{"id":1543,"date":"2022-02-11T06:46:27","date_gmt":"2022-02-11T06:46:27","guid":{"rendered":"https:\/\/topviecit.vn\/blog\/?p=1543"},"modified":"2022-02-11T06:46:28","modified_gmt":"2022-02-11T06:46:28","slug":"restful-api-la-gi","status":"publish","type":"post","link":"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/","title":{"rendered":"RESTful API L\u00e0 G\u00ec? Ki\u1ebfn Th\u1ee9c Cho Ng\u01b0\u1eddi M\u1edbi Nh\u1eadp M\u00f4n"},"content":{"rendered":"\n<p>M\u1ed9t trong nh\u1eefng c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn r\u1ed9ng r\u00e3i khi gi\u1edbi thi\u1ec7u website chung v\u00e0 thi\u1ebft l\u1eadp \u1ee9ng d\u1ee5ng n\u00f3i ri\u00eang ch\u00ednh l\u00e0 REST nguy\u00ean l\u00fd v\u00e0 RESTful. V\u1eady,<strong> RESTful API l\u00e0 g\u00ec<\/strong>? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API nh\u01b0 th\u1ebf n\u00e0o? H\u00e3y c\u00f9ng <strong><a href=\"https:\/\/topviecit.vn\/\">topviecit.vn<\/a><\/strong> tham kh\u1ea3o ngay b\u00e0i vi\u1ebft chi ti\u1ebft d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_63 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/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\" 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:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#Tim_hieu_ve_RESTful_API_la_gi\" title=\"T\u00ecm hi\u1ec3u v\u1ec1 RESTful API l\u00e0 g\u00ec?\">T\u00ecm hi\u1ec3u v\u1ec1 RESTful API l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#Khai_niem_cua_RESTful_API_la_gi\" title=\"Kh\u00e1i ni\u1ec7m c\u1ee7a RESTful API l\u00e0 g\u00ec?\">Kh\u00e1i ni\u1ec7m c\u1ee7a RESTful API l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#Cac_thanh_phan_cua_RESTful_API\" title=\"C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a RESTful API\">C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a RESTful API<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#Cach_thuc_hoat_dong_cua_RESTful_API_la_gi\" title=\"C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API l\u00e0 g\u00ec?\">C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#Methods_%E2%80%93_phuong_thuc\" title=\"Methods \u2013 ph\u01b0\u01a1ng th\u1ee9c\">Methods \u2013 ph\u01b0\u01a1ng th\u1ee9c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#Header_%E2%80%93_Authentication_quy_dinh_kieu_du_lieu_duoc_tra_ve\" title=\"Header \u2013 Authentication, quy \u0111\u1ecbnh ki\u1ec3u d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1\">Header \u2013 Authentication, quy \u0111\u1ecbnh ki\u1ec3u d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#Status_Code\" title=\"Status Code\">Status Code<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#Ho_tro_version\" title=\"H\u1ed7 tr\u1ee3 version\">H\u1ed7 tr\u1ee3 version<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"tim-hi\u1ec3u-v\u1ec1-restful-api-la-gi\"><span class=\"ez-toc-section\" id=\"Tim_hieu_ve_RESTful_API_la_gi\"><\/span><strong>T\u00ecm hi\u1ec3u v\u1ec1 RESTful API l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Tr\u01b0\u1edbc khi t\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API, b\u1ea1n c\u1ea7n hi\u1ec3u v\u1ec1 kh\u00e1i ni\u1ec7m c\u1ee7a RESTful API l\u00e0 g\u00ec. Ngo\u00e0i ra, n\u00ean n\u1eafm v\u1eefng \u0111\u01b0\u1ee3c c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 trong RESTful API.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"khai-ni\u1ec7m-c\u1ee7a-restful-api-la-gi\"><span class=\"ez-toc-section\" id=\"Khai_niem_cua_RESTful_API_la_gi\"><\/span><strong>Kh\u00e1i ni\u1ec7m c\u1ee7a RESTful API l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>RESTful API l\u00e0 ti\u00eau chu\u1ea9n s\u1eed d\u1ee5ng trong API, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 2000 v\u1edbi lu\u1eadn v\u0103n c\u1ee7a TS Roy Thomas Fielding \u2013 l\u00e0 ng\u01b0\u1eddi \u0111\u1ed3ng s\u00e1ng l\u1eadp ra chi\u00eau th\u1ee9c HTML. \u0110\u00e2y l\u00e0 m\u1ed9t d\u1ea1ng chuy\u1ec3n \u0111\u1ed5i c\u00e1c c\u1ea5u tr\u00fac d\u1eef li\u1ec7u, m\u1ed9t phong c\u00e1ch c\u1ea5u tr\u00fac \u0111\u1ec3 thi\u1ebft k\u1ebf \u1ee9ng d\u1ee5ng c\u00f3 k\u1ebft n\u1ed1i v\u1edbi nhau.<\/p>\n\n\n\n<p>V\u1eady, c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01a1n gi\u1ea3n r\u1eb1ng, RESTful API ch\u00ednh l\u00e0 \u1ee9ng d\u1ee5ng chuy\u1ec3n \u0111\u1ed5i c\u1ea5u tr\u00fac c\u1ee7a d\u1eef li\u1ec7u, d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i s\u1ebd c\u00f3 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c k\u1ebft n\u1ed1i v\u1edbi th\u01b0 vi\u1ec7n, \u1ee9ng d\u1ee5ng kh\u00e1c. Hi\u1ec7n nay, RESTful API kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 m\u00e0 ch\u1ec9 l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p gi\u00fap t\u1ea1o c\u00e1c \u1ee9ng d\u1ee5ng website server.<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/api-la-gi-diem-noi-bat-cua-api\/\">API l\u00e0 g\u00ec? Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a API<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-14.jpeg\" alt=\"T\u00ecm hi\u1ec3u v\u1ec1 RESTful API l\u00e0 g\u00ec?\" class=\"wp-image-1544\" title=\"T\u00ecm hi\u1ec3u v\u1ec1 RESTful API l\u00e0 g\u00ec?\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-14.jpeg 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-14-640x400.jpeg 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-14-768x480.jpeg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>T\u00ecm hi\u1ec3u v\u1ec1 RESTful API l\u00e0 g\u00ec?<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p>Khi s\u1eed d\u1ee5ng RESTful API s\u1ebd c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Gi\u00fap \u1ee9ng d\u1ee5ng r\u00f5 r\u00e0ng h\u01a1n.<\/li><li>\u0110\u1ea1i di\u1ec7n cho resource, kh\u00f4ng ph\u1ea3i \u0111\u1ea1i di\u1ec7n cho h\u00e0nh \u0111\u1ed9ng.<\/li><li>Code \u0111\u01a1n gi\u1ea3n, ng\u1eafn g\u1ecdn h\u01a1n.<\/li><li>D\u1eef li\u1ec7u tr\u1ea3 v\u1ec1 c\u00f3 nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng h\u01a1n, v\u00ed d\u1ee5 nh\u01b0 HTML, XML, JSON, RSS,\u2026<\/li><li>Ch\u00fa tr\u1ecdng v\u00e0o t\u00e0i nguy\u00ean h\u01a1n, cho ph\u00e9p website k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c v\u1edbi d\u1eef li\u1ec7u.<\/li><\/ul>\n\n\n\n<p>Tuy v\u1eady, RESTful API c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Chi ph\u00ed v\u1eadn h\u00e0nh t\u1ed1n k\u00e9m, \u0111\u1ec3 ph\u00e1t tri\u1ec3n, ch\u1ec9nh s\u1eeda c\u0169ng s\u1ebd t\u1ed1n nhi\u1ec1u kinh ph\u00ed t\u1eeb doanh nghi\u1ec7p.<\/li><li>\u0110\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c RESTful API s\u1ebd c\u1ea7n \u0111\u1ebfn \u0111\u1ed9i ng\u0169 nh\u00e2n s\u1ef1 c\u00f3 ki\u1ebfn th\u1ee9c r\u1ed9ng, chuy\u00ean s\u00e2u, hi\u1ec3u bi\u1ebft v\u1ec1 code, l\u1eadp tr\u00ecnh.<\/li><li>C\u00f3 th\u1ec3 ph\u00e1t sinh nhi\u1ec1u r\u1eafc r\u1ed1n h\u01a1n khi h\u1ec7 th\u1ed1ng b\u1ea3o m\u1eadt b\u1ecb t\u1ea5n c\u00f4ng.<\/li><\/ul>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/lap-trinh-backend\/\">Nh\u1eefng \u0111i\u1ec1u c\u1ea7n bi\u1ebft \u0111\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t Backend Developer<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"cac-thanh-ph\u1ea7n-c\u1ee7a-restful-api\"><span class=\"ez-toc-section\" id=\"Cac_thanh_phan_cua_RESTful_API\"><\/span><strong>C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a RESTful API<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>RESTful API s\u1ebd bao g\u1ed3m 2 th\u00e0nh ph\u1ea7n ch\u00ednh l\u00e0:<\/p>\n\n\n\n<p><strong>API (App Programming Interface):<\/strong> Giao di\u1ec7n l\u1eadp tr\u00ecnh \u1ee9ng d\u1ee5ng, l\u00e0 t\u1eadp h\u1ee3p c\u00e1c quy t\u1eafc, c\u01a1 ch\u1edb m\u00e0 \u1ee9ng d\u1ee5ng\/th\u00e0nh ph\u1ea7n t\u01b0\u01a1ng t\u00e1c v\u1edbi \u1ee9ng d\u1ee5ng. API s\u1ebd gi\u00fap t\u1ea1o ra ph\u01b0\u01a1ng th\u1ee9c k\u1ebft n\u1ed1i th\u01b0 vi\u1ec7n v\u1edbi \u1ee9ng d\u1ee5ng.&nbsp; API s\u1ebd gi\u00fap tr\u1ea3 v\u1ec1 d\u1eef li\u1ec7u c\u1ea7n cho \u1ee9ng d\u1ee5ng \u1edf nh\u1eefng bi\u1ebfn ph\u1ed5 d\u1eef li\u1ec7u, d\u1ea1ng nh\u01b0 XML ho\u1eb7c JSON.<\/p>\n\n\n\n<p><strong>REST (Representational State Transfer):<\/strong> D\u1ea1ng chuy\u1ec3n \u0111\u1ed5i c\u1ea5u tr\u00fac d\u1eef li\u1ec7u, hay l\u00e0 m\u1ed9t ki\u1ec3u ki\u1ebfn tr\u00fac \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ec3 vi\u1ebft API.&nbsp; REST s\u1eed d\u1ee5ng HTTP ph\u01b0\u01a1ng th\u1ee9c v\u00e0 t\u1ea1o ra giao ti\u1ebfp gi\u1eefa c\u00e1c m\u00e1y v\u1edbi nhau. Thay v\u00ec s\u1eed d\u1ee5ng URL \u0111\u1ec3 x\u1eed l\u00fd ng\u01b0\u1eddi d\u00f9ng th\u00f4ng tin, REST s\u1ebd th\u1ef1c hi\u1ec7n g\u1eedi m\u1ed9t HTTP y\u00eau c\u1ea7u, v\u00ed d\u1ee5 nh\u01b0 POST, GET, DELETE,\u2026 \u0111\u1ebfn URL x\u1eed l\u00fd d\u1eef li\u1ec7u.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-15.jpeg\" alt=\"RESTful API g\u1ed3m 2 th\u00e0nh ph\u1ea7n ch\u00ednh l\u00e0 REST v\u00e0 API\" class=\"wp-image-1545\" title=\"RESTful API g\u1ed3m 2 th\u00e0nh ph\u1ea7n ch\u00ednh l\u00e0 REST v\u00e0 API\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-15.jpeg 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-15-640x400.jpeg 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-15-768x480.jpeg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>RESTful API g\u1ed3m 2 th\u00e0nh ph\u1ea7n ch\u00ednh l\u00e0 REST v\u00e0 API<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"cach-th\u1ee9c-ho\u1ea1t-d\u1ed9ng-c\u1ee7a-restful-api-la-gi\"><span class=\"ez-toc-section\" id=\"Cach_thuc_hoat_dong_cua_RESTful_API_la_gi\"><\/span><strong>C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>RESTful API s\u1ebd ho\u1ea1t \u0111\u1ed9ng ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o s\u1eed d\u1ee5ng HTTP\/1 k\u00e8m theo c\u00e1c \u0111\u1ecbnh ngh\u0129a m\u00e0 c\u1ea3 client, server \u0111\u00e3 tu\u00e2n th\u1ee7 tr\u01b0\u1edbc \u0111\u00f3. Ph\u01b0\u01a1ng th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API s\u1ebd bao g\u1ed3m 3 y\u1ebfu t\u1ed1 ch\u00ednh l\u00e0:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"methods-ph\u01b0\u01a1ng-th\u1ee9c\"><span class=\"ez-toc-section\" id=\"Methods_%E2%80%93_phuong_thuc\"><\/span><strong>Methods \u2013 ph\u01b0\u01a1ng th\u1ee9c<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Khi trao \u0111\u1ed5i state, b\u1ea1n c\u1ea7n giao ti\u1ebfp resource qua t\u00e1c v\u1ee5 g\u1eedi c\u00e1c request response th\u00f4ng qua HTTP\/1. C\u1ee5 th\u1ec3, b\u1ea1n c\u1ea7n ch\u1ec9 \u0111\u1ecbnh c\u00e1c method nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>GET: Tr\u1ea3 v\u1ec1 1 resource ho\u1eb7c 1 danh s\u00e1ch c\u1ee7a resource.<\/li><li>POST: T\u1ea1o m\u1edbi 1 resource.<\/li><li>PUT: C\u1eadp nh\u1eadt th\u00f4ng tin cho to\u00e0n b\u1ed9 resource.<\/li><li>PATCH: C\u1eadp nh\u1eadt th\u00f4ng tin cho m\u1ed9t ph\u1ea7n resource.<\/li><li>DELETE: X\u00f3a 1 resource.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"header-authentication-quy-d\u1ecbnh-ki\u1ec3u-d\u1eef-li\u1ec7u-d\u01b0\u1ee3c-tr\u1ea3-v\u1ec1\"><span class=\"ez-toc-section\" id=\"Header_%E2%80%93_Authentication_quy_dinh_kieu_du_lieu_duoc_tra_ve\"><\/span><strong>Header \u2013 Authentication, quy \u0111\u1ecbnh ki\u1ec3u d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>RESTful API l\u00e0 stateless, do \u0111\u00f3, m\u1ed7i 1 request s\u1ebd kh\u00f4ng bi\u1ebft \u0111\u01b0\u1ee3c th\u00f4ng tin tr\u01b0\u1edbc \u0111\u00f3. \u0110i\u1ec1u n\u00e0y s\u1ebd kh\u00e1c bi\u1ec7t v\u1edbi t\u00e1c v\u1ee5 truy c\u1eadp website, tr\u00ecnh duy\u1ec7t lu\u00f4n c\u00f3 s\u1eb5n session, cookie \u0111\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c request c\u1ee7a ai, th\u00f4ng tin tr\u01b0\u1edbc \u0111\u00f3 l\u00e0 g\u00ec.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi RESTful API, 1 request c\u1ea7n ph\u1ea3i x\u00e1c th\u1ef1c quy\u1ec1n khi truy c\u1eadp, ngo\u00e0i ra s\u1ebd ph\u1ea3i s\u1eed d\u1ee5ng th\u00eam th\u00f4ng tin \u1edf header. V\u00ed d\u1ee5 \u0111\u1ed1i v\u1edbi th\u00f4ng tin Authorization mang theo 1 user token. Hi\u1ec7n s\u1ebd c\u00f3 3 ch\u1ebf \u0111\u1ed9 authentication ch\u00ednh l\u00e0 JSON web token (JWT), HTTP Basic v\u00e0 Oauth2. Header c\u0169ng s\u1ebd gi\u00fap cho client c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u1ecbnh lo\u1ea1i Content mong mu\u1ed1n \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1. B\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n th\u00f4ng qua Accept trong header.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"status-code\"><span class=\"ez-toc-section\" id=\"Status_Code\"><\/span><strong>Status Code<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Ngo\u00e0i ra, trong RESTful API, response s\u1ebd g\u1ed3m m\u1ed9t s\u1ed1 status code \u0111\u1ec3 quy \u0111\u1ecbnh c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3. V\u00ed d\u1ee5 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>200 OK: Tr\u1ea3 v\u1ec1 ph\u01b0\u01a1ng th\u1ee9c th\u00e0nh c\u00f4ng.<\/li><li>204 No Content: Tr\u1ea3 v\u1ec1 trong tr\u01b0\u1eddng h\u1ee3p resource x\u00f3a th\u00e0nh c\u00f4ng.<\/li><li>201 Created: Tr\u1ea3 v\u1ec1 khi 1 resource \u0111\u01b0\u1ee3c t\u1ea1o.<\/li><li>304 Not Modified: Resource server kh\u00f4ng thay \u0111\u1ed5i khi client c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c d\u1eef li\u1ec7u cache.<\/li><li>400 Bad Request: Th\u00f4ng b\u00e1o c\u00e1c request kh\u00f4ng h\u1ee3p l\u1ec7.<\/li><li>M\u1ed9t s\u1ed1 status code kh\u00e1c: 401 Unauthorized, 403 Forbidden, 404 Not Found, 405 Method Not Allowed, 410 Gone, 415 Unsupported Media Type, 422 Unprocessable Entity, 429 Too Many Requests.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h\u1ed7-tr\u1ee3-version\"><span class=\"ez-toc-section\" id=\"Ho_tro_version\"><\/span><strong>H\u1ed7 tr\u1ee3 version<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>RESTful API th\u01b0\u1eddng s\u1ebd c\u00f3 c\u00e1c version nh\u01b0 \/v1, \/v2,\u2026 \u0111\u1ec3 h\u1ed7 tr\u1ee3 cho c\u00e1c phi\u00ean b\u1ea3n c\u0169 h\u01a1n. \u0110\u00e2y l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng khi b\u1ea1n th\u1ef1c hi\u1ec7n n\u00e2ng c\u1ea5p API l\u00ean c\u00e1c version kh\u00e1c. Nh\u1eefng s\u1ef1 n\u00e2ng c\u1ea5p n\u00e0y s\u1ebd t\u1ea1o n\u00ean c\u00e1c thay \u0111\u1ed5i kh\u00e1c bi\u1ec7t, v\u00ed d\u1ee5 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Thay \u0111\u1ed5i v\u1ec1 URL.<\/li><li>Thay \u0111\u1ed5i v\u1ec1 c\u00e1ch th\u1ee9c x\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng.<\/li><li>Thay \u0111\u1ed5i v\u1ec1 resource name, c\u1ea5u tr\u00fac.<\/li><\/ul>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/docker-la-gi\/\">Docker l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng Docker cho sinh vi\u00ean IT m\u1edbi ra tr\u01b0\u1eddng<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-16.jpeg\" alt=\"C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p\" class=\"wp-image-1546\" title=\"C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-16.jpeg 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-16-640x400.jpeg 640w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/image-16-768x480.jpeg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption><em>C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p>Tr\u00ean \u0111\u00e2y ch\u1ec9 l\u00e0 m\u1ed9t s\u1ed1 th\u00f4ng tin v\u1ec1 RESTful API. Hy v\u1ecdng v\u1edbi gi\u1edbi h\u1ea1n chia s\u1ebb ng\u1eafn g\u1ecdn trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd hi\u1ec3u h\u01a1n v\u1ec1 <strong>RESTful API l\u00e0 g\u00ec<\/strong> c\u0169ng nh\u01b0 c\u00e1ch \u0111\u1ec3 v\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c RESTful API hi\u1ec7u qu\u1ea3 cho c\u00f4ng vi\u1ec7c c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<p>>>>Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/lap-trinh-vien-full-stack-la-gi\/\">L\u1eadp tr\u00ecnh vi\u00ean Full Stack l\u00e0 g\u00ec? M\u00f4 t\u1ea3 c\u00f4ng vi\u1ec7c<\/a><\/p>\n\n\n\n<p class=\"has-text-align-right\"><em>H\u00ecnh \u1ea3nh: S\u01b0u t\u1ea7m<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u1ed9t trong nh\u1eefng c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn r\u1ed9ng r\u00e3i khi gi\u1edbi thi\u1ec7u website chung v\u00e0 thi\u1ebft l\u1eadp \u1ee9ng d\u1ee5ng n\u00f3i ri\u00eang ch\u00ednh l\u00e0 REST nguy\u00ean l\u00fd v\u00e0 RESTful. V\u1eady, RESTful API l\u00e0 g\u00ec? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API nh\u01b0 th\u1ebf n\u00e0o? H\u00e3y c\u00f9ng [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":1547,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[86],"tags":[142],"class_list":["post-1543","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chia-se-kinh-nghiem","tag-api-la-gi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>RESTful API L\u00e0 G\u00ec? Ki\u1ebfn Th\u1ee9c Cho Ng\u01b0\u1eddi M\u1edbi Nh\u1eadp M\u00f4n<\/title>\n<meta name=\"description\" content=\"RESTful API l\u00e0 g\u00ec? L\u00e0 ti\u00eau chu\u1ea9n s\u1eed d\u1ee5ng trong API, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 2000 v\u1edbi lu\u1eadn v\u0103n c\u1ee7a TS Roy Thomas Fielding.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RESTful API L\u00e0 G\u00ec? Ki\u1ebfn Th\u1ee9c Cho Ng\u01b0\u1eddi M\u1edbi Nh\u1eadp M\u00f4n\" \/>\n<meta property=\"og:description\" content=\"RESTful API l\u00e0 g\u00ec? L\u00e0 ti\u00eau chu\u1ea9n s\u1eed d\u1ee5ng trong API, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 2000 v\u1edbi lu\u1eadn v\u0103n c\u1ee7a TS Roy Thomas Fielding.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/\" \/>\n<meta property=\"og:site_name\" content=\"TopviecIT\" \/>\n<meta property=\"article:published_time\" content=\"2022-02-11T06:46:27+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-02-11T06:46:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2022\/02\/restful-api-la-gi.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Dang Huong\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dang Huong\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/topviecit.vn\/blog\/restful-api-la-gi\/\"},\"author\":{\"name\":\"Dang Huong\",\"@id\":\"https:\/\/topviecit.vn\/blog\/#\/schema\/person\/bf5d0c56a2c02d2a5dba393c3e18f8de\"},\"headline\":\"RESTful API L\u00e0 G\u00ec? 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