{"id":102441,"date":"2025-03-21T01:13:42","date_gmt":"2025-03-20T21:43:42","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/angular-rxjs-%d8%b1%d8%af%db%8c%d8%a7%d8%a8%db%8c-%d9%88%d8%b6%d8%b9%db%8c%d8%aa-crud-%d8%b1%db%8c%d8%b2-%d8%af%d8%a7%d9%86%d9%87-%d8%af%d8%b1-%d9%84%db%8c%d8%b3%d8%aa-%d8%af%d8%a7%d8%af%d9%87\/"},"modified":"2025-03-21T01:13:42","modified_gmt":"2025-03-20T21:43:42","slug":"angular-rxjs-%d8%b1%d8%af%db%8c%d8%a7%d8%a8%db%8c-%d9%88%d8%b6%d8%b9%db%8c%d8%aa-crud-%d8%b1%db%8c%d8%b2-%d8%af%d8%a7%d9%86%d9%87-%d8%af%d8%b1-%d9%84%db%8c%d8%b3%d8%aa-%d8%af%d8%a7%d8%af%d9%87","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/angular-rxjs-%d8%b1%d8%af%db%8c%d8%a7%d8%a8%db%8c-%d9%88%d8%b6%d8%b9%db%8c%d8%aa-crud-%d8%b1%db%8c%d8%b2-%d8%af%d8%a7%d9%86%d9%87-%d8%af%d8%b1-%d9%84%db%8c%d8%b3%d8%aa-%d8%af%d8%a7%d8%af%d9%87\/","title":{"rendered":"Angular &#038; RXJS: \u0631\u062f\u06cc\u0627\u0628\u06cc \u0648\u0636\u0639\u06cc\u062a CRUD \u0631\u06cc\u0632 \u062f\u0627\u0646\u0647 \u062f\u0631 \u0644\u06cc\u0633\u062a \u062f\u0627\u062f\u0647 \u0647\u0627 (\u0628\u0647 \u0644\u0637\u0641 Groupby \ud83d\ude4f)"},"content":{"rendered":"<div data-article-id=\"2344800\" id=\"article-body\">\n<p>\u0645\u0642\u0627\u0644\u0647 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646 \u062f\u0631\u062e\u0648\u0627\u0633\u062a API \u0631\u0627 \u0628\u0631\u0627\u06cc \u0647\u0631 \u06cc\u06a9 \u0627\u0632 \u0644\u06cc\u0633\u062a \u0647\u0627\u06cc \u06cc\u06a9 \u0644\u06cc\u0633\u062a \u0627\u0639\u0645\u0627\u0644 \u06a9\u0631\u062f \u060c \u0648\u0636\u0639\u06cc\u062a \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0622\u0646 \u0631\u0627 \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0648 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0647\u0627 \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u0645\u0648\u0627\u0632\u06cc \u0627\u062c\u0631\u0627 \u06a9\u0646\u062f.<\/p>\n<p>\u0645\u062b\u0627\u0644\u06cc \u067e\u06cc\u062f\u0627 \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0631 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u062e\u0648\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyqaf3kpviu0uirl2zp5b.png\" alt=\"\u0644\u06cc\u0633\u062a\u06cc \u0627\u0632 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0628\u0627 \u0645\u0648\u0627\u0631\u062f\u06cc \u06a9\u0647 \u0627\u0635\u0644\u0627\u062d \u0634\u062f\u0647 \u0627\u0646\u062f \u0648 \u062f\u06cc\u06af\u0631\u0627\u0646 \u0628\u0647 \u0644\u0637\u0641 Groupby RXJS \u062d\u0630\u0641 \u0634\u062f\u0647 \u0627\u0646\u062f\" loading=\"lazy\" width=\"800\" height=\"462\" title=\"\"><\/p>\n<p>\u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u060c \u0645\u0646 \u06af\u0631\u0648\u0647 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0631\u0627 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0645 \u06a9\u0647 \u0628\u0627 \u06cc\u06a9 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0633\u0641\u0627\u0631\u0634\u06cc \u062f\u06cc\u06af\u0631 \u06a9\u0647 \u0627\u063a\u0644\u0628 \u0627\u0632 &#8220;\u0628\u06cc\u0627\u0646 \u0634\u062f\u0647&#8221; \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062e\u0648\u0627\u0647\u06cc\u0645 \u06a9\u0631\u062f.<\/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=\"\u062a\u063a\u06cc\u06cc\u0631 \u0648\u0636\u0639\u06cc\u062a \u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628\"><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\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/angular-rxjs-%d8%b1%d8%af%db%8c%d8%a7%d8%a8%db%8c-%d9%88%d8%b6%d8%b9%db%8c%d8%aa-crud-%d8%b1%db%8c%d8%b2-%d8%af%d8%a7%d9%86%d9%87-%d8%af%d8%b1-%d9%84%db%8c%d8%b3%d8%aa-%d8%af%d8%a7%d8%af%d9%87\/#%D8%A8%D8%B1%D8%A7%DB%8C_%D9%BE%DB%8C%D8%AF%D8%A7_%DA%A9%D8%B1%D8%AF%D9%86_%D9%88%D8%B6%D8%B9%DB%8C%D8%AA_%D8%A8%D8%A7%D8%B1%DA%AF%DB%8C%D8%B1%DB%8C_%DB%8C%DA%A9_%D8%AF%D8%B1%D8%AE%D9%88%D8%A7%D8%B3%D8%AA_%D8%8C_%D8%A7%D9%BE%D8%B1%D8%A7%D8%AA%D9%88%D8%B1_%E2%80%9C%D8%A7%D8%B9%D9%84%D8%A7%D9%85_%D8%B4%D8%AF%D9%87%E2%80%9D_%D8%B1%D8%A7_%D8%A7%DB%8C%D8%AC%D8%A7%D8%AF_%DA%A9%D9%86%DB%8C%D8%AF\" >\u0628\u0631\u0627\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u0648\u0636\u0639\u06cc\u062a \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u06cc\u06a9 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u060c \u0627\u067e\u0631\u0627\u062a\u0648\u0631 &#8220;\u0627\u0639\u0644\u0627\u0645 \u0634\u062f\u0647&#8221; \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f<\/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\/angular-rxjs-%d8%b1%d8%af%db%8c%d8%a7%d8%a8%db%8c-%d9%88%d8%b6%d8%b9%db%8c%d8%aa-crud-%d8%b1%db%8c%d8%b2-%d8%af%d8%a7%d9%86%d9%87-%d8%af%d8%b1-%d9%84%db%8c%d8%b3%d8%aa-%d8%af%d8%a7%d8%af%d9%87\/#%D9%BE%D8%AA%D8%A7%D9%86%D8%B3%DB%8C%D9%84_%D8%AA%D8%A7%DB%8C%D8%AA%D8%A7%D9%86%DB%8C%DA%A9_%DA%AF%D8%B1%D9%88%D9%87_%D8%A7%D9%BE%D8%B1%D8%A7%D8%AA%D9%88%D8%B1_%D8%B1%D8%A7_%D8%A8%D8%A7%D8%B2_%DA%A9%D9%86%DB%8C%D8%AF\" >\u067e\u062a\u0627\u0646\u0633\u06cc\u0644 \u062a\u0627\u06cc\u062a\u0627\u0646\u06cc\u06a9 \u06af\u0631\u0648\u0647 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f<\/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\/angular-rxjs-%d8%b1%d8%af%db%8c%d8%a7%d8%a8%db%8c-%d9%88%d8%b6%d8%b9%db%8c%d8%aa-crud-%d8%b1%db%8c%d8%b2-%d8%af%d8%a7%d9%86%d9%87-%d8%af%d8%b1-%d9%84%db%8c%d8%b3%d8%aa-%d8%af%d8%a7%d8%af%d9%87\/#%D9%84%DB%8C%D8%B3%D8%AA%DB%8C_%D8%A7%D8%B2_%D9%85%D9%88%D8%AC%D9%88%D8%AF%D8%A7%D8%AA_%D8%A8%D8%A7_%D8%A7%D8%B3%D8%A7%D8%B3%D9%86%D8%A7%D9%85%D9%87_%D8%A8%D8%A7%D8%B1%DA%AF%DB%8C%D8%B1%DB%8C_%D9%88%D8%A7%DA%A9%D9%86%D8%B4%DB%8C_%D8%B1%D8%A7_%D8%AF%D8%B1_%D9%85%D9%88%D8%B1%D8%AF_%D8%B2%D8%A7%D9%88%DB%8C%D9%87_%D8%A7%DB%8C_%D9%86%D8%B4%D8%A7%D9%86_%D8%AF%D9%87%DB%8C%D8%AF\" >\u0644\u06cc\u0633\u062a\u06cc \u0627\u0632 \u0645\u0648\u062c\u0648\u062f\u0627\u062a \u0628\u0627 \u0627\u0633\u0627\u0633\u0646\u0627\u0645\u0647 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0648\u0627\u06a9\u0646\u0634\u06cc \u0631\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f \u0632\u0627\u0648\u06cc\u0647 \u0627\u06cc \u0646\u0634\u0627\u0646 \u062f\u0647\u06cc\u062f<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D8%A8%D8%B1%D8%A7%DB%8C_%D9%BE%DB%8C%D8%AF%D8%A7_%DA%A9%D8%B1%D8%AF%D9%86_%D9%88%D8%B6%D8%B9%DB%8C%D8%AA_%D8%A8%D8%A7%D8%B1%DA%AF%DB%8C%D8%B1%DB%8C_%DB%8C%DA%A9_%D8%AF%D8%B1%D8%AE%D9%88%D8%A7%D8%B3%D8%AA_%D8%8C_%D8%A7%D9%BE%D8%B1%D8%A7%D8%AA%D9%88%D8%B1_%E2%80%9C%D8%A7%D8%B9%D9%84%D8%A7%D9%85_%D8%B4%D8%AF%D9%87%E2%80%9D_%D8%B1%D8%A7_%D8%A7%DB%8C%D8%AC%D8%A7%D8%AF_%DA%A9%D9%86%DB%8C%D8%AF\"><\/span>\n<p>  \u0628\u0631\u0627\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u0646 \u0648\u0636\u0639\u06cc\u062a \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u06cc\u06a9 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u060c \u0627\u067e\u0631\u0627\u062a\u0648\u0631 &#8220;\u0627\u0639\u0644\u0627\u0645 \u0634\u062f\u0647&#8221; \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u06cc\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>StatessTream \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u0648\u0636\u0639\u06cc\u062a \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u06cc\u06a9 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0646\u0627\u0647\u0645\u0632\u0645\u0627\u0646 \u0631\u0627 \u0628\u062f\u0627\u0646\u06cc\u062f \u060c \u0645\u0646 \u0628\u06cc\u0634\u062a\u0631 \u0627\u0648\u0642\u0627\u062a \u062f\u0631 \u0637\u0648\u0644 \u062a\u0645\u0627\u0633 API \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u0645.<\/p>\n<p>\u0627\u06cc\u0646 \u0639\u0645\u0644 \u0634\u0628\u06cc\u0647 \u0628\u0647 httpressource \u0627\u0632 \u0632\u0627\u0648\u06cc\u0647 \u0627\u06cc \u0627\u0633\u062a \u060c \u0628\u0647 \u062c\u0632 \u0627\u06cc\u0646 \u06a9\u0647 \u0645\u0627 \u062f\u0631 \u0632\u0645\u06cc\u0646\u0647 \u0645\u0634\u0627\u0647\u062f\u0627\u062a \u0628\u0627\u0642\u06cc \u0645\u06cc \u0645\u0627\u0646\u0646\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"nx\">updateItem$<\/span>\n  <span class=\"p\">.<\/span><span class=\"nf\">pipe<\/span><span class=\"p\">(<\/span>\n    <span class=\"nf\">switchMap<\/span><span class=\"p\">((<\/span><span class=\"nx\">updateItem<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"c1\">\/\/ everytime, updateItem$ emit a new value, it cancels the existing api call, and create a new API<\/span>\n      <span class=\"nf\">statedStream<\/span><span class=\"p\">(<\/span><span class=\"nx\">updateApiCall<\/span><span class=\"nf\">$<\/span><span class=\"p\">(<\/span><span class=\"nx\">updateItem<\/span><span class=\"p\">),<\/span> <span class=\"nx\">updateItem<\/span><span class=\"p\">)<\/span>\n    <span class=\"p\">)<\/span>\n  <span class=\"p\">)<\/span>\n  <span class=\"p\">.<\/span><span class=\"nf\">subscribe<\/span><span class=\"p\">((<\/span><span class=\"nx\">data<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">data<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">data<\/span><span class=\"p\">));<\/span>\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>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\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>\u0628\u0647 \u062c\u0627\u06cc \u0627\u0646\u062a\u0638\u0627\u0631 \u0628\u0631\u0627\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u0648\u0627\u062d\u062f \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u067e\u0627\u06cc\u0627\u0646 \u062a\u0645\u0627\u0633 API \u060c \u0627\u0638\u0647\u0627\u0631 \u062f\u0627\u0634\u062a \u06a9\u0647 \u0628\u0627 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0646 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u060c \u0645\u0642\u062f\u0627\u0631 \u0627\u0648\u0644 \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f (\u0628\u0627\u0631\u06af\u06cc\u0631\u06cc: \u062f\u0631\u0633\u062a \u0627\u0633\u062a).<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fevr8tq9iwz5g2hnzz12k.png\" alt=\"\u06af\u0632\u0627\u0631\u0634 \u0647\u0627\u06cc \u067e\u0627\u0633\u062e RXJS RXJS\" loading=\"lazy\" width=\"540\" height=\"308\" title=\"\"><\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0628\u062e\u0634\u06cc \u0627\u0632 \u06a9\u062f StatStream \u0622\u0648\u0631\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"k\">export<\/span> <span class=\"kd\">function<\/span> <span class=\"nf\">statedStream<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span>\n  <span class=\"nx\">toCall<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Observable<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">,<\/span>\n  <span class=\"nx\">initialValue<\/span><span class=\"p\">:<\/span> <span class=\"nx\">T<\/span>\n<span class=\"p\">):<\/span> <span class=\"nx\">Observable<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">SatedStreamResult<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"k\">return<\/span> <span class=\"nx\">toCall<\/span><span class=\"p\">.<\/span><span class=\"nf\">pipe<\/span><span class=\"p\">(<\/span>\n    <span class=\"nf\">map<\/span><span class=\"p\">(<\/span>\n      <span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\n        <span class=\"p\">({<\/span>\n          <span class=\"na\">isLoading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span><span class=\"p\">,<\/span>\n          <span class=\"na\">isLoaded<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\n          <span class=\"na\">hasError<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span><span class=\"p\">,<\/span>\n          <span class=\"na\">error<\/span><span class=\"p\">:<\/span> <span class=\"kc\">undefined<\/span><span class=\"p\">,<\/span>\n          <span class=\"nx\">result<\/span><span class=\"p\">,<\/span>\n        <span class=\"p\">}<\/span> <span class=\"nx\">satisfies<\/span> <span class=\"nx\">SatedStreamResult<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span>\n    <span class=\"p\">),<\/span>\n    <span class=\"nf\">startWith<\/span><span class=\"p\">({<\/span>\n      <span class=\"na\">isLoading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\n      <span class=\"na\">isLoaded<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span><span class=\"p\">,<\/span>\n      <span class=\"na\">hasError<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span><span class=\"p\">,<\/span>\n      <span class=\"na\">error<\/span><span class=\"p\">:<\/span> <span class=\"kc\">undefined<\/span><span class=\"p\">,<\/span>\n      <span class=\"na\">result<\/span><span class=\"p\">:<\/span> <span class=\"nx\">initialValue<\/span><span class=\"p\">,<\/span>\n    <span class=\"p\">}),<\/span>\n    <span class=\"nf\">catchError<\/span><span class=\"p\">((<\/span><span class=\"nx\">error<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\n      <span class=\"k\">of<\/span><span class=\"p\">({<\/span>\n        <span class=\"na\">isLoading<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span><span class=\"p\">,<\/span>\n        <span class=\"na\">isLoaded<\/span><span class=\"p\">:<\/span> <span class=\"kc\">false<\/span><span class=\"p\">,<\/span>\n        <span class=\"na\">hasError<\/span><span class=\"p\">:<\/span> <span class=\"kc\">true<\/span><span class=\"p\">,<\/span>\n        <span class=\"nx\">error<\/span><span class=\"p\">,<\/span>\n        <span class=\"na\">result<\/span><span class=\"p\">:<\/span> <span class=\"nx\">initialValue<\/span><span class=\"p\">,<\/span>\n      <span class=\"p\">})<\/span>\n    <span class=\"p\">)<\/span>\n  <span class=\"p\">);<\/span>\n<span class=\"p\">}<\/span>\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>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\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>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0627\u06af\u0631 \u0639\u0627\u062f\u062a \u0646\u062f\u0627\u0631\u06cc\u062f \u0628\u0627 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0642\u0627\u0628\u0644 \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0627\u0631 \u06a9\u0646\u06cc\u062f \u060c \u0627\u06af\u0631 \u062a\u0645\u0627\u0633 API \u062e\u0637\u0627\u06cc\u06cc \u0631\u0627 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u062f \u060c \u062c\u0631\u06cc\u0627\u0646 \u0634\u0645\u0627 \u0645\u062a\u0648\u0642\u0641 \u0645\u06cc \u0634\u0648\u062f \u0648 \u062f\u06cc\u06af\u0631 \u0628\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u0645\u0646\u0628\u0639 \u0628\u0639\u062f\u06cc \u06af\u0648\u0634 \u0646\u0645\u06cc \u062f\u0647\u06cc\u062f (\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc $).<\/p>\n<p>\u0628\u0647 \u0644\u0637\u0641 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u06cc\u0627\u0646 \u0634\u062f\u0647 \u060c \u062e\u0637\u0627\u0647\u0627 &#8220;\u06a9\u0634\u062a\u06cc&#8221; \u0647\u0633\u062a\u0646\u062f \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0628\u0647\u0628\u0648\u062f \u0645\u06cc \u06cc\u0627\u0628\u0646\u062f. \u0627\u06cc\u0646 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u062f\u0631 \u0637\u06cc \u06cc\u06a9 \u062e\u0637\u0627\u06cc API \u0628\u0634\u06a9\u0646\u06cc\u062f \u0648 \u0628\u0647 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0627\u062f\u0627\u0645\u0647 \u062f\u0647\u06cc\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0644\u06cc\u0646\u06a9 stackblitz \u0628\u0631\u0627\u06cc \u062f\u06cc\u062f\u0646 \u0627\u06cc\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0627 \u062c\u0632\u0626\u06cc\u0627\u062a \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D9%BE%D8%AA%D8%A7%D9%86%D8%B3%DB%8C%D9%84_%D8%AA%D8%A7%DB%8C%D8%AA%D8%A7%D9%86%DB%8C%DA%A9_%DA%AF%D8%B1%D9%88%D9%87_%D8%A7%D9%BE%D8%B1%D8%A7%D8%AA%D9%88%D8%B1_%D8%B1%D8%A7_%D8%A8%D8%A7%D8%B2_%DA%A9%D9%86%DB%8C%D8%AF\"><\/span>\n<p>  \u067e\u062a\u0627\u0646\u0633\u06cc\u0644 \u062a\u0627\u06cc\u062a\u0627\u0646\u06cc\u06a9 \u06af\u0631\u0648\u0647 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 \u0631\u0627 \u0628\u0627\u0632 \u06a9\u0646\u06cc\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0645\u0646 \u0646\u0645\u06cc \u062f\u0627\u0646\u0645 \u06a9\u0647 \u0622\u06cc\u0627 \u0634\u0645\u0627 \u0642\u0628\u0644\u0627\u064b \u0627\u0632 \u06af\u0631\u0648\u0647 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 RXJS \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0647 \u0627\u06cc\u062f\u061f \u0634\u062e\u0635\u0627\u064b \u060c \u0648\u0642\u062a\u06cc \u0627\u0648\u0644\u06cc\u0646 \u0628\u0627\u0631 \u062f\u06a9\u062a\u0631 \u0631\u0627 \u062e\u0648\u0627\u0646\u062f\u0645 \u060c \u0646\u0641\u0647\u0645\u06cc\u062f\u0645. \u062f\u0647\u0645\u06cc\u0646 \u0628\u0627\u0631 \u06cc\u0627 &#8230; \u0627\u0645\u0627 \u0628\u0647 \u0644\u0637\u0641 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 \u060c \u0641\u0647\u0645\u06cc\u062f\u0645. \u0627\u0632 \u0622\u0646 \u0632\u0645\u0627\u0646 \u060c \u0645\u0646 \u0645\u06cc \u0641\u0647\u0645\u0645<\/p>\n<p>\u0627\u06af\u0631 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f Doc \u0631\u0627 \u0628\u062e\u0648\u0627\u0646\u06cc\u062f \u060c \u062f\u0631\u06cc\u063a \u0646\u06a9\u0646\u06cc\u062f \u060c \u0646\u0645\u0648\u0646\u0647 \u0627\u06cc \u0627\u0632 StackBlitz \u0646\u06cc\u0632 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u0635\u0644 \u060c \u0645\u0627 \u0627\u0632 \u0645\u062b\u0627\u0644 \u0628\u06cc\u0627\u0646 \u0634\u062f\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u0648 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 Groupby \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"nx\">updateItem$<\/span>\n  <span class=\"p\">.<\/span><span class=\"nf\">pipe<\/span><span class=\"p\">(<\/span>\n    <span class=\"nf\">groupBy<\/span><span class=\"p\">((<\/span><span class=\"nx\">updateItem<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">updateItem<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">),<\/span> <span class=\"c1\">\/\/ create a group for each unique id<\/span>\n    <span class=\"nf\">mergeMap<\/span><span class=\"p\">((<\/span><span class=\"nx\">group$<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n      <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">group$<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">group$<\/span><span class=\"p\">.<\/span><span class=\"nx\">key<\/span><span class=\"p\">);<\/span>\n      <span class=\"k\">return<\/span> <span class=\"nx\">group$<\/span><span class=\"p\">.<\/span><span class=\"nf\">pipe<\/span><span class=\"p\">(<\/span>\n        <span class=\"nf\">switchMap<\/span><span class=\"p\">((<\/span><span class=\"nx\">updateItem<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span>\n          <span class=\"nf\">statedStream<\/span><span class=\"p\">(<\/span><span class=\"nx\">updateApiCall<\/span><span class=\"nf\">$<\/span><span class=\"p\">(<\/span><span class=\"nx\">updateItem<\/span><span class=\"p\">),<\/span> <span class=\"nx\">updateItem<\/span><span class=\"p\">)<\/span>\n        <span class=\"p\">)<\/span>\n      <span class=\"p\">);<\/span>\n    <span class=\"p\">})<\/span>\n  <span class=\"p\">)<\/span>\n  <span class=\"p\">.<\/span><span class=\"nf\">subscribe<\/span><span class=\"p\">((<\/span><span class=\"nx\">data<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">Received:<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"nx\">data<\/span><span class=\"p\">));<\/span>\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>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\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 \u060c \u0645\u0627 \u0686\u0646\u062f \u0628\u0647 \u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc \u0631\u0627 \u0645\u0646\u062a\u0634\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u0648 \u062f\u0631 \u0622\u0646\u062c\u0627 \u062e\u0648\u0627\u0647\u06cc\u062f \u0641\u0647\u0645\u06cc\u062f. 2 \u0628\u0647 \u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc \u0628\u0647 \u0635\u0648\u0631\u062a \u0645\u062a\u0648\u0627\u0644\u06cc \u0635\u0627\u062f\u0631 \u0645\u06cc \u0634\u0648\u062f \u060c \u0633\u067e\u0633 \u06cc\u06a9 \u0628\u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc \u0633\u0648\u0645 \u0628\u0639\u062f \u0627\u0632 5s.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight javascript\"><code><span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">emit updateItem first time<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">id: 4<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\n<span class=\"nx\">updateItem$<\/span><span class=\"p\">.<\/span><span class=\"nf\">next<\/span><span class=\"p\">({<\/span>\n  <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">4<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Romain Geffrault 4<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n<span class=\"p\">});<\/span>\n\n<span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">emit updateItem first time<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">id: 5<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\n<span class=\"nx\">updateItem$<\/span><span class=\"p\">.<\/span><span class=\"nf\">next<\/span><span class=\"p\">({<\/span>\n  <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">5<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Romain Geffrault 5<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n<span class=\"p\">});<\/span>\n\n\n<span class=\"nf\">setTimeout<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">emit updateItem second time<\/span><span class=\"dl\">\"<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">id: 4<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\n  <span class=\"nx\">updateItem$<\/span><span class=\"p\">.<\/span><span class=\"nf\">next<\/span><span class=\"p\">({<\/span>\n    <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">4<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Romain Geffrault 4, updated twice<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\n  <span class=\"p\">});<\/span>\n<span class=\"p\">},<\/span> <span class=\"mi\">5000<\/span><span class=\"p\">)<\/span>\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>\u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0646\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>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0646\u062a\u06cc\u062c\u0647 \u0627\u0633\u062a:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fi1hcr66sslhfszkscym2.png\" alt=\"logs de r\u00e9ponses \u0634\u0645\u0627 statestream \u06cc\u06a9 \u06af\u0631\u0648\u0647 rxjs\" loading=\"lazy\" width=\"461\" height=\"796\" title=\"\"><\/p>\n<p>\u0628\u0627 \u062a\u0634\u06a9\u0631 \u0627\u0632 \u0627\u067e\u0631\u0627\u062a\u0648\u0631 Groupby \u060c \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0686\u0646\u062f\u06cc\u0646 \u062f\u0631\u062e\u0648\u0627\u0633\u062a API \u0628\u0647 \u0635\u0648\u0631\u062a \u0645\u0648\u0627\u0632\u06cc \u0622\u0633\u0627\u0646 \u0627\u0633\u062a.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u067e\u06cc\u0648\u0646\u062f\u06cc \u0628\u0631\u0627\u06cc \u062f\u06cc\u062f\u0646 \u0627\u06cc\u0646 \u0632\u06cc\u0628\u0627\u06cc\u06cc \u062f\u0631 \u0639\u0645\u0644 \u0622\u0645\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u060c \u0645\u0646 \u062a\u0648\u0633\u0637 ID \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u06a9\u0631\u062f\u0645 \u06a9\u0647 \u06cc\u06a9 \u0645\u0648\u0631\u062f \u0627\u0633\u0627\u0633\u06cc \u0627\u0633\u062a \u060c \u0627\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0645\u0641\u0647\u0648\u0645 \u06af\u0631\u0648\u0647 \u0628\u0646\u062f\u06cc \u0631\u0627 \u0628\u06cc\u0634\u062a\u0631 \u062a\u062d\u062a \u0641\u0634\u0627\u0631 \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u0645. <\/p>\n<h2><span class=\"ez-toc-section\" id=\"%D9%84%DB%8C%D8%B3%D8%AA%DB%8C_%D8%A7%D8%B2_%D9%85%D9%88%D8%AC%D9%88%D8%AF%D8%A7%D8%AA_%D8%A8%D8%A7_%D8%A7%D8%B3%D8%A7%D8%B3%D9%86%D8%A7%D9%85%D9%87_%D8%A8%D8%A7%D8%B1%DA%AF%DB%8C%D8%B1%DB%8C_%D9%88%D8%A7%DA%A9%D9%86%D8%B4%DB%8C_%D8%B1%D8%A7_%D8%AF%D8%B1_%D9%85%D9%88%D8%B1%D8%AF_%D8%B2%D8%A7%D9%88%DB%8C%D9%87_%D8%A7%DB%8C_%D9%86%D8%B4%D8%A7%D9%86_%D8%AF%D9%87%DB%8C%D8%AF\"><\/span>\n<p>  \u0644\u06cc\u0633\u062a\u06cc \u0627\u0632 \u0645\u0648\u062c\u0648\u062f\u0627\u062a \u0628\u0627 \u0627\u0633\u0627\u0633\u0646\u0627\u0645\u0647 \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0648\u0627\u06a9\u0646\u0634\u06cc \u0631\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f \u0632\u0627\u0648\u06cc\u0647 \u0627\u06cc \u0646\u0634\u0627\u0646 \u062f\u0647\u06cc\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F428g5qvztinu6xwxfeud.gif\" alt=\"\u0644\u06cc\u0633\u062a \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0648\u0627\u06a9\u0646\u0634\u06cc \u0628\u0627 \u0631\u062f\u06cc\u0627\u0628\u06cc \u0648\u0636\u0639\u06cc\u062a \u0645\u0648\u062c\u0648\u062f\u06cc\u062a \u062f\u0642\u06cc\u0642 \u0628\u0627 Groupby RXJS Angular\" loading=\"lazy\" width=\"800\" height=\"430\" data-animated=\"true\" title=\"\"><\/p>\n<p>\u0645\u0646 \u0639\u0645\u0644\u06cc \u062e\u0648\u0627\u0647\u0645 \u0628\u0648\u062f \u0648 \u0639\u0645\u0644\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u0645 \u06a9\u0647 \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0647 \u06cc\u06a9 \u0645\u0648\u0631\u062f \u0648\u0627\u0642\u0639\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/media2.dev.to\/dynamic\/image\/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto\/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Ftvg3yhlbjpjucuhvttmq.png\" alt=\"\u0645\u062f\u06cc\u0631\u06cc\u062a \u0648\u0636\u0639\u06cc\u062a \u0645\u0648\u062c\u0648\u062f\u06cc\u062a \u062f\u0631 \u0644\u06cc\u0633\u062a \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0648\u0627\u06a9\u0646\u0634\u06cc \u0628\u0627 RXJS\" loading=\"lazy\" width=\"800\" height=\"551\" title=\"\"><\/p>\n<p>\u0645\u062a\u0623\u0633\u0641\u0627\u0646\u0647 \u060c \u067e\u06cc\u0648\u0646\u062f Stackbitz \u06a9\u0627\u0631 \u0646\u0645\u06cc \u06a9\u0646\u062f \u060c \u0627\u0645\u0627 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u062a\u06a9\u0631\u0627\u0631 \u06a9\u062f\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0631\u0627\u06cc \u0627\u0645\u062a\u062d\u0627\u0646 \u06a9\u0631\u062f\u0646 \u0622\u0646\u0647\u0627 \u06a9\u0644\u0648\u0646 \u06a9\u0646\u06cc\u062f. <\/p>\n<p>\u0645\u0646 \u0627\u0632 Nodejs v.20 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0645<\/p>\n<p><code>npm i<\/code><br \/><code>ng serve<\/code><\/p>\n<p>\u0635\u0641\u062d\u0627\u062a\u06cc \u06a9\u0647 \u0645\u0648\u0631\u062f \u0639\u0644\u0627\u0642\u0647 \u0645\u0627 \u0647\u0633\u062a\u0646\u062f \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632:<br \/>SRC \\ APP \\ \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627 \\ data-list \\ data-list.component.ts<br \/>&#038; src \\ app \\ \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627 \\ data-list \\ data-list.component.html<\/p>\n<p>\u0645\u0646 \u0646\u0638\u0631\u0627\u062a \u0632\u06cc\u0627\u062f\u06cc \u0631\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0645 \u062a\u0627 \u0628\u0647 \u0634\u0645\u0627 \u062a\u0648\u0636\u06cc\u062d \u062f\u0647\u0645 \u06a9\u0647 \u0627\u06af\u0631 \u0628\u0647 \u0622\u0646 \u0639\u0627\u062f\u062a \u0646\u06a9\u0646\u06cc\u062f \u060c \u0686\u06af\u0648\u0646\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f\u0647\u0627\u06cc RXJS \u0686\u06af\u0648\u0646\u0647 \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u0646\u062f. <\/p>\n<p>\u0645\u0646 \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0627\u0632 \u06cc\u06a9 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0627\u0639\u0644\u0627\u0646\u06cc\/\u0648\u0627\u06a9\u0646\u0634\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0645. \u0632\u06cc\u0631\u0627 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0645\u0646 \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u06a9\u0627\u0631\u0647\u0627 \u0628\u0627 \u0627\u06cc\u0646 \u0645\u0632\u0627\u06cc\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0633\u062a.<\/p>\n<p>\u0634\u0645\u0627 \u0645\u062a\u0648\u062c\u0647 \u062e\u0648\u0627\u0647\u06cc\u062f \u0634\u062f \u06a9\u0647 \u0645\u0646 \u0627\u06cc\u0646 \u067e\u0631\u0648\u0646\u062f\u0647 \u0631\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06a9\u0631\u062f\u0647 \u0627\u0645 \u06a9\u0647 \u062a\u0645\u0627\u0633 \u0647\u0627\u06cc API \u0642\u0628\u0644 \u0627\u0632 \u0627\u0634\u062a\u0631\u0627\u06a9 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627 \u0628\u0647 \u067e\u0627\u06cc\u0627\u0646 \u0645\u06cc \u0631\u0633\u062f (\u0645\u0627\u0646\u0646\u062f \u0622\u0646 \u0647\u06cc\u0686 \u062d\u0627\u0641\u0638\u0647 \u0648 \u0647\u06cc\u0686 \u0645\u0648\u0631\u062f \u0639\u062c\u06cc\u0628 \u0648 \u063a\u0631\u06cc\u0628).<\/p>\n<p>\u0645\u0646 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644 \u0631\u0627 \u062f\u0648\u0633\u062a \u062f\u0627\u0631\u0645 \u060c \u0627\u0645\u0627 \u0645\u06cc \u0641\u0647\u0645\u0645 \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0622\u0646 \u0631\u0627 \u0628\u06cc\u0634\u062a\u0631 \u0628\u0647\u0628\u0648\u062f \u0628\u062e\u0634\u06cc\u062f.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u060c \u0645\u0646 \u0628\u0627\u06cc\u062f \u0686\u0646\u062f\u06cc\u0646 \u0628\u0627\u0631 \u0627\u0646\u0648\u0627\u0639 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc TS \u0631\u0627 \u062a\u06a9\u0631\u0627\u0631 \u06a9\u0646\u0645.<br \/>\u062d\u062a\u06cc \u0627\u06af\u0631 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0646 \u062e\u06cc\u0644\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u0646\u0628\u0627\u0634\u062f \u060c \u0645\u0646 \u0627\u06cc\u0646 \u067e\u0631\u0648\u0646\u062f\u0647 \u0631\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0646\u06a9\u0631\u062f\u0645 \u062a\u0627 \u0646\u0645\u0627\u06cc\u0634 \u0644\u06cc\u0633\u062a \u0645\u0648\u062c\u0648\u062f \u0631\u0627 \u062f\u0631 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