{"id":24908,"date":"2023-05-26T21:38:08","date_gmt":"2023-05-26T18:08:08","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/expressjs-server-error-handling-explained-2e4d\/"},"modified":"2023-05-26T21:38:08","modified_gmt":"2023-05-26T18:08:08","slug":"expressjs-server-error-handling-explained-2e4d","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/expressjs-server-error-handling-explained-2e4d\/","title":{"rendered":"\u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062e\u0637\u0627\u06cc \u0633\u0631\u0648\u0631 Express.js \u062a\u0648\u0636\u06cc\u062d \u062f\u0627\u062f\u0647 \u0634\u062f"},"content":{"rendered":"<div data-article-id=\"1459903\" id=\"article-body\">\n<p>\u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u0648\u062b\u0631 \u062e\u0637\u0627 \u062f\u0631 \u0648\u0628 \u0633\u0631\u0648\u0631 \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u062c\u0632\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u062f\u0631 \u062a\u0648\u0633\u0639\u0647 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0646\u0639\u0637\u0627\u0641 \u067e\u0630\u06cc\u0631 \u0627\u0633\u062a\u060c \u0632\u06cc\u0631\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u06cc\u06a9 \u062e\u0637\u0627 \u0628\u0647 \u0637\u0648\u0631 \u0645\u0648\u062b\u0631 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u06cc \u0634\u0648\u062f\u060c \u0627\u062d\u062a\u0645\u0627\u0644 \u06a9\u0645\u062a\u0631\u06cc \u062f\u0627\u0631\u062f \u06a9\u0647 \u0647\u0646\u06af\u0627\u0645 \u0628\u0631\u0648\u0632 \u0645\u0634\u06a9\u0644 \u0639\u0635\u0628\u0627\u0646\u06cc \u0634\u0648\u06cc\u062f.  \u0628\u0627 \u0627\u0631\u0627\u0626\u0647 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0645\u0641\u06cc\u062f \u0648 \u06a9\u062f \u062e\u0637\u0627\u06cc \u062f\u0642\u06cc\u0642\u060c \u0642\u0627\u062f\u0631 \u0628\u0647 \u0639\u06cc\u0628 \u06cc\u0627\u0628\u06cc \u0633\u0631\u06cc\u0639 \u062e\u0648\u0627\u0647\u06cc\u062f \u0628\u0648\u062f.<br \/>\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0641\u0642\u0637 \u0628\u0647 \u062e\u0637\u0627\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u067e\u0631\u062f\u0627\u062e\u062a\u0647 \u062e\u0648\u0627\u0647\u062f \u0634\u062f.  \u0642\u0628\u0644 \u0627\u0632 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u0647 \u0646\u062d\u0648\u0647 \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062e\u0631\u0627\u0628\u06cc \u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0628\u067e\u0631\u062f\u0627\u0632\u06cc\u0645\u060c \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u06cc\u06a9 \u0633\u0631\u0648\u0631 node.js \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 express.js \u0628\u0633\u0627\u0632\u06cc\u0645.  Express.js \u0628\u0631 \u0631\u0648\u06cc node.js \u0633\u0627\u062e\u062a\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u06cc\u06a9 \u0645\u0648\u062a\u0648\u0631 \u0642\u062f\u0631\u062a\u0645\u0646\u062f \u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u06a9\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u0646\u0648\u06cc\u0633\u06cc \u0633\u0645\u062a \u0633\u0631\u0648\u0631 \u0631\u0627 \u0627\u0645\u06a9\u0627\u0646 \u067e\u0630\u06cc\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p><strong>\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/strong><br \/>\u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0627\u06a9\u0633\u067e\u0631\u0633 \u0633\u0631\u0648\u0631<br \/>\u0633\u0627\u062e\u062a \u0645\u0648\u0644\u0641\u0647 \u0647\u0627 \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u0628\u0644\u0647 \u0645\u0648\u062b\u0631 \u0628\u0627 \u062e\u0637\u0627\u0647\u0627<br \/>\u0627\u06cc\u062c\u0627\u062f \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646\u06cc<br \/>\u062e\u0637\u0627\u0647\u0627\u06cc \u0646\u0645\u0648\u0646\u0647 \u0648\u0628 \u0633\u0631\u0648\u0631<\/p>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0634\u06cc\u0631\u062c\u0647 \u0628\u0632\u0646\u06cc\u0645 \ud83e\udd85<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" 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href=\"https:\/\/nabfollower.com\/blog\/expressjs-server-error-handling-explained-2e4d\/#%D8%B1%D8%A7%D9%87_%D8%A7%D9%86%D8%AF%D8%A7%D8%B2%DB%8C_%D8%A7%DA%A9%D8%B3%D9%BE%D8%B1%D8%B3_%D8%B3%D8%B1%D9%88%D8%B1\" >\u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0627\u06a9\u0633\u067e\u0631\u0633 \u0633\u0631\u0648\u0631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/expressjs-server-error-handling-explained-2e4d\/#%D8%B3%D8%A7%D8%AE%D8%AA_%D9%85%D9%88%D9%84%D9%81%D9%87_%D9%87%D8%A7_%D8%A8%D8%B1%D8%A7%DB%8C_%D9%85%D9%82%D8%A7%D8%A8%D9%84%D9%87_%D9%85%D9%88%D8%AB%D8%B1_%D8%A8%D8%A7_%D8%AE%D8%B7%D8%A7%D9%87%D8%A7\" >\u0633\u0627\u062e\u062a \u0645\u0648\u0644\u0641\u0647 \u0647\u0627 \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u0628\u0644\u0647 \u0645\u0648\u062b\u0631 \u0628\u0627 \u062e\u0637\u0627\u0647\u0627<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/expressjs-server-error-handling-explained-2e4d\/#%D8%A7%DB%8C%D8%AC%D8%A7%D8%AF_%D9%86%D9%82%D8%B7%D9%87_%D9%BE%D8%A7%DB%8C%D8%A7%D9%86%DB%8C\" >\u0627\u06cc\u062c\u0627\u062f \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/expressjs-server-error-handling-explained-2e4d\/#%D8%AE%D8%B7%D8%A7%D9%87%D8%A7%DB%8C_%D9%86%D9%85%D9%88%D9%86%D9%87_%D9%88%D8%A8_%D8%B3%D8%B1%D9%88%D8%B1\" >\u062e\u0637\u0627\u0647\u0627\u06cc \u0646\u0645\u0648\u0646\u0647 \u0648\u0628 \u0633\u0631\u0648\u0631<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/expressjs-server-error-handling-explained-2e4d\/#%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-6\" href=\"https:\/\/nabfollower.com\/blog\/expressjs-server-error-handling-explained-2e4d\/#%D9%85%D9%86%D8%A7%D8%A8%D8%B9\" >\u0645\u0646\u0627\u0628\u0639<\/a><\/li><\/ul><\/nav><\/div>\n<h2><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%A7%DA%A9%D8%B3%D9%BE%D8%B1%D8%B3_%D8%B3%D8%B1%D9%88%D8%B1\"><\/span>\n<p>  \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0627\u06a9\u0633\u067e\u0631\u0633 \u0633\u0631\u0648\u0631<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u0627\u06cc\u062c\u0627\u062f \u067e\u0631\u0648\u0698\u0647<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>mkdir error-handling\ncd error-handling\nnpm init\nnpm i express nodemon\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<ul>\n<li>\u0627\u0632 mkdir \u0628\u0631\u0627\u06cc \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u067e\u0648\u0634\u0647 \u062f\u0631 \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc \u0631\u06cc\u0634\u0647 \u0648 \u0627\u0646\u062a\u0642\u0627\u0644 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f <code>(cd)<\/code> \u0628\u0647 \u067e\u0648\u0634\u0647 \u0627\u06cc \u06a9\u0647 \u0627\u06cc\u062c\u0627\u062f \u0634\u062f\u0647 \u0627\u0633\u062a.<\/li>\n<li>\u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 <code>package.json<\/code> \u06a9\u0647 \u062a\u0645\u0627\u0645 \u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u0647\u0627\u06cc\u06cc \u0631\u0627 \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u062f \u0634\u062f\u060c \u062b\u0628\u062a \u062e\u0648\u0627\u0647\u062f \u06a9\u0631\u062f.<\/li>\n<li>\u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u0647\u0627\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0646\u0635\u0628 \u06a9\u0646\u06cc\u062f.<\/li>\n<li>\n<code>nodemon<\/code>  \u0628\u0631\u0627\u06cc \u06af\u0648\u0634 \u062f\u0627\u062f\u0646 \u0628\u0647 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u062f\u0631 \u0641\u0627\u06cc\u0644 \u0645\u0646\u0628\u0639 \u0648 \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0645\u062c\u062f\u062f \u0633\u0631\u0648\u0631<\/li>\n<\/ul>\n<p><strong>\u062f\u0631 \u062d\u0627\u0644 \u0627\u062c\u0631\u0627 \u0633\u0631\u0648\u0631<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>(app.js)\nconst app = express();\nconst PORT = 3000;\n\napp.get(\"https:\/\/dev.to\/\", (req, res) =&gt; {\n  res.send('Welcome to error handling in Express :)');\n});\n\napp.listen(PORT, () =&gt; {\n  console.log(`Server is running on port ${PORT}`)\n});\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<ul>\n<li>\u06a9\u0647 \u062f\u0631 <code>app.js<\/code> \u06cc\u06a9 \u0646\u0645\u0648\u0646\u0647 \u0627\u0632 express \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f<\/li>\n<li>\u0633\u0631\u0648\u0631 \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u0648 \u0628\u0647 \u062f\u0631\u062e\u0648\u0627\u0633\u062a HTTP \u0648\u0631\u0648\u062f\u06cc \u062f\u0631 \u067e\u0648\u0631\u062a 3000 \u06af\u0648\u0634 \u062f\u0647\u06cc\u062f.<\/li>\n<li>\u0645\u0633\u06cc\u0631 \u0627\u0635\u0644\u06cc \u06a9\u0647 HTTP \u0631\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u06cc \u06a9\u0646\u062f \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u06a9\u0646\u06cc\u062f <code>GET<\/code> \u062f\u0631\u062e\u0648\u0627\u0633\u062a\n<\/li>\n<\/ul>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>{\n  \"name\": \"error-handling\",\n  \"version\": \"1.0.0\",\n  \"description\": \"\",\n  \"main\": \"app.js\",\n  \"scripts\": {\n    \"start\": \"nodemon app.js\"\n  },\n  \"author\": \"\",\n  \"license\": \"ISC\",\n  \"dependencies\": {\n    \"express\": \"^4.18.2\",\n    \"joi\": \"^17.9.2\",\n    \"nodemon\": \"^2.0.22\"\n  }\n}\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<ul>\n<li>\u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0646 \u06cc\u06a9 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0634\u0631\u0648\u0639 \u062f\u0631 <code>package.json<\/code> \u0641\u0627\u06cc\u0644\u060c \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0634\u0631\u0648\u0639 \u0633\u0631\u0648\u0631 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u0634\u0631\u0648\u0639 \u0645\u06cc \u06a9\u0646\u062f <code>nodemon<\/code>.<\/li>\n<li>\u062f\u0631 \u062d\u0627\u0644 \u062f\u0648\u06cc\u062f\u0646 \u067e\u0633\u062a\u0686\u06cc <code>localhost:3000\/<\/code>\n<\/li>\n<\/ul>\n<p><br \/>\u0647\u0648\u0631\u0627\u06cc \u0645\u0627 \u0633\u0631\u0648\u0631\u0645\u0648\u0646 \u0631\u0648 \u062f\u0627\u0631\u06cc\u0645 \ud83c\udf89 <\/p>\n<hr\/>\n<h2><span class=\"ez-toc-section\" id=\"%D8%B3%D8%A7%D8%AE%D8%AA_%D9%85%D9%88%D9%84%D9%81%D9%87_%D9%87%D8%A7_%D8%A8%D8%B1%D8%A7%DB%8C_%D9%85%D9%82%D8%A7%D8%A8%D9%84%D9%87_%D9%85%D9%88%D8%AB%D8%B1_%D8%A8%D8%A7_%D8%AE%D8%B7%D8%A7%D9%87%D8%A7\"><\/span>\n<p>  \u0633\u0627\u062e\u062a \u0645\u0648\u0644\u0641\u0647 \u0647\u0627 \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u0628\u0644\u0647 \u0645\u0648\u062b\u0631 \u0628\u0627 \u062e\u0637\u0627\u0647\u0627<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627:<\/strong> \u0647\u0631 \u06a9\u062f\u06cc \u06a9\u0647 \u0628\u06cc\u0646 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0648 \u067e\u0627\u0633\u062e \u0627\u062c\u0631\u0627 \u0634\u0648\u062f\u060c \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062e\u0637\u0627 \u062f\u0631 \u0627\u06cc\u0646 \u0633\u0646\u0627\u0631\u06cc\u0648 \u0627\u0646\u062a\u0632\u0627\u0639\u06cc \u0627\u0632 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u062e\u0637\u0627\u0647\u0627\u06cc\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0633\u0631\u0648\u0631 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<ul>\n<li>\u062e\u0637\u0627\u060c \u062f\u0631\u062e\u0648\u0627\u0633\u062a\u060c \u067e\u0627\u0633\u062e \u0648 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0628\u0639\u062f\u06cc \u0631\u0627 \u0645\u06cc \u067e\u0630\u06cc\u0631\u062f.<\/li>\n<li>\u0627\u06af\u0631 \u062e\u0637\u0627\u06cc \u0627\u0631\u0633\u0627\u0644 \u0634\u062f\u0647 \u0646\u0645\u0648\u0646\u0647 \u0627\u06cc \u0627\u0632 AppError \u0633\u0641\u0627\u0631\u0634\u06cc \u0628\u0627\u0634\u062f\u060c <code>handleError<\/code> \u062a\u0627\u0628\u0639 \u0628\u0627 statusCode\u060c errorMessage \u0648 errorStatus \u067e\u0627\u0633\u062e \u0645\u06cc \u062f\u0647\u062f.<\/li>\n<li>\u0627\u06af\u0631 \u062e\u0637\u0627 \u06cc\u06a9 \u0646\u0645\u0648\u0646\u0647 \u0627\u0632 AppError \u0646\u0628\u0627\u0634\u062f\u060c \u067e\u0627\u0633\u062e \u06cc\u06a9 errorCode 500 \u0648 \u06cc\u06a9 \u067e\u06cc\u0627\u0645 \u062e\u0637\u0627\u06cc \u0633\u0631\u0648\u0631 \u062f\u0627\u062e\u0644\u06cc \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f\u060c \u0632\u06cc\u0631\u0627 \u062e\u0637\u0627\u06cc \u0631\u062e \u062f\u0627\u062f\u0647 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0646\u0634\u062f\u0647 \u0627\u0633\u062a.\n<\/li>\n<\/ul>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>(middleware\/handlError.js)\n\nconst AppError = require('..\/utils\/AppError');\n\nconst handleError = (err, req, res, next) =&gt; {\n\n  if (err instanceof AppError) {\n    return res.status(err.statusCode).json({ \n      message: err.message, \n      status: err.status \n    });\n  }\n\n  res.status(500).json({ \n    message: 'Internal Server Error', \n    status: 500 \n  });\n}\n\nmodule.exports = handleError;\n\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u06a9\u0644\u0627\u0633 AppError:<\/strong> \u06cc\u06a9 \u062e\u0637\u0627\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u0628\u0647 \u0646\u0627\u0645 AppError \u06af\u0633\u062a\u0631\u0634 \u0645\u06cc \u062f\u0647\u062f <code>new Error(..)<\/code> \u06a9\u0644\u0627\u0633 \u062e\u0637\u0627\u06cc \u067e\u0627\u06cc\u0647<\/p>\n<ul>\n<li>\u0631\u0627 \u0645\u06cc \u067e\u0630\u06cc\u0631\u062f <code>message<\/code> \u0627\u0633\u062a\u062f\u0644\u0627\u0644 \u0648 <code>errorCode<\/code>. <\/li>\n<li>\u0645\u062a\u062f Super \u0633\u0627\u0632\u0646\u062f\u0647 \u062e\u0637\u0627\u06cc \u067e\u0627\u06cc\u0647 \u0631\u0627 \u0628\u0627 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u067e\u06cc\u0627\u0645 \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f.\n<\/li>\n<\/ul>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>(utils\/AppError.js)\n\nclass AppError extends Error {\n  constructor(statusCode, message) {\n    super(message);\n\n    this.statusCode = statusCode;\n    this.status = `${statusCode}`.startsWith(\"4\") ? \"fail\" : \"error\";\n  }\n}\n\nmodule.exports = AppError;\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>TryCatch Abstraction:<\/strong> \u0627\u0646\u062a\u0632\u0627\u0639\u06cc \u0628\u0647 \u0646\u0627\u0645 tryCatch \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u06cc\u06a9 \u06a9\u0646\u062a\u0631\u0644\u0631 \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u062f\u0631\u06cc\u0627\u0641\u062a \u0645\u06cc \u06a9\u0646\u062f\u060c \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631\u06cc \u0631\u0627 \u0628\u0627 \u0628\u0644\u0648\u06a9 try-and-catch \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f. <\/p>\n<ul>\n<li>\u06a9\u0646\u062a\u0631\u0644\u0631 \u062f\u0631 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc \u0634\u0648\u062f <code>try<\/code> \u0628\u0644\u0627\u06a9 \u06a9\u0646\u06cc\u062f \u0648 \u0627\u06af\u0631 \u062e\u0637\u0627\u06cc\u06cc \u0631\u062e \u062f\u0647\u062f <code>next<\/code> \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u062f\u0631 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc \u0634\u0648\u062f <code>catch<\/code> \u0628\u0627 \u062e\u0637\u0627\u06cc \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0645\u0633\u062f\u0648\u062f \u06a9\u0646\u06cc\u062f.\n<\/li>\n<\/ul>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>exports.tryCatch = (controller) =&gt; async (req, res, next) =&gt; {\n  try {\n    await controller(req, res, next);\n  } catch(err) {\n    next(err);\n  }\n}\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<hr\/>\n<h2><span class=\"ez-toc-section\" id=\"%D8%A7%DB%8C%D8%AC%D8%A7%D8%AF_%D9%86%D9%82%D8%B7%D9%87_%D9%BE%D8%A7%DB%8C%D8%A7%D9%86%DB%8C\"><\/span>\n<p>  \u0627\u06cc\u062c\u0627\u062f \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0642\u0628\u0644 \u0627\u0632 \u0627\u06cc\u0646\u06a9\u0647 \u06cc\u06a9 \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646\u06cc \u0645\u062f\u0644 \u0628\u0633\u0627\u0632\u06cc\u0645 \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0646 \u0646\u062d\u0648\u0647 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u0648\u062b\u0631 \u062e\u0637\u0627\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.  \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u0645 <code>handleError<\/code> \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u0628\u0647 \u0641\u0627\u06cc\u0644 \u0641\u0647\u0631\u0633\u062a \u0633\u0631\u0648\u0631 <code>(app.js)<\/code>.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>const express = require('express');\nconst handleError = require('.\/middleware\/handleError');\n\nconst app = express();\nconst PORT = 3000;\n\napp.get(\"https:\/\/dev.to\/\", (req, res) =&gt; {\n  res.send('Welcome to error handling in Express :)');\n});\n\n\/\/ error handler middleware\napp.use(handleError);\n\napp.listen(PORT, () =&gt; {\n  console.log(`Server is running on port ${PORT}`)\n});\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><code>handleError<\/code>  \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062e\u0637\u0627\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0631 \u0637\u0648\u0644 \u06cc\u06a9 \u0641\u0631\u0622\u06cc\u0646\u062f HTTP \u0631\u062e \u0645\u06cc \u062f\u0647\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<p><strong>\u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u0631\u0648\u062a\u0631 \u0627\u06a9\u0633\u067e\u0631\u0633 \u0646\u0645\u0648\u0646\u0647<\/strong><\/p>\n<ul>\n<li>\u06cc\u06a9 \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646\u06cc \u06a9\u0627\u0631\u0628\u0631 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0622\u0631\u0627\u06cc\u0647 \u0627\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.  \u0627\u06cc\u0646 \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646\u06cc \u0628\u0631\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 \u0686\u0646\u062f\u06cc\u0646 \u062e\u0637\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u06a9\u0647 \u062f\u0631 \u06cc\u06a9 \u0641\u0631\u0622\u06cc\u0646\u062f HTTP \u0642\u0627\u0628\u0644 \u0631\u0633\u06cc\u062f\u06af\u06cc \u0627\u0633\u062a\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u062f \u0634\u062f.\n<\/li>\n<\/ul>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>(routes\/user.route.js)\n\nconst express = require('express');\nconst { tryCatch } = require('..\/utils\/tryCatch');\nconst { getUsers } = require('..\/service\/users.service');\n\nconst router = express.Router();\n\nconst userController = tryCatch(async (req, res, next) =&gt; {\n  const users = await getUsers();\n  res.status(200).json(users);\n});\n\nrouter.get('\/user', userController);\n\nmodule.exports = router;\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<hr\/>\n<h2><span class=\"ez-toc-section\" id=\"%D8%AE%D8%B7%D8%A7%D9%87%D8%A7%DB%8C_%D9%86%D9%85%D9%88%D9%86%D9%87_%D9%88%D8%A8_%D8%B3%D8%B1%D9%88%D8%B1\"><\/span>\n<p>  \u062e\u0637\u0627\u0647\u0627\u06cc \u0646\u0645\u0648\u0646\u0647 \u0648\u0628 \u0633\u0631\u0648\u0631<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u062e\u0637\u0627\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0628\u062f\u060c \u06a9\u0647 \u0627\u063a\u0644\u0628 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 400 \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f:<\/strong> \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0648\u0628 \u0633\u0631\u0648\u0631 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u0633\u0631\u0648\u06cc\u0633 \u06af\u06cc\u0631\u0646\u062f\u0647 \u0648\u0628 \u0631\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u062f\u060c \u062e\u0637\u0627\u06cc 400 \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u0634\u06a9\u0627\u0644 \u0648\u0636\u0639\u06cc\u062a \u067e\u0627\u0633\u062e HTTP \u0627\u0633\u062a \u06a9\u0647 \u0638\u0627\u0647\u0631 \u0645\u06cc \u0634\u0648\u062f.  \u0627\u06cc\u0646 \u0646\u0648\u0639 \u062e\u0637\u0627 \u0627\u062d\u062a\u0645\u0627\u0644\u0627\u064b \u062a\u0648\u0633\u0637 \u0633\u0631\u0648\u06cc\u0633 \u06af\u06cc\u0631\u0646\u062f\u0647 \u0648\u0628 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u0634\u0648\u062f.  \u0686\u0646\u062f\u06cc\u0646 \u0686\u06cc\u0632 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u0646\u062c\u0631 \u0628\u0647 \u062e\u0637\u0627\u06cc 400 \u0634\u0648\u062f.<\/p>\n<ul>\n<li>\u0648\u0642\u062a\u06cc URL \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646\u06cc \u062d\u0627\u0648\u06cc \u06cc\u06a9 \u0627\u0634\u062a\u0628\u0627\u0647 \u0627\u0633\u062a<\/li>\n<li>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0633\u0631\u0648\u06cc\u0633 \u06af\u06cc\u0631\u0646\u062f\u0647 \u0648\u0628 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0646\u0627\u062f\u0631\u0633\u062a \u06cc\u0627 \u0646\u0627\u0642\u0635 \u0628\u0647 \u0648\u0628 \u0633\u0631\u0648\u0631 \u0645\u06cc \u062f\u0647\u062f.<\/li>\n<li>\u06cc\u06a9 \u0645\u0634\u06a9\u0644 \u0645\u0631\u0648\u0631\u06af\u0631 \u06cc\u0627 \u0627\u062a\u0635\u0627\u0644 \u0628\u0647 \u0627\u06cc\u0646\u062a\u0631\u0646\u062a \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631<\/li>\n<\/ul>\n<p><em><strong>\u0646\u0645\u0648\u0646\u0647 \u06a9\u062f<\/strong><\/em><\/p>\n<p>\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u06cc\u06a9 \u062e\u0637\u0627\u06cc \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646\u06cc \u0646\u0627\u0645\u0639\u062a\u0628\u0631 \u0631\u0627 \u062f\u0631 \u0642\u0633\u0645\u062a \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0646\u06cc\u0645 <code>app.js<\/code> \u0641\u0627\u06cc\u0644\u060c \u06a9\u0647 \u0646\u0645\u0648\u0646\u0647 \u0627\u06cc \u0627\u0632 \u062e\u0637\u0627\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0628\u062f \u0627\u0633\u062a.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>(app.js)\napp.get('*', (req, res) =&gt; {\n  throw new AppError(400, 'Invalid endpoint');\n});\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 \u0633\u062a\u0627\u0631\u0647 \u062f\u0631 \u0631\u0648\u062a\u0631 \u0627\u06a9\u0633\u067e\u0631\u0633 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0628\u0642\u062a \u0628\u0627 \u0647\u0631 \u062a\u0639\u062f\u0627\u062f \u06a9\u0627\u0631\u0627\u06a9\u062a\u0631 \u062f\u0631 \u06cc\u06a9 \u0645\u0633\u06cc\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.  \u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644\u060c \u0645\u0633\u06cc\u0631 \u0633\u062a\u0627\u0631\u0647 \u0632\u0645\u0627\u0646\u06cc \u0641\u0639\u0627\u0644 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 URL \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0628\u0627 \u0647\u06cc\u0686 \u06cc\u06a9 \u0627\u0632 \u0645\u0633\u06cc\u0631\u0647\u0627\u06cc \u0645\u0648\u062c\u0648\u062f \u0645\u0637\u0627\u0628\u0642\u062a \u0646\u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f.  \u062f\u0631 \u0622\u0646 \u0646\u0645\u0648\u0646\u0647\u060c \u0648\u0628 \u0633\u0631\u0648\u0631 \u06cc\u06a9 \u06a9\u062f \u062e\u0637\u0627\u06cc 400 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.<\/p>\n<p><strong>\u062e\u0637\u0627\u06cc \u063a\u06cc\u0631\u0645\u062c\u0627\u0632 \u06a9\u0647 \u0627\u063a\u0644\u0628 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 401 \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f:<\/strong> \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u06af\u06cc\u0631\u0646\u062f\u0647 \u0648\u0628 \u0628\u0627 \u06cc\u06a9 \u0648\u0628 \u0633\u0631\u0648\u0631 \u0628\u062f\u0648\u0646 \u062d\u0642\u0648\u0642 \u0644\u0627\u0632\u0645 \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0631\u0642\u0631\u0627\u0631 \u0645\u06cc \u06a9\u0646\u062f\u060c \u0648\u0628 \u0633\u0631\u0648\u0631 \u0628\u0627 \u062e\u0637\u0627\u06cc 401 \u067e\u0627\u0633\u062e \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0627\u0631\u0628\u0631 \u0645\u062c\u0627\u0632 \u0628\u0647 \u0627\u0646\u062c\u0627\u0645 \u0641\u0639\u0627\u0644\u06cc\u062a \u0645\u0648\u0631\u062f \u0646\u0638\u0631 \u0646\u06cc\u0633\u062a.<\/p>\n<p><em><strong>\u0646\u0645\u0648\u0646\u0647 \u06a9\u062f<\/strong><\/em><\/p>\n<p>\u0628\u0631\u0627\u06cc \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0646 \u062e\u0637\u0627\u06cc 401\u060c \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u06cc\u062f \u06cc\u06a9 \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u0627\u062d\u0631\u0627\u0632 \u0647\u0648\u06cc\u062a \u06a9\u0627\u0631\u0628\u0631 \u0628\u0633\u0627\u0632\u06cc\u0645 \u06a9\u0647 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u06a9\u0646\u062f \u0622\u06cc\u0627 \u06a9\u0627\u0631\u0628\u0631 \u0642\u0628\u0644 \u0627\u0632 \u062a\u06a9\u0645\u06cc\u0644 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0627\u0631\u0628\u0631 \u0645\u062c\u0627\u0632 \u0627\u0633\u062a \u06cc\u0627 \u062e\u06cc\u0631.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>const AppError = require('..\/utils\/AppError');\n\nconst authenticated = (req, res, next) =&gt; {\n  const isAuthenticated = req.headers.authorization;\n\n  if (!isAuthenticated) {\n    throw new AppError(401, 'unauthorized request');\n  }\n\n  next();\n}\n\nmodule.exports = authenticated;\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0633\u067e\u0633 \u0645\u06cc\u0627\u0646 \u0627\u0641\u0632\u0627\u0631 \u0645\u062c\u0627\u0632 \u062f\u0631 \u0645\u0633\u06cc\u0631 \u06a9\u0627\u0631\u0628\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u062f \u0634\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>(routes\/user.route.js)\n\nrouter.get('\/user', authenticated, userController);\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 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src=\"https:\/\/nabfollower.com\/blog\/wp-content\/uploads\/2023\/05\/1685124488_569_\u0631\u0633\u06cc\u062f\u06af\u06cc-\u0628\u0647-\u062e\u0637\u0627\u06cc-\u0633\u0631\u0648\u0631-Expressjs-\u062a\u0648\u0636\u06cc\u062d-\u062f\u0627\u062f\u0647-\u0634\u062f.png\" alt=\"\u067e\u0633\u062a\u0686\u06cc\" loading=\"lazy\" width=\"800\" height=\"107\" title=\"\"><\/p>\n<p><strong>\u062e\u0637\u0627\u06cc Not Found \u06a9\u0647 \u0627\u063a\u0644\u0628 \u0628\u0627 \u0646\u0627\u0645 404 \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f:<\/strong> \u0648\u0636\u0639\u06cc\u062a \u067e\u0627\u0633\u062e HTTP 404 \u0632\u0645\u0627\u0646\u06cc \u0631\u062e \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u0633\u0631\u0648\u06cc\u0633 \u06af\u06cc\u0631\u0646\u062f\u0647 \u0648\u0628 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627 \u0648\u0628 \u0633\u0631\u0648\u0631 \u062a\u0639\u0627\u0645\u0644 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f 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\u0628\u0648\u062f\u0647 \u0628\u0627\u0634\u062f XD.<\/p>\n<p><em><strong>\u0646\u0645\u0648\u0646\u0647 \u06a9\u062f<\/strong><\/em><\/p>\n<p>\u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631 \u0647\u06cc\u0686 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0631\u0648\u06cc \u0633\u0631\u0648\u0631 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f.  \u0648\u0642\u062a\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0645\u06cc \u06a9\u0646\u06cc\u0645\u060c \u0633\u0631\u0648\u0631 \u062e\u0637\u0627\u06cc 404 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f.  \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631 \u0631\u0648\u06cc \u06a9\u0646\u062a\u0631\u0644\u0631 \u06a9\u0627\u0631\u0628\u0631 \u0627\u0646\u062c\u0627\u0645 \u0634\u0648\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight plaintext\"><code>const userController = tryCatch(async (req, res, next) =&gt; {\n  const users = undefined;\n  if (!users) {\n    throw new AppError(404, 'No users found')\n  }\n  res.status(200).json(users);\n});\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0631\u0627 \u0627\u062c\u0631\u0627 \u06a9\u0646\u06cc\u062f <code>\/user<\/code> \u0646\u0642\u0637\u0647 \u067e\u0627\u06cc\u0627\u0646 \u062f\u0631 \u067e\u0633\u062a\u0686\u06cc \u0634\u0645\u0627<\/p>\n<p><strong>\u062e\u0637\u0627\u06cc \u0633\u0631\u0648\u0631 \u062f\u0627\u062e\u0644\u06cc \u06a9\u0647 \u0627\u063a\u0644\u0628 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 500 \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f:<\/strong> \u0648\u0636\u0639\u06cc\u062a \u067e\u0627\u0633\u062e 500 \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u0645\u0634\u06a9\u0644 \u0648\u0628 \u0633\u0631\u0648\u0631 \u0627\u0633\u062a \u0648 \u0631\u0628\u0637\u06cc \u0628\u0647 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\u0645\u0646 \u0647\u0645\u0631\u0627\u0647\u06cc \u06a9\u0631\u062f\u06cc<\/p>\n<hr\/>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D9%86%D8%A7%D8%A8%D8%B9\"><\/span>\n<p>  \u0645\u0646\u0627\u0628\u0639<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li>\n<p>\u0645\u0633\u062a\u0646\u062f\u0627\u062a Express.js<\/p>\n<\/li>\n<li>\n<p>Github Repo<\/p>\n<\/li>\n<\/ol><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u0648\u062b\u0631 \u062e\u0637\u0627 \u062f\u0631 \u0648\u0628 \u0633\u0631\u0648\u0631 \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u062c\u0632\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u062f\u0631 \u062a\u0648\u0633\u0639\u0647 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0646\u0639\u0637\u0627\u0641 \u067e\u0630\u06cc\u0631 \u0627\u0633\u062a\u060c \u0632\u06cc\u0631\u0627 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u06cc\u06a9 \u062e\u0637\u0627 \u0628\u0647 \u0637\u0648\u0631 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