0627\u0633\u0647 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f \u0631\u0648\u06cc \u0622\u06cc \u062a\u06cc.<\/p>\n<p>\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645 <code>validate()<\/code> \u0631\u0648\u0634\u06cc \u062f\u0631 \u0634\u06cc schema \u0628\u0631\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0647\u0631 \u0648\u0631\u0648\u062f\u06cc \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0637\u0631\u062d\u0648\u0627\u0631\u0647:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ app.js<\/span>\n<span class=\"hljs-keyword\">const<\/span> schema = Joi.object({\n    <span class=\"hljs-attr\">userId<\/span>: Joi.number().required(),\n});\n\napp.post(\n    <span class=\"hljs-string\">\"\/login\"<\/span>,\n    tryCatch(<span class=\"hljs-keyword\">async<\/span> (req, res) =&gt; {\n        <span class=\"hljs-keyword\">const<\/span> {error, value} = schema.validate({});\n        <span class=\"hljs-keyword\">if<\/span> (error) <span class=\"hljs-keyword\">throw<\/span> error;\n    })\n);\n<\/code><\/pre>\n<p>\u0627\u06af\u0631 \u06cc\u06a9 \u0634\u06cc \u062e\u0627\u0644\u06cc \u0628\u0647 <code>validate()<\/code> \u0628\u0627 \u0631\u0648\u0634\u060c \u062e\u0637\u0627 \u0628\u0647 \u062e\u0648\u0628\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u06cc \u0634\u0648\u062f \u0648 \u067e\u06cc\u0627\u0645 \u062e\u0637\u0627 \u0628\u0631\u0627\u06cc \u0645\u0634\u062a\u0631\u06cc \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/guide-to-exception-handling-in-express-1.png\" alt=\"\" title=\"\"><\/p>\n<p>\u062f\u0631 console\u060c \u0645\u0627 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0628\u0647 a \u062f\u0633\u062a\u0631\u0633\u06cc \u062f\u0627\u0631\u06cc\u0645 <code>details<\/code> \u0622\u0631\u0627\u06cc\u0647 \u0627\u06cc \u06a9\u0647 \u0634\u0627\u0645\u0644 \u062c\u0632\u0626\u06cc\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u06cc \u062f\u0631 \u0645\u0648\u0631\u062f \u062e\u0637\u0627 \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0635\u0648\u0631\u062a \u0646\u06cc\u0627\u0632 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u06a9\u0627\u0631\u0628\u0631 \u0627\u0637\u0644\u0627\u0639 \u062f\u0627\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u062e\u0627\u0635 \u0628\u0647 \u062e\u0637\u0627\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0628\u0647 \u06af\u0648\u0646\u0647\u200c\u0627\u06cc \u06a9\u0647 \u062c\u0632\u0626\u06cc\u0627\u062a \u062e\u0637\u0627\u06cc \u0645\u0646\u0627\u0633\u0628 \u0631\u0627 \u0628\u0647 \u0627\u0632\u0627\u06cc \u0647\u0631 \u062e\u0637\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u0633\u0646\u062c\u06cc \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u062f\u060c \u0645\u06cc\u0627\u0646\u200c\u0627\u0641\u0632\u0627\u0631 \u06a9\u0646\u062a\u0631\u0644\u200c\u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627 \u0631\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0645\u062c\u062f\u062f\u0627\u064b \u0627\u0635\u0644\u0627\u062d \u06a9\u0631\u062f:<\/p>\n<pre><code class=\"hljs\"><span class=\"hljs-comment\">\/\/ errorHandler.js<\/span>\n<span class=\"hljs-keyword\">const<\/span> errorHandler = <span class=\"hljs-function\">(<span class=\"hljs-params\">error, req, res, next<\/span>) =&gt;<\/span> {\n    <span class=\"hljs-built_in\">console<\/span>.log(error); <span class=\"hljs-comment\">\/\/ logging the error here<\/span>\n\n    <span class=\"hljs-keyword\">if<\/span> (error.name === <span class=\"hljs-string\">\"ValidationError\"<\/span>) {\n        <span class=\"hljs-keyword\">return<\/span> res.status(<span class=\"hljs-number\">400<\/span>).send({\n            <span class=\"hljs-attr\">type<\/span>: <span class=\"hljs-string\">\"ValidationError\"<\/span>,\n            <span class=\"hljs-attr\">details<\/span>: error.details,\n        });\n    }\n\n    res.status(<span class=\"hljs-number\">400<\/span>).send(error.message); <span class=\"hljs-comment\">\/\/ returning the status and error message to client<\/span>\n};\n\n<span class=\"hljs-built_in\">module<\/span>.exports = errorHandler;\n<\/code><\/pre>\n<p>\u0628\u0627 <code>errorHandler.js<\/code> \u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631 \u0633\u0641\u0627\u0631\u0634\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0645\u0627 \u0647\u0645\u0627\u0646 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0631\u0627 \u0628\u0627 \u06cc\u06a9 \u0634\u06cc \u062e\u0627\u0644\u06cc \u0627\u0631\u0633\u0627\u0644 \u0645\u06cc \u06a9\u0646\u06cc\u0645 <code>validate()<\/code> \u0631\u0648\u0634:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/rasanegar.com\/blog\/wp-content\/uploads\/2024\/01\/guide-to-exception-handling-in-express-2.png\" alt=\"\" title=\"\"><\/p>\n<p>\u0645\u0627 \u0627\u06a9\u0646\u0648\u0646 \u0628\u0647 \u06cc\u06a9 \u0634\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u062f\u0627\u0631\u06cc\u0645 \u06a9\u0647 \u067e\u06cc\u0627\u0645 \u0647\u0627 \u0631\u0627 \u0628\u0647 \u0634\u06cc\u0648\u0647 \u0627\u06cc \u062e\u0648\u0627\u0646\u0627\/\u062f\u0648\u0633\u062a\u0627\u0646\u0647 \u062a\u0631 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.  \u0628\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628\u060c \u0645\u0627 \u0642\u0627\u062f\u0631 \u0628\u0647 \u0627\u0631\u0633\u0627\u0644 \u0648 \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0627\u0646\u0648\u0627\u0639 \u0645\u062e\u062a\u0644\u0641 \u062e\u0637\u0627\u0647\u0627 \u0647\u0633\u062a\u06cc\u0645 \u0631\u0648\u06cc \u0646\u0648\u0639 \u062e\u0637\u0627\u06cc\u06cc \u06a9\u0647 \u0648\u0627\u0631\u062f \u0645\u06cc \u0634\u0648\u062f<\/p>\n<h2 id=\"conclusion\"><span class=\"ez-toc-section\" id=\"%d9%86%d8%aa%db%8c%d8%ac%d9%87\"><\/span>\u0646\u062a\u06cc\u062c\u0647<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627\u060c \u0647\u0645\u0647 \u062c\u0646\u0628\u0647\u200c\u0647\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627\u06cc Express.js \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0631\u062f\u06cc\u0645\u060c \u0627\u0632 \u062c\u0645\u0644\u0647 \u0631\u0648\u0634 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u062f\u0647\u0627\u06cc \u0647\u0645\u0632\u0645\u0627\u0646 \u0648 \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0628\u0647\u200c\u0637\u0648\u0631 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636\u060c \u0631\u0648\u0634 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0644\u0627\u0633\u200c\u0647\u0627\u06cc \u062e\u0637\u0627\u060c \u0631\u0648\u0634 \u0646\u0648\u0634\u062a\u0646 \u062a\u0648\u0627\u0628\u0639 \u0645\u06cc\u0627\u0646\u200c\u0627\u0641\u0632\u0627\u0631 \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u0648 \u0627\u0631\u0627\u0626\u0647 <code>next<\/code> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0646\u06af\u0647\u062f\u0627\u0631\u0646\u062f\u0647 \u0646\u0647\u0627\u06cc\u06cc \u0634\u06a9\u0627\u0631<\/p>\n<p>\u0645\u0627\u0646\u0646\u062f \u0647\u0631 \u06a9\u0627\u0631 \u062f\u06cc\u06af\u0631\u06cc\u060c \u062f\u0631 \u0637\u0648\u0644 \u062a\u0648\u0633\u0639\u0647 \u0646\u06cc\u0632 \u0628\u0647\u062a\u0631\u06cc\u0646 \u0634\u06cc\u0648\u0647\u200c\u0647\u0627 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0634\u0627\u0645\u0644 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u0648\u062b\u0631 \u062e\u0637\u0627 \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0648 \u0627\u0645\u0631\u0648\u0632 \u0622\u0645\u0648\u062e\u062a\u0647\u200c\u0627\u06cc\u0645 \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u0645 \u062e\u0637\u0627\u0647\u0627 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 Express \u0628\u0647 \u0631\u0648\u0634\u06cc \u0642\u0648\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u0645.<\/p>\n<p>\u0645\u062f\u06cc\u0631\u06cc\u062a \u0635\u062d\u06cc\u062d \u062e\u0637\u0627\u0647\u0627 \u062a\u0646\u0647\u0627 \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u06a9\u0627\u0647\u0634 \u0632\u0645\u0627\u0646 \u062a\u0648\u0633\u0639\u0647 \u0628\u0627 \u06cc\u0627\u0641\u062a\u0646 \u0622\u0633\u0627\u0646 \u0628\u0627\u06af \u0647\u0627 \u0648 \u062e\u0637\u0627\u0647\u0627 \u0646\u06cc\u0633\u062a\u060c \u0628\u0644\u06a9\u0647 \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f \u0642\u0648\u06cc \u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0628\u0632\u0631\u06af \u0627\u0633\u062a.  \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627 \u0631\u0648\u0634 \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u0628\u0631\u0627\u06cc \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0631\u0627 \u062f\u06cc\u062f\u06cc\u0645.  \u0628\u0631\u062e\u06cc \u0627\u0632 \u0631\u0627\u0647\u200c\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u0628\u0631\u0627\u06cc \u0628\u0647\u0628\u0648\u062f \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627 \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632: \u0627\u0631\u0633\u0627\u0644 \u0646\u06a9\u0631\u062f\u0646 \u0631\u062f\u06cc\u0627\u0628\u06cc \u067e\u0634\u062a\u0647\u200c\u0647\u0627\u060c \u062a\u0648\u0642\u0641 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627 \u0628\u0647\u200c\u062e\u0648\u0628\u06cc \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0627\u0633\u062a\u062b\u0646\u0627\u0626\u0627\u062a \u06a9\u0634\u0641 \u0646\u0634\u062f\u0647\u060c \u0627\u0631\u0627\u0626\u0647 \u067e\u06cc\u0627\u0645\u200c\u0647\u0627\u06cc \u062e\u0637\u0627\u06cc \u0645\u0646\u0627\u0633\u0628\u060c \u0627\u0631\u0633\u0627\u0644 \u06af\u0632\u0627\u0631\u0634\u200c\u0647\u0627\u06cc \u062e\u0637\u0627\u060c \u0648 \u0631\u0627\u0647\u200c\u0627\u0646\u062f\u0627\u0632\u06cc \u06a9\u0644\u0627\u0633\u06cc \u06a9\u0647 \u062f\u0627\u0645\u0646\u0647 \u0631\u0627 \u06af\u0633\u062a\u0631\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f. <code>Error<\/code> \u06a9\u0644\u0627\u0633<\/p>\n<p>\u0627\u0645\u06cc\u062f\u0648\u0627\u0631\u0645 \u0645\u062b\u0627\u0644 \u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0622\u0645\u0648\u0632\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0645 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u0644\u0630\u062a \u0628\u062e\u0634 \u0628\u0648\u062f\u0647 \u0628\u0627\u0634\u062f.  \u0645\u0646 \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u0631\u0627 \u067e\u0648\u0634\u0634 \u062f\u0627\u062f\u0645 \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0647\u0646\u06af\u0627\u0645 \u0646\u0648\u0634\u062a\u0646 \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 Express \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc \u062f\u0631 \u0645\u0648\u0631\u062f \u0645\u062f\u06cc\u0631\u06cc\u062a \u062e\u0637\u0627 \u0628\u0627 \u0622\u0646\u0647\u0627 \u0631\u0648\u0628\u0631\u0648 \u0634\u0648\u06cc\u062f.  \u0644\u0637\u0641\u0627 \u0627\u06af\u0631 \u0645\u0648\u0631\u062f\u06cc \u0628\u0648\u062f \u06a9\u0647 \u0627\u0632 \u0642\u0644\u0645 \u0627\u0641\u062a\u0627\u062f\u0645 \u0628\u0647 \u0645\u0646 \u0627\u0637\u0644\u0627\u0639 \u062f\u0647\u06cc\u062f.  \u0627\u06cc\u0646 \u0628\u0631\u0627\u06cc \u0645\u0627 \u0645\u0641\u06cc\u062f \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f \u0648 \u0628\u0647 \u0645\u0646 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0628\u06cc\u0634\u062a\u0631 \u06cc\u0627\u062f \u0628\u06af\u06cc\u0631\u0645.  \u0631\u0648\u0632 \u062e\u0648\u0628\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u0648 \u0645\u0645\u0646\u0648\u0646 \u06a9\u0647 \u062e\u0648\u0627\u0646\u062f\u06cc\u062f.<\/p>\n<p>\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647 \u062a\u0645\u0627\u0645 \u06a9\u062f\u0647\u0627\u06cc \u0645\u0646\u0628\u0639 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0645\u0642\u0627\u0644\u0647 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f \u0631\u0648\u06cc <a target=\"_blank\" href=\"https:\/\/github.com\/UcheAzubuko\/error-handling-express\" rel=\"noopener\">GitHub<\/a>.<\/p>\n<h2 id=\"additionalresources\"><span class=\"ez-toc-section\" id=\"%d9%85%d9%86%d8%a7%d8%a8%d8%b9_%d8%a7%d8%b6%d8%a7%d9%81%db%8c\"><\/span>\u0645\u0646\u0627\u0628\u0639 \u0627\u0636\u0627\u0641\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/expressjs.com\/\">Express.js Documentation<\/a><\/li>\n<\/ul>\n<\/div>\n<p>    (\u0628\u0631\u0686\u0633\u0628\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u062a\u0631\u062c\u0645\u0647)# \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a<br \/>\n<br \/><br \/>\n<br \/>\u0645\u0646\u062a\u0634\u0631 \u0634\u062f\u0647 \u062f\u0631 1403-01-05 17:17:07<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;14601&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0627\u0633\u062a\u062b\u0646\u0627\u0621 \u062f\u0631 ExpressException \u0647\u0627 \u0648 \u062e\u0637\u0627\u0647\u0627 \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u062a\u0639\u0627\u0645\u0644 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0628\u0627 \u0647\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u06cc \u0631\u062e \u0645\u06cc \u062f\u0647\u0646\u062f\u060c \u0627\u06cc\u0646 \u0628\u0647 \u0645\u0647\u0646\u062f\u0633\u0627\u0646 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f \u06a9\u0647 \u0648\u0633\u06cc\u0644\u0647 \u0627\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0647\u0631 \u062e\u0637\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0631\u062e \u062f\u0647\u062f - \u0622\u06af\u0627\u0647\u0627\u0646\u0647 \u06cc\u0627 \u0646\u0627\u0622\u06af\u0627\u0647\u0627\u0646\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u0646\u062f.  \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647\u060c \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0628\u0627\u0637\u0646\u06cc \u06a9\u0647 API \u0631\u0627 \u0628\u0627 Express \u0645\u06cc \u0633\u0627\u0632\u0646\u062f\u060c \u062f\u0631 \u062a\u0644\u0627\u0634 \u0647\u0633\u062a\u0646\u062f \u062a\u0627 \u0645\u0637\u0645\u0626\u0646 \u0634\u0648\u0646\u062f \u06a9\u0647...&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 8<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0645\u0639\u0631\u0641\u06cc \u0627\u0633\u062a\u062b\u0646\u0627\u0647\u0627 \u0648 \u062e\u0637\u0627\u0647\u0627 \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u062a\u0639\u0627\u0645\u0644 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0628\u0627 \u0647\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u06cc \u0631\u062e \u0645\u06cc \u062f\u0647\u0646\u062f\u060c \u0627\u06cc\u0646 \u0628\u0647 \u0645\u0647\u0646\u062f\u0633\u0627\u0646 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f \u06a9\u0647 \u0648\u0633\u06cc\u0644\u0647 \u0627\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u0647\u0631 \u062e\u0637\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0631\u062e \u062f\u0647\u062f &#8211; \u0622\u06af\u0627\u0647\u0627\u0646\u0647 \u06cc\u0627 \u0646\u0627\u0622\u06af\u0627\u0647\u0627\u0646\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u0646\u062f. \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647\u060c \u062a\u0648\u0633\u0639\u0647\u200c\u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0628\u0627\u0637\u0646\u06cc \u06a9\u0647 API \u0631\u0627 \u0628\u0627 Express \u0645\u06cc\u200c\u0633\u0627\u0632\u0646\u062f\u060c \u062f\u0631 \u062a\u0644\u0627\u0634 \u0647\u0633\u062a\u0646\u062f [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":14602,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1772,620],"tags":[],"class_list":["post-14601","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript","category-programming"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/14601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=14601"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/14601\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/14602"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=14601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=14601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=14601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}