HTTP status code diklompokake dadi limang kelas miturut angka pisanane, lan milih sing bener ngidini client nanggapi kanthi bener tanpa mem-parse body.
2xx Success — request sukses
3xx Redirection — perlu tumindak maneh / resource wis pindhah
4xx Client error — sing nyeluk salah
5xx Server error — server gagal
2xx
200 OK — sukses umum (GET, PUT, PATCH).201 Created — resource digawe (mbalekake header Location).202 Accepted — ditampa kanggo proses async, durung rampung.204 No Content — sukses tanpa body (umume kanggo DELETE).4xx
400 Bad Request — sintaks salah utawa input ora valid.401 Unauthorized — durung diautentikasi (ora ana/kredensial ora valid).403 Forbidden — wis diautentikasi nanging ora diidini.404 Not Found — resource ora ana.409 Conflict — konflik karo state saiki (contone email dobel).422 Unprocessable Entity — wangune bener nanging gagal validasi.429 Too Many Requests — kena rate limit.5xx
500 Internal Server Error — kesalahan server sing ora dikarepake.503 Service Unavailable — sauntara mati/keakehan beban.POST /users → 201 Created
Location: /users/42
DELETE /users/42 → 204 No Content
GET /users/999 → 404 Not Found
{ "error": "user not found" }
Bedane utama sing didhedhes pewawancara: 401 ("sapa kowe?") vs 403 ("aku ngerti kowe, nanging ora oleh"), lan 400 (sintaks salah) vs 422 (sintaks valid, data ora valid).
Status code iku sinyal utama ing response REST — client, proxy, monitoring, lan logika retry kabeh gumantung marang dheweke, mula ndadekake bener iku penting kanggo interoperabilitas. Kegagalan umum yaiku mbalekake 200 OK kanthi body { "error": ... }: iki meksa saben client mem-parse body kanggo ngerti apa panggilan sukses, ngrusak tooling HTTP umum, lan ndhelikake kegagalan saka monitoring. Kode sing presisi uga nyetir prilaku otomatis: 429 utawa 503 ngandhani client sing digawe apik kanggo mundur lan nyoba maneh, dene 4xx ngomong "aja retry, dandani request-e." Pewawancara nganggo pitakonan iki kanggo mriksa yen kowe mangerteni HTTP minangka kontrak tinimbang transport sing bodho, lan yen kowe mbedakake pasangan sing alus (401/403, 400/422) kanthi bener — ciri wong sing wis mbangun lan nganggo API nyata.
Pustaka pitakon wawancara IT kanthi jawaban rinci — saka Junior nganti Senior.
Nyumbang