{"id":1431,"date":"2022-03-31T10:29:13","date_gmt":"2022-03-31T03:29:13","guid":{"rendered":"https:\/\/bitihightech.com\/?p=1431"},"modified":"2022-04-05T08:46:12","modified_gmt":"2022-04-05T01:46:12","slug":"restful-api","status":"publish","type":"post","link":"https:\/\/bitihightech.com\/?p=1431&lang=vi","title":{"rendered":"Restful API l\u00e0 g\u00ec? C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Rest API"},"content":{"rendered":"<p style=\"text-align: justify;\"><i><span style=\"font-weight: 400;\">Trong thi\u1ebft k\u1ebf website, c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean th\u01b0\u1eddng nh\u1eafc \u0111\u1ebfn kh\u00e1i ni\u1ec7m REST v\u00e0 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u RESTFUL, \u0111\u00e2y l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n website. Tuy nhi\u00ean, b\u1ea1n \u0111\u00e3 th\u1eadt s\u1ef1 hi\u1ec3u r\u00f5 kh\u00e1i ni\u1ec7m Restful API l\u00e0 g\u00ec ch\u01b0a? \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n, <a href=\"https:\/\/bitihightech.com\/\">BiTi Hightech<\/a> s\u1ebd gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u t\u1ea1i b\u00e0i vi\u1ebft n\u00e0y!<\/span><\/i><\/p>\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">Table of Contents<\/p><ul class=\"toc_list\"><li><a href=\"#Restful_API_la_gi\">Restful API l\u00e0 g\u00ec?\u00a0<\/a><\/li><li><a href=\"#Cau_phan_cua_RESTful_API\">C\u1ea5u ph\u1ea7n c\u1ee7a RESTful API<\/a><ul><li><a href=\"#Rest_la_gi\">Rest l\u00e0 g\u00ec?\u00a0<\/a><\/li><li><a href=\"#API_la_gi\">API l\u00e0 g\u00ec?\u00a0<\/a><\/li><\/ul><\/li><li><a href=\"#Cach_thuc_hoat_dong_cua_Restful_API\">C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Restful API\u00a0<\/a><ul><li><a href=\"#Cac_HTTP_method\">C\u00e1c HTTP method<\/a><\/li><li><a href=\"#Y_nghia_cua_cac_Status_code\">\u00dd ngh\u0129a c\u1ee7a c\u00e1c Status code<\/a><\/li><\/ul><\/li><li><a href=\"#Nhung_tieu_chi_de_mot_API_duoc_coi_la_RESTful\">Nh\u1eefng ti\u00eau ch\u00ed \u0111\u1ec3 m\u1ed9t API \u0111\u01b0\u1ee3c coi l\u00e0 RESTful<\/a><ul><li><a href=\"#1_May_khach_voi_may_chu_Clientserver\">1. M\u00e1y kh\u00e1ch v\u1edbi m\u00e1y ch\u1ee7 (Client\u2013server)<\/a><\/li><li><a href=\"#2_Stateless_Phi_trang_thai\">2. Stateless (Phi tr\u1ea1ng th\u00e1i)<\/a><\/li><li><a href=\"#3_Cacheable_Luu_duoc_vao_bo_nho_cache\">3. Cacheable (L\u01b0u \u0111\u01b0\u1ee3c v\u00e0o b\u1ed9 nh\u1edb cache)<\/a><\/li><li><a href=\"#4_Uniform_interface_Giao_dien_thong_nhat\">4. Uniform interface (Giao di\u1ec7n th\u1ed1ng nh\u1ea5t)<\/a><\/li><li><a href=\"#5_Layered_system_He_thong_phan_lop\">5. Layered system (H\u1ec7 th\u1ed1ng ph\u00e2n l\u1edbp)<\/a><\/li><li><a href=\"#6_Code_on_demand_Ma_theo_yeu_cau\">6. Code on demand (M\u00e3 theo y\u00eau c\u1ea7u)<\/a><\/li><\/ul><\/li><li><a href=\"#Uu_va_nhuoc_diem_cua_RESTful_API\">\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a RESTful API<\/a><\/li><\/ul><\/div>\n<h2 style=\"text-align: justify;\"><span id=\"Restful_API_la_gi\"><span style=\"font-weight: 400;\">Restful API l\u00e0 g\u00ec?\u00a0<\/span><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Restful API l\u00e0 ti\u00eau chu\u1ea9n trong thi\u1ebft k\u1ebf c\u00e1c \u1ee9ng d\u1ee5ng web (web services) \u0111\u1ec3 d\u1ec5 d\u00e0ng h\u01a1n cho vi\u1ec7c qu\u1ea3n l\u00fd c\u00e1c resource. Nguy\u00ean l\u00fd n\u00e0y ch\u00fa tr\u1ecdng \u0111\u1ebfn c\u00e1c t\u00e0i nguy\u00ean d\u1eef li\u1ec7u nh\u01b0 t\u1ec7p v\u0103n b\u1ea3n, \u00e2m thanh, h\u00ecnh \u1ea3nh, video clip\u2026 v\u00e0 c\u00e1c t\u00e0i nguy\u00ean d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i qua h\u1ec7 th\u1ed1ng HTTP.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Ti\u00eau chu\u1ea9n restful kh\u00f4ng gi\u1edbi h\u1ea1n ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh v\u00e0 logic code l\u1eadp tr\u00ecnh \u1ee9ng d\u1ee5ng. L\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ea5t k\u1ef3 ng\u00f4n ng\u1eef framework \u0111\u1ec3 thi\u1ebft k\u1ebf restful API cho web \u1ee9ng d\u1ee5ng. B\u00ean c\u1ea1nh \u0111\u00f3, ch\u1ee9c n\u0103ng quan tr\u1ecdng nh\u1ea5t c\u1ee7a REST l\u00e0 quy \u0111\u1ecbnh HTTP method v\u00e0 c\u00e1ch \u0111\u1ecbnh d\u1ea1ng URL, gi\u00fap qu\u1ea3n l\u00fd c\u00e1c resource d\u1ec5 h\u01a1n.\u00a0<\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-1437 size-full\" src=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/restful-api.jpg\" alt=\"Restful API l\u00e0 g\u00ec?\u00a0\" width=\"2245\" height=\"1587\" srcset=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/restful-api.jpg 2245w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/restful-api-300x212.jpg 300w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/restful-api-1024x724.jpg 1024w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/restful-api-768x543.jpg 768w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/restful-api-1536x1086.jpg 1536w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/restful-api-2048x1448.jpg 2048w\" sizes=\"(max-width: 2245px) 100vw, 2245px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><span id=\"Cau_phan_cua_RESTful_API\"><span style=\"font-weight: 400;\">C\u1ea5u ph\u1ea7n c\u1ee7a RESTful API<\/span><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 RESTful API, ch\u00fang t\u00f4i gi\u1ea3i th\u00edch r\u00f5 h\u01a1n v\u1ec1 c\u1ea5u ph\u1ea7n Rest v\u00e0 API c\u1ee7a ti\u00eau chu\u1ea9n n\u00e0y:\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"Rest_la_gi\"><span style=\"font-weight: 400;\">Rest l\u00e0 g\u00ec?\u00a0<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">REST l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a thu\u1eadt ng\u1eef Representational State Transfer c\u00f3 ngh\u0129a l\u00e0 chuy\u1ec3n \u0111\u1ed5i c\u1ea5u tr\u00fac d\u1eef li\u1ec7u. \u0110\u00e2y l\u00e0 m\u1ed9t ki\u1ec3u ki\u1ebfn tr\u00fac \u0111\u1ec3 vi\u1ebft API, s\u1eed d\u1ee5ng c\u00e1c HTTP \u0111\u1ec3 t\u1ea1o s\u1ef1 giao ti\u1ebfp gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb th\u00f4ng minh c\u00f3 k\u1ebft n\u1ed1i internet v\u1edbi nhau. Representational State Transfer ho\u1ea1t \u0111\u1ed9ng ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o ph\u01b0\u01a1ng th\u1ee9c HTTP, m\u1ed7i ho\u1ea1t \u0111\u1ed9ng th\u01b0\u1eddng c\u00f3 m\u1ed9t HTTP ri\u00eang.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"API_la_gi\"><span style=\"font-weight: 400;\">API l\u00e0 g\u00ec?\u00a0<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">API l\u00e0 t\u1eeb vi\u1ebft t\u1eaft c\u1ee7a thu\u1eadt ng\u1eef Application Programming Interface (<a href=\"https:\/\/vi.wikipedia.org\/wiki\/Giao_di%E1%BB%87n_l%E1%BA%ADp_tr%C3%ACnh_%E1%BB%A9ng_d%E1%BB%A5ng\">giao di\u1ec7n l\u1eadp tr\u00ecnh \u1ee9ng d\u1ee5ng<\/a>). \u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng th\u1ee9c trung gian gi\u00fap k\u1ebft n\u1ed1i c\u00e1c th\u01b0 vi\u1ec7n v\u00e0 \u1ee9ng d\u1ee5ng kh\u00e1c l\u1ea1i v\u1edbi nhau. API c\u00f3 kh\u1ea3 n\u0103ng truy xu\u1ea5t \u0111\u1ebfn c\u00e1c h\u00e0m hay d\u00f9ng t\u1eeb \u0111\u00f3 chia s\u1ebb v\u00e0 trao \u0111\u1ed5i d\u1eef li\u1ec7u gi\u1eefa c\u00e1c \u1ee9ng d\u1ee5ng.\u00a0<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span id=\"Cach_thuc_hoat_dong_cua_Restful_API\"><span style=\"font-weight: 400;\">C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Restful API\u00a0<\/span><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a RESTful API l\u00e0 chia nh\u1ecf m\u1ed9t transaction ra th\u00e0nh nhi\u1ec1u module v\u00e0 m\u1ed7i m\u1ed9t module s\u1ebd gi\u1ea3i quy\u1ebft c\u00f4ng vi\u1ec7c trong transaction t\u01b0\u01a1ng \u1ee9ng.\u00a0 Chuy\u1ec3n \u0111\u1ed5i c\u1ea5u tr\u00fac d\u1eef li\u1ec7u REST ho\u1ea1t \u0111\u1ed9ng d\u1ef1a v\u00e0o HTTP, m\u1ed7i ho\u1ea1t \u0111\u1ed9ng s\u1ebd s\u1eed d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c HTTP ri\u00eang bi\u1ec7t nh\u01b0 sau:\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"Cac_HTTP_method\"><span style=\"font-weight: 400;\">C\u00e1c HTTP method<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">RESTful API s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh \u0111\u1ec3 th\u1ef1c hi\u1ec7n t\u01b0\u01a1ng t\u00e1c v\u1edbi Resource v\u00e0 RESTful API s\u1eed d\u1ee5ng c\u00e1c HTTP method nh\u01b0:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">GET (Select): K\u1ebft qu\u1ea3 tr\u1ea3 v\u1ec1 1 Resource ho\u1eb7c m\u1ed9t danh s\u00e1ch Resource.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">POST (Create): Resource \u0111\u01b0\u1ee3c t\u1ea1o m\u1edbi.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PUT (Update): C\u1eadp nh\u1eadt th\u00f4ng tin.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">DELETE (Delete): Lo\u1ea1i b\u1ecf Resource.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Nh\u1eefng ho\u1ea1t \u0111\u1ed9ng tr\u00ean th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 CRUD, c\u00e1c ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi: Create, Read, Update, Delete (T\u1ea1o, \u0110\u1ecdc, S\u1eeda, X\u00f3a).<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone wp-image-1438 size-full\" src=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/cach-thuc-hoat-dong.jpg\" alt=\"C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Restful API\u00a0\" width=\"2245\" height=\"1587\" srcset=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/cach-thuc-hoat-dong.jpg 2245w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/cach-thuc-hoat-dong-300x212.jpg 300w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/cach-thuc-hoat-dong-1024x724.jpg 1024w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/cach-thuc-hoat-dong-768x543.jpg 768w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/cach-thuc-hoat-dong-1536x1086.jpg 1536w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/cach-thuc-hoat-dong-2048x1448.jpg 2048w\" sizes=\"(max-width: 2245px) 100vw, 2245px\" \/><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"Y_nghia_cua_cac_Status_code\"><span style=\"font-weight: 400;\">\u00dd ngh\u0129a c\u1ee7a c\u00e1c Status code<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Trong l\u0129nh v\u1ef1c thi\u1ebft k\u1ebf website, \u0111\u1ec3 hi\u1ec3u nh\u1eadn bi\u1ebft c\u00e1c k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1 sau khi request m\u1ed9t API n\u00e0o \u0111\u00f3 th\u00ec c\u1ea7n bi\u1ebft \u0111\u1ebfn nh\u1eefng status code c\u01a1 b\u1ea3n sau:\u00a0<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">200 OK: D\u00f2ng code \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1 m\u00e0n h\u00ecnh th\u00ec th\u1ef1c hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng th\u00e0nh c\u00f4ng v\u1edbi c\u00e1c HTTp method k\u1ec3 tr\u00ean.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">201 Created: K\u1ebft qu\u1ea3 tr\u1ea3 v\u1ec1 khi t\u1ea1o th\u00e0nh c\u00f4ng m\u1ed9t Resource.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">204 No Content: D\u1eef li\u1ec7u kh\u00f4ng \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1 sau khi Resource \u0111\u00e3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd ho\u1eb7c sau khi xo\u00e1 th\u00e0nh c\u00f4ng Resource.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">304 Not Modified: Gi\u00fap client c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng cache.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">400 Bad Request: Trang y\u00eau c\u1ea7u \u0111i\/\u0111\u1ebfn kh\u00f4ng h\u1ee3p l\u1ec7<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">401 Unauthorized: Request c\u1ea7n c\u00f3 quy\u1ec1n th\u00edch h\u1ee3p.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">403 Forbidden: B\u1ecb t\u1eeb ch\u1ed1i truy c\u1eadp.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">404 Not Found: Tr\u01b0\u1eddng h\u1ee3p URL kh\u00f4ng t\u1ed3n t\u1ea1i ho\u1eb7c trong URL kh\u00f4ng c\u00f3 Resource.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">405 Method Not Allowed: User kh\u00f4ng \u0111\u1ee7 quy\u1ec1n ho\u1eb7c HTTP method kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone wp-image-1439 size-full\" src=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/y-nghia-satus-code.jpg\" alt=\"\u00dd ngh\u0129a c\u1ee7a c\u00e1c Status code\" width=\"2245\" height=\"1587\" srcset=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/y-nghia-satus-code.jpg 2245w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/y-nghia-satus-code-300x212.jpg 300w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/y-nghia-satus-code-1024x724.jpg 1024w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/y-nghia-satus-code-768x543.jpg 768w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/y-nghia-satus-code-1536x1086.jpg 1536w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/y-nghia-satus-code-2048x1448.jpg 2048w\" sizes=\"(max-width: 2245px) 100vw, 2245px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><span id=\"Nhung_tieu_chi_de_mot_API_duoc_coi_la_RESTful\"><span style=\"font-weight: 400;\">Nh\u1eefng ti\u00eau ch\u00ed \u0111\u1ec3 m\u1ed9t API \u0111\u01b0\u1ee3c coi l\u00e0 RESTful<\/span><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Hi\u1ec7n nay, c\u00f3 nhi\u1ec1u API t\u1ef1 nh\u1eadn l\u00e0 RESTful API tuy nhi\u00ean ch\u00fang l\u1ea1i kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c ti\u00eau ch\u00ed c\u01a1 b\u1ea3n \u0111\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 RESTful. M\u1ed9t RESTful API c\u1ea7n ph\u1ea3i th\u1ecfa m\u00e3n 6 \u0111i\u1ec1u ki\u1ec7n d\u01b0\u1edbi \u0111\u00e2y:\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"1_May_khach_voi_may_chu_Clientserver\"><span style=\"font-weight: 400;\">1. M\u00e1y kh\u00e1ch v\u1edbi m\u00e1y ch\u1ee7 (Client\u2013server)<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">M\u1ed1i quan h\u1ec7 n\u00e0y ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean \u00fd t\u01b0\u1edfng m\u00e1y ch\u1ee7 v\u00e0 m\u00e1y kh\u00e1ch ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 t\u00e1ch bi\u1ec7t v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp, ri\u00eang l\u1ebb, ph\u01b0\u01a1ng th\u1ee9c ho\u1ea1t \u0111\u1ed9ng n\u00e0y nh\u1eb1m t\u00e1ch bi\u1ec7t giao di\u1ec7n c\u1ee7a ng\u01b0\u1eddi d\u00f9ng ra kh\u1ecfi d\u1eef li\u1ec7u l\u01b0u tr\u1eef c\u1ee7a m\u00e1y ch\u1ee7. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u00e1c \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ee5 thu\u1ed9c v\u00e0o m\u00e1y ch\u1ee7. B\u00ean c\u1ea1nh \u0111\u00f3, vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00f4ng l\u00e0m thay \u0111\u1ed5i \u0111\u1ebfn c\u1ea5u tr\u00fac d\u1eef li\u1ec7u c\u1ee7a m\u00e1y ch\u1ee7, v\u00e0 s\u1ef1 thay \u0111\u1ed5i c\u1ee7a m\u00e1y ch\u1ee7 c\u0169ng kh\u00f4ng l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00e1y kh\u00e1ch.\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"2_Stateless_Phi_trang_thai\"><span style=\"font-weight: 400;\">2. Stateless (Phi tr\u1ea1ng th\u00e1i)<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">M\u1ed7i request g\u1eedi \u0111\u1ebfn m\u00e1y ch\u1ee7 \u0111\u1ec1u ph\u1ea3i th\u1ef1c hi\u1ec7n \u0111\u1ed9c l\u1eadp v\u00e0 ch\u1ee9a \u0111\u1ea7y \u0111\u1ee7 th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 m\u00e1y ch\u1ee7 ho\u00e0n th\u00e0nh v\u00e0 tr\u1ea3 k\u1ebft qu\u1ea3 v\u1ec1 m\u00e1y kh\u00e1ch. B\u00ean c\u1ea1nh \u0111\u00f3, request c\u0169ng kh\u00f4ng th\u1ec3 l\u1ea1m d\u1ee5ng th\u00f4ng tin tr\u00ean m\u00e1y ch\u1ee7, \u0111i\u1ec1u n\u00e0y g\u1ecdi l\u00e0 phi tr\u1ea1ng th\u00e1i (tr\u1ea1ng th\u00e1i phi\u00ean tr\u00ean m\u00e1y kh\u00e1ch kh\u00f4ng b\u1ecb thay \u0111\u1ed5i). T\u1eeb \u0111\u00f3, API s\u1ebd \u0111\u01b0\u1ee3c t\u0103ng \u0111\u1ed9 tin c\u1eady v\u00e0 gi\u1ea3m thi\u1ec3u r\u00e0i nguy\u00ean s\u1eed d\u1ee5ng.\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"3_Cacheable_Luu_duoc_vao_bo_nho_cache\"><span style=\"font-weight: 400;\">3. Cacheable (L\u01b0u \u0111\u01b0\u1ee3c v\u00e0o b\u1ed9 nh\u1edb cache)<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">RESTful API \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf l\u01b0u tr\u1eef d\u1eef li\u1ec7u nh\u1eb1m t\u0103ng t\u00ednh t\u00e1i s\u1eed d\u1ee5ng b\u1edfi v\u00ec ngay c\u1ea3 API phi tr\u1ea1ng th\u00e1i c\u0169ng c\u00f3 th\u1ec3 t\u0103ng l\u01b0\u1ee3ng request khi c\u00f3 qu\u00e1 nhi\u1ec1u cu\u1ed9c g\u1ecdi \u0111\u1ebfn v\u00e0 \u0111i. N\u1ebfu c\u00e1c ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c l\u01b0u v\u00e0o cache, m\u00e1y ch\u1ee7 c\u00f3 nhi\u1ec7m v\u1ee5 l\u01b0u tr\u1eef d\u1eef li\u1ec7u n\u00e0y \u0111\u1ec3 ph\u1ea3n h\u1ed3i cho nh\u1eefng y\u00eau c\u1ea7u t\u01b0\u01a1ng t\u1ef1.\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"4_Uniform_interface_Giao_dien_thong_nhat\"><span style=\"font-weight: 400;\">4. Uniform interface (Giao di\u1ec7n th\u1ed1ng nh\u1ea5t)<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">T\u1ed5ng th\u1ec3 giao di\u1ec7n \u0111\u01b0\u1ee3c th\u1ed1ng nh\u1ea5t\u00a0 v\u00e0 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u nh\u1edd s\u1ef1 r\u00e0ng bu\u1ed9c c\u00e1c th\u00e0nh ph\u1ea7n ki\u1ebfn tr\u00fac b\u00ean trong d\u1ef1a tr\u00ean nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a REST. C\u00e1c nguy\u00ean t\u1eafc bi\u1ec3u di\u1ec5n t\u00e0i nguy\u00ean c\u01a1 b\u1ea3n bao g\u1ed3m quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean, \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u (XML, JSON) ho\u1eb7c \u0111\u1ecbnh d\u1ea1ng li\u00ean k\u1ebft\u2026<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"5_Layered_system_He_thong_phan_lop\"><span style=\"font-weight: 400;\">5. Layered system (H\u1ec7 th\u1ed1ng ph\u00e2n l\u1edbp)<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">M\u1ed7i m\u1ed9t ki\u1ebfn tr\u00fac c\u00f3 th\u1ec3 ch\u1ee9a nhi\u1ec1u l\u1edbp ph\u00e2n c\u1ea5p m\u00e0 m\u1ed7i l\u1edbp s\u1ebd th\u1ef1c hi\u1ec7n 1 ch\u1ee9c n\u0103ng v\u00e0 nhi\u1ec7m v\u1ee5 ri\u00eang. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, REST \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c h\u1ea1n ch\u1ebf h\u00e0nh vi c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n \u1edf m\u1ed7i ph\u00e2n c\u1ea5p. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c nh\u1eefng thay \u0111\u1ed5i \u1edf l\u1edbp b\u00ean trong m\u1eb7c d\u00f9 \u0111ang t\u01b0\u01a1ng t\u00e1c b\u00ean ngo\u00e0i giao di\u1ec7n.\u00a0<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span id=\"6_Code_on_demand_Ma_theo_yeu_cau\"><span style=\"font-weight: 400;\">6. Code on demand (M\u00e3 theo y\u00eau c\u1ea7u)<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Ti\u00eau ch\u00ed n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng m\u1edf r\u1ed9ng c\u00e1c ch\u1ee9c n\u0103ng v\u00e0 thao t\u00e1c c\u1ee7a m\u00e1y kh\u00e1ch, \u0111\u01b0\u1ee3c th\u1ef1c thi d\u01b0\u1edbi d\u1ea1ng c\u00e1c \u1ee9ng d\u1ee5ng ho\u1eb7c t\u1eadp l\u1ec7nh.\u00a0<\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-1440\" src=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/68.jpg\" alt=\"Nh\u1eefng ti\u00eau ch\u00ed \u0111\u1ec3 m\u1ed9t API \u0111\u01b0\u1ee3c coi l\u00e0 RESTful\" width=\"2245\" height=\"1587\" srcset=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/68.jpg 2245w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/68-300x212.jpg 300w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/68-1024x724.jpg 1024w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/68-768x543.jpg 768w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/68-1536x1086.jpg 1536w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/68-2048x1448.jpg 2048w\" sizes=\"(max-width: 2245px) 100vw, 2245px\" \/><\/p>\n<h2 style=\"text-align: justify;\"><span id=\"Uu_va_nhuoc_diem_cua_RESTful_API\"><span style=\"font-weight: 400;\">\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a RESTful API<\/span><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">C\u00f3 th\u1ec3 n\u00f3i, hi\u1ec7u qu\u1ea3 m\u00e0 ti\u00eau chu\u1ea9n Restful API mang l\u1ea1i cho c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean khi thi\u1ebft k\u1ebf website l\u00e0 v\u00f4 c\u00f9ng to l\u1edbn. Tuy nhi\u00ean, b\u1ea5t c\u1ee9 m\u1ed9t ti\u00eau chu\u1ea9n n\u00e0o c\u0169ng c\u00f3 c\u00e1c \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh. Tr\u01b0\u1edbc h\u1ebft, ch\u00fang ta h\u00e3y c\u00f9ng tham kh\u1ea3o c\u00e1c \u01b0u \u0111i\u1ec3m c\u1ee7a ti\u00eau chu\u1ea9n RESTful:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u1ee8ng d\u1ee5ng web tr\u1edf n\u00ean r\u00f5 r\u00e0ng h\u01a1n v\u00e0 t\u1ea1o \u0111i\u1ec3m nh\u1ea5n khi \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian, kh\u00f4ng c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u thao t\u00e1c v\u00e0 h\u1ea1n ch\u1ebf sai s\u00f3t trong qu\u00e1 tr\u00ecnh code.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c tr\u1ea3 v\u1ec1 v\u1edbi nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau HTML, JSON, XML\u2026 gi\u00fap d\u1ec5 d\u00e0ng s\u1eed d\u1ee5ng h\u01a1n.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n code c\u1ee7a l\u1eadp tr\u00ecnh vi\u00ean tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Restful api th\u01b0\u1eddng v\u00e0o t\u00e0i nguy\u00ean c\u1ee7a h\u1ec7 th\u1ed1ng thay v\u00ec ch\u00fa tr\u1ecdng c\u00e1c d\u1eef li\u1ec7u hay y\u1ebfu t\u1ed1 kh\u00e1c.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">B\u00ean c\u1ea1nh \u0111\u00f3, n\u00f3 t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m kh\u00f4ng \u0111\u00e1ng k\u1ec3 sau:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng RESTful API trong thi\u1ebft k\u1ebf web t\u1ed1n nhi\u1ec1u chi ph\u00ed trong kh\u00e2u v\u1eadn h\u00e0nh, ph\u00e1t tri\u1ec3n v\u00e0 ch\u1ec9nh s\u1eeda.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1ec3 c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng restful API, \u0111\u00f2i h\u1ecfi l\u1eadp tr\u00ecnh vi\u00ean ph\u1ea3i c\u00f3 ki\u1ebfn th\u1ee9c chuy\u00ean s\u00e2u c\u0169ng nh\u01b0 s\u1ef1 am hi\u1ec3u nh\u1ea5t \u0111\u1ecbnh v\u1ec1 l\u1eadp tr\u00ecnh v\u00e0 code.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Website d\u1ec5 g\u1eb7p r\u1eafc r\u1ed1i v\u1ec1 b\u1ea3o m\u1eadt v\u00e0 h\u1ec7 th\u1ed1ng d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng.\u00a0<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone wp-image-1441 size-full\" src=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/uu-a-nhuoc-diem-cu\u0309a-restful-api.jpg\" alt=\"\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a RESTful API\" width=\"2245\" height=\"1587\" srcset=\"https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/uu-a-nhuoc-diem-cu\u0309a-restful-api.jpg 2245w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/uu-a-nhuoc-diem-cu\u0309a-restful-api-300x212.jpg 300w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/uu-a-nhuoc-diem-cu\u0309a-restful-api-1024x724.jpg 1024w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/uu-a-nhuoc-diem-cu\u0309a-restful-api-768x543.jpg 768w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/uu-a-nhuoc-diem-cu\u0309a-restful-api-1536x1086.jpg 1536w, https:\/\/bitihightech.com\/wp-content\/uploads\/2022\/03\/uu-a-nhuoc-diem-cu\u0309a-restful-api-2048x1448.jpg 2048w\" sizes=\"(max-width: 2245px) 100vw, 2245px\" \/><\/p>\n<p style=\"text-align: justify;\"><i><span style=\"font-weight: 400;\">Hy v\u1ecdng nh\u1eefng th\u00f4ng tin, ki\u1ebfn th\u1ee9c v\u1ec1 RESTful API m\u00e0 Biti Hightech chia s\u1ebb, cung c\u1ea5p s\u1ebd b\u1ed5 \u00edch cho b\u1ea1n \u0111\u1ecdc. N\u1ebfu c\u00f3 nhu c\u1ea7u s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 v\u1ec1 thi\u1ebft k\u1ebf website, SEO, ch\u0103m s\u00f3c website\u2026 v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c c\u1ee7a BiTi, qu\u00fd kh\u00e1ch c\u00f3 th\u1ec3 li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i qua th\u00f4ng tin d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ed9i ng\u0169 nh\u00e2n vi\u00ean t\u01b0 v\u1ea5n:\u00a0<\/span><\/i><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u0110\u1ecba ch\u1ec9: 156 M\u1eb9 Th\u1ee9, H\u00f2a Xu\u00e2n, C\u1ea9m L\u1ec7, \u0110\u00e0 N\u1eb5ng<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u0110i\u1ec7n tho\u1ea1i: 091.553.1379<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Mail: baonguyen@biti.vn<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong thi\u1ebft k\u1ebf website, c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean th\u01b0\u1eddng nh\u1eafc \u0111\u1ebfn kh\u00e1i ni\u1ec7m REST v\u00e0 c\u1ea5u tr\u00fac d\u1eef li\u1ec7u RESTFUL, \u0111\u00e2y l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n website. Tuy nhi\u00ean, b\u1ea1n \u0111\u00e3 th\u1eadt s\u1ef1 hi\u1ec3u r\u00f5 kh\u00e1i ni\u1ec7m Restful API l\u00e0 g\u00ec ch\u01b0a? \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n, BiTi Hightech s\u1ebd [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1436,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[88],"class_list":["post-1431","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kien-thuc-website","tag-api"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.14 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Restful API l\u00e0 g\u00ec? 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