{"id":1983,"date":"2024-06-24T12:58:02","date_gmt":"2024-06-24T10:58:02","guid":{"rendered":"https:\/\/asgru.com\/?p=1983"},"modified":"2026-09-14T10:07:12","modified_gmt":"2026-09-14T08:07:12","slug":"codes-detat-http","status":"publish","type":"post","link":"https:\/\/asgru.com\/fr\/codes-detat-http\/","title":{"rendered":"Codes d\u2019\u00e9tat HTTP"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Les codes d\u2019\u00e9tat HTTP sont des codes standard utilis\u00e9s par les serveurs web pour informer le client (tel qu\u2019un navigateur) des r\u00e9sultats de ses requ\u00eates. Ces codes sont d\u00e9finis dans les sp\u00e9cifications HTTP et servent \u00e0 identifier l\u2019\u00e9tat de la ressource demand\u00e9e ainsi qu\u2019\u00e0 fournir des informations sur les actions \u00e0 entreprendre pour finaliser la requ\u00eate.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Historique et objectif<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les codes d\u2019\u00e9tat HTTP ont \u00e9t\u00e9 introduits dans la sp\u00e9cification HTTP afin de fournir un moyen de communication standardis\u00e9 entre les serveurs web et les clients. Ces codes permettent d\u2019automatiser la gestion des erreurs, d\u2019orienter les actions ult\u00e9rieures du client et de fournir des informations de diagnostic. Ils distinguent les requ\u00eates r\u00e9ussies des requ\u00eates non r\u00e9ussies, les redirections et indiquent des probl\u00e8mes sp\u00e9cifiques.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Structure et plages des codes d\u2019\u00e9tat<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les codes d\u2019\u00e9tat HTTP sont des nombres \u00e0 trois chiffres. Le premier chiffre d\u00e9finit la classe de l\u2019\u00e9tat et indique le type g\u00e9n\u00e9ral de r\u00e9ponse. Il existe cinq classes d\u2019\u00e9tats\u00a0:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>1xx\u00a0: R\u00e9ponses informatives<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ces codes indiquent que la requ\u00eate a \u00e9t\u00e9 re\u00e7ue et que le processus se poursuit.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>2xx\u00a0: R\u00e9ponses r\u00e9ussies<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ces codes indiquent que la requ\u00eate a \u00e9t\u00e9 re\u00e7ue, comprise et accept\u00e9e avec succ\u00e8s.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>3xx\u00a0: Redirection<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ces codes indiquent qu\u2019une action suppl\u00e9mentaire doit \u00eatre effectu\u00e9e par le client pour finaliser la requ\u00eate.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>4xx\u00a0: Erreurs du client<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ces codes indiquent des erreurs caus\u00e9es par des requ\u00eates incorrectes du client.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>5xx\u00a0: Erreurs du serveur<\/strong>\n<ul class=\"wp-block-list\">\n<li>Ces codes indiquent des erreurs caus\u00e9es par des d\u00e9faillances c\u00f4t\u00e9 serveur.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Description d\u00e9taill\u00e9e des codes d\u2019\u00e9tat<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1xx\u00a0: R\u00e9ponses informatives<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>100 Continue<\/strong>\u00a0: Le serveur a re\u00e7u la partie initiale de la requ\u00eate et le client doit poursuivre.<\/li>\n\n\n\n<li><strong>101 Switching Protocols<\/strong>\u00a0: Le serveur accepte de changer de protocole comme demand\u00e9 par le client.<\/li>\n\n\n\n<li><strong>102 Processing<\/strong>\u00a0: Le serveur a accept\u00e9 la requ\u00eate, mais son traitement n\u2019est pas termin\u00e9.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2xx\u00a0: R\u00e9ponses r\u00e9ussies<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>200 OK<\/strong>\u00a0: La requ\u00eate a \u00e9t\u00e9 trait\u00e9e avec succ\u00e8s et le serveur a renvoy\u00e9 la ressource demand\u00e9e.<\/li>\n\n\n\n<li><strong>201 Created<\/strong>\u00a0: La requ\u00eate a \u00e9t\u00e9 ex\u00e9cut\u00e9e avec succ\u00e8s et une nouvelle ressource a \u00e9t\u00e9 cr\u00e9\u00e9e.<\/li>\n\n\n\n<li><strong>202 Accepted<\/strong>\u00a0: La requ\u00eate a \u00e9t\u00e9 accept\u00e9e pour traitement, mais ce traitement n\u2019est pas termin\u00e9.<\/li>\n\n\n\n<li><strong>203 Non-Authoritative Information<\/strong>\u00a0: La requ\u00eate a \u00e9t\u00e9 trait\u00e9e avec succ\u00e8s, mais les informations proviennent d\u2019une source diff\u00e9rente.<\/li>\n\n\n\n<li><strong>204 No Content<\/strong>\u00a0: La requ\u00eate a \u00e9t\u00e9 trait\u00e9e avec succ\u00e8s, mais aucun contenu ne doit \u00eatre envoy\u00e9 dans la r\u00e9ponse.<\/li>\n\n\n\n<li><strong>205 Reset Content<\/strong>\u00a0: La requ\u00eate a \u00e9t\u00e9 trait\u00e9e avec succ\u00e8s et le client doit r\u00e9initialiser l\u2019affichage.<\/li>\n\n\n\n<li><strong>206 Partial Content<\/strong>\u00a0: Le serveur renvoie une partie du contenu en r\u00e9ponse \u00e0 une requ\u00eate de plage.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3xx\u00a0: Redirection<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>300 Multiple Choices<\/strong>\u00a0: La requ\u00eate peut \u00eatre satisfaite de plusieurs mani\u00e8res.<\/li>\n\n\n\n<li><strong>301 Moved Permanently<\/strong>\u00a0: La ressource demand\u00e9e a \u00e9t\u00e9 d\u00e9plac\u00e9e d\u00e9finitivement vers une nouvelle URL.<\/li>\n\n\n\n<li><strong>302 Found<\/strong>\u00a0: La ressource demand\u00e9e est temporairement disponible \u00e0 une URL diff\u00e9rente.<\/li>\n\n\n\n<li><strong>303 See Other<\/strong>\u00a0: La ressource doit \u00eatre r\u00e9cup\u00e9r\u00e9e \u00e0 l\u2019aide d\u2019une requ\u00eate GET vers une URL diff\u00e9rente.<\/li>\n\n\n\n<li><strong>304 Not Modified<\/strong>\u00a0: La ressource demand\u00e9e n\u2019a pas \u00e9t\u00e9 modifi\u00e9e depuis la derni\u00e8re requ\u00eate.<\/li>\n\n\n\n<li><strong>305 Use Proxy<\/strong>\u00a0: La ressource demand\u00e9e doit \u00eatre accessible via un proxy.<\/li>\n\n\n\n<li><strong>307 Temporary Redirect<\/strong>\u00a0: La ressource demand\u00e9e est temporairement disponible \u00e0 une URL diff\u00e9rente.<\/li>\n\n\n\n<li><strong>308 Permanent Redirect<\/strong>\u00a0: La ressource demand\u00e9e a \u00e9t\u00e9 d\u00e9plac\u00e9e d\u00e9finitivement vers une nouvelle URL.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4xx\u00a0: Erreurs du client<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>400 Bad Request<\/strong>\u00a0: Le serveur ne peut pas traiter la requ\u00eate en raison d\u2019une erreur du client.<\/li>\n\n\n\n<li><strong>401 Unauthorized<\/strong>\u00a0: Une authentification est requise pour acc\u00e9der \u00e0 la ressource.<\/li>\n\n\n\n<li><strong>402 Payment Required<\/strong>\u00a0: Ce code est r\u00e9serv\u00e9 \u00e0 une utilisation future.<\/li>\n\n\n\n<li><strong>403 Forbidden<\/strong>\u00a0: Le serveur refuse d\u2019ex\u00e9cuter la requ\u00eate.<\/li>\n\n\n\n<li><strong>404 Not Found<\/strong>\u00a0: La ressource demand\u00e9e est introuvable.<\/li>\n\n\n\n<li><strong>405 Method Not Allowed<\/strong>\u00a0: La m\u00e9thode de requ\u00eate n\u2019est pas autoris\u00e9e pour la ressource demand\u00e9e.<\/li>\n\n\n\n<li><strong>406 Not Acceptable<\/strong>\u00a0: La ressource demand\u00e9e ne peut pas \u00eatre fournie dans le format acceptable.<\/li>\n\n\n\n<li><strong>407 Proxy Authentication Required<\/strong>\u00a0: Une authentification aupr\u00e8s du proxy est requise.<\/li>\n\n\n\n<li><strong>408 Request Timeout<\/strong>\u00a0: Le d\u00e9lai d\u2019attente de la requ\u00eate a expir\u00e9.<\/li>\n\n\n\n<li><strong>409 Conflict<\/strong>\u00a0: La requ\u00eate ne peut pas \u00eatre trait\u00e9e en raison d\u2019un conflit avec l\u2019\u00e9tat actuel de la ressource.<\/li>\n\n\n\n<li><strong>410 Gone<\/strong>\u00a0: La ressource demand\u00e9e n\u2019est plus disponible et ne le sera plus \u00e0 l\u2019avenir.<\/li>\n\n\n\n<li><strong>411 Length Required<\/strong>\u00a0: La requ\u00eate doit sp\u00e9cifier la longueur du contenu.<\/li>\n\n\n\n<li><strong>412 Precondition Failed<\/strong>\u00a0: La pr\u00e9condition dans les en-t\u00eates de la requ\u00eate est fausse.<\/li>\n\n\n\n<li><strong>413 Payload Too Large<\/strong>\u00a0: L\u2019entit\u00e9 de la requ\u00eate est plus volumineuse que ce que le serveur est dispos\u00e9 ou capable de traiter.<\/li>\n\n\n\n<li><strong>414 URI Too Long<\/strong>\u00a0: L\u2019URI de la requ\u00eate est trop longue.<\/li>\n\n\n\n<li><strong>415 Unsupported Media Type<\/strong>\u00a0: L\u2019entit\u00e9 de la requ\u00eate a un type de m\u00e9dia que le serveur ou la ressource ne prend pas en charge.<\/li>\n\n\n\n<li><strong>416 Range Not Satisfiable<\/strong>\u00a0: Le client a demand\u00e9 une partie du fichier, mais le serveur ne peut pas fournir cette partie.<\/li>\n\n\n\n<li><strong>417 Expectation Failed<\/strong>\u00a0: Le serveur ne peut pas satisfaire les exigences du champ d\u2019en-t\u00eate de requ\u00eate Expect.<\/li>\n\n\n\n<li><strong>418 I&rsquo;m a teapot<\/strong>\u00a0: Un code humoristique introduit dans la RFC 2324.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">5xx\u00a0: Erreurs du serveur<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>500 Internal Server Error<\/strong>\u00a0: Un message d\u2019erreur g\u00e9n\u00e9rique lorsque le serveur rencontre une condition inattendue.<\/li>\n\n\n\n<li><strong>501 Not Implemented<\/strong>\u00a0: Le serveur ne prend pas en charge la fonctionnalit\u00e9 n\u00e9cessaire pour ex\u00e9cuter la requ\u00eate.<\/li>\n\n\n\n<li><strong>502 Bad Gateway<\/strong>\u00a0: Le serveur a re\u00e7u une r\u00e9ponse non valide d\u2019un serveur entrant.<\/li>\n\n\n\n<li><strong>503 Service Unavailable<\/strong>\u00a0: Le serveur est actuellement indisponible.<\/li>\n\n\n\n<li><strong>504 Gateway Timeout<\/strong>\u00a0: Le serveur n\u2019a pas re\u00e7u de r\u00e9ponse dans les d\u00e9lais d\u2019un serveur en amont.<\/li>\n\n\n\n<li><strong>505 HTTP Version Not Supported<\/strong>\u00a0: La version HTTP utilis\u00e9e dans la requ\u00eate n\u2019est pas prise en charge par le serveur.<\/li>\n\n\n\n<li><strong>506 Variant Also Negotiates<\/strong>\u00a0: La n\u00e9gociation transparente du contenu pour la requ\u00eate entra\u00eene une r\u00e9f\u00e9rence circulaire.<\/li>\n\n\n\n<li><strong>507 Insufficient Storage<\/strong>\u00a0: Le serveur est incapable de stocker la repr\u00e9sentation n\u00e9cessaire pour finaliser la requ\u00eate.<\/li>\n\n\n\n<li><strong>508 Loop Detected<\/strong>\u00a0: Le serveur a d\u00e9tect\u00e9 une boucle infinie lors du traitement d\u2019une requ\u00eate.<\/li>\n\n\n\n<li><strong>510 Not Extended<\/strong>\u00a0: Des extensions suppl\u00e9mentaires de la requ\u00eate sont requises pour que le serveur puisse l\u2019ex\u00e9cuter.<\/li>\n\n\n\n<li><strong>511 Network Authentication Required<\/strong>\u00a0: Une authentification est requise pour obtenir l\u2019acc\u00e8s au r\u00e9seau.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les codes d\u2019\u00e9tat HTTP jouent un r\u00f4le crucial dans le fonctionnement des applications et services web. Ils assurent une communication standardis\u00e9e entre les serveurs et les clients, contribuant \u00e0 g\u00e9rer le flux de donn\u00e9es et \u00e0 traiter les erreurs. La compr\u00e9hension de ces codes est essentielle pour les d\u00e9veloppeurs et les administrateurs, car elle permet de r\u00e9soudre efficacement les probl\u00e8mes et d\u2019optimiser les ressources web.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les codes d\u2019\u00e9tat HTTP sont des codes standard utilis\u00e9s par les serveurs web pour informer le client (tel qu\u2019un navigateur) des r\u00e9sultats de ses requ\u00eates. Ces codes sont d\u00e9finis dans les sp\u00e9cifications HTTP et servent \u00e0 identifier l\u2019\u00e9tat de la ressource demand\u00e9e ainsi qu\u2019\u00e0 fournir des informations sur les actions \u00e0 entreprendre pour finaliser la [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":801,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1983","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Codes d\u2019\u00e9tat HTTP<\/title>\n<meta name=\"description\" content=\"Les codes d\u2019\u00e9tat HTTP sont des codes standard utilis\u00e9s par les serveurs web pour informer le client (tel qu\u2019un 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