HTTP methods suna bayyana nufinka a kan resource; status codes su ne amsar server da aka sanya cikin lamba. Kaddarori biyu suna da muhimmanci ga methods: safe (karantawa kawai, babu sakamako na gefe) da idempotent (maimaita shi yana ba da sakamako iri ɗaya — muhimmi ga retry masu aminci).
| Method | Manufa | Safe | Idempotent |
|---|
| GET | Karanta resource | Yes | Yes |
| POST | Ƙirƙira / kunna aiki | No | No |
| PUT | Maye gurbin resource | No | Yes |
| PATCH | Sabunta wani ɓangare | No | No* |
| DELETE | Cire resource | No | Yes |
| HEAD | Kamar GET, headers kawai | Yes | Yes |
Bambancin idempotency yana da amfani: saboda PUT da DELETE idempotent ne, client zai iya retry su cikin aminci bayan timeout; retry na POST marar-idempotent yana da haɗarin ƙirƙira kwafi (kuskuren biyan-biyu na gargajiya).
Status codes ana haɗa su ta lambar farko:
1xx Informational request received, continuing (100 Continue, 101 Switching)
2xx Success it worked (200 OK, 201 Created, 204 No Content)
3xx Redirection go elsewhere (301 Moved, 304 Not Modified)
4xx Client error YOUR request is wrong (400, 401, 403, 404, 429)
5xx Server error the SERVER failed (500, 502, 503, 504)
Layin mafi muhimmanci shine rarrabuwar 4xx da 5xx: 4xx na nufin client ya aika wani abu mara daidai (input mara kyau, ba a tantance ba, ba a samu ba) — retry ba tare da canji ba ba zai taimaka ba; 5xx na nufin server ya kasa — retry (da backoff) na iya yin nasara. Ka san waɗanda na yau da kullum sarai: 401 (ba a tantance ba) da 403 (an tantance amma ba a bari ba), 404 (ba a samu ba), 429 (an iyakance rate), 500 (faɗuwar server ta gaba ɗaya), 502/503/504 (bad gateway / babu / gateway timeout — galibi matsalar upstream ko wuce gona da iri).
Waɗannan codes su ne kwangilar da aka raba tsakanin kowane client da server, don haka ana sa ran gwaninta a nan ga kowa da ke gina ko amfani da APIs. Masu hira suna binciko bambance-bambancen da ke bayyana ainihin fahimta: 401 da 403, PUT da PATCH, kuma musamman idempotency, wanda kai tsaye ke shiryar da ko retries suna da aminci — mahimmin damuwa a tsarin da aka rarraba da kwararar biyan kuɗi. Mayar da status code daidai kuma yana sa API ɗinka mai hasashe kuma caches, proxies, da libraries na client suna sarrafa shi daidai, don haka wannan ilimi yana tsara kyakkyawan ƙirar API, ba kawai ƙananan bayanai ba.
Ɗakin karatu na tambayoyin hira na IT tare da amsoshi cikakke — daga Junior zuwa Senior.
Ba da Gudummawa