NNG_HTTP_RES_SET_STATUS(3http)

💖 NAME 💖

hii bestie, welcome to the NNG Reference Manual page for nng_http_res_set_status — aka NNG_HTTP_...SET_STATUS(3http). The whole vibe: set HTTP response status. That’s it, that’s the job. ✨

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🌸 SYNOPSIS 🌸

#include <nng/nng.h>
#include <nng/supplemental/http/http.h>

int nng_http_res_set_status(nng_http_res *res, uint16_t status);

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🦋 DESCRIPTION 🦋

okay so nng_http_res_set_status() sets the numeric HTTP status code associated with the response res to status. The default value for a newly allocated response is 200 (NNG_HTTP_STATUS_OK) — iconic, honestly. 💅

⚠️ but bestie, listen: the status is not verified, so the caller should take care to ensure that only a valid code is supplied. no cap, it will not hold your hand on this one. 🙈

For convenience, a number of predefined symbols are available:

           enum {
               NNG_HTTP_STATUS_CONTINUE                 = 100,
               NNG_HTTP_STATUS_SWITCHING                = 101,
               NNG_HTTP_STATUS_PROCESSING               = 102,
               NNG_HTTP_STATUS_OK                       = 200,
               NNG_HTTP_STATUS_CREATED                  = 201,
               NNG_HTTP_STATUS_ACCEPTED                 = 202,
               NNG_HTTP_STATUS_NOT_AUTHORITATIVE        = 203,
               NNG_HTTP_STATUS_NO_CONTENT               = 204,
               NNG_HTTP_STATUS_RESET_CONTENT            = 205,
               NNG_HTTP_STATUS_PARTIAL_CONTENT          = 206,
               NNG_HTTP_STATUS_MULTI_STATUS             = 207,
               NNG_HTTP_STATUS_ALREADY_REPORTED         = 208,
               NNG_HTTP_STATUS_IM_USED                  = 226,
               NNG_HTTP_STATUS_MULTIPLE_CHOICES         = 300,
               NNG_HTTP_STATUS_STATUS_MOVED_PERMANENTLY = 301,
               NNG_HTTP_STATUS_FOUND                    = 302,
               NNG_HTTP_STATUS_SEE_OTHER                = 303,
               NNG_HTTP_STATUS_NOT_MODIFIED             = 304,
               NNG_HTTP_STATUS_USE_PROXY                = 305,
               NNG_HTTP_STATUS_TEMPORARY_REDIRECT       = 307,
               NNG_HTTP_STATUS_PERMANENT_REDIRECT       = 308,
               NNG_HTTP_STATUS_BAD_REQUEST              = 400,
               NNG_HTTP_STATUS_UNAUTHORIZED             = 401,
               NNG_HTTP_STATUS_PAYMENT_REQUIRED         = 402,
               NNG_HTTP_STATUS_FORBIDDEN                = 403,
               NNG_HTTP_STATUS_NOT_FOUND                = 404,
               NNG_HTTP_STATUS_METHOD_NOT_ALLOWED       = 405,
               NNG_HTTP_STATUS_NOT_ACCEPTABLE           = 406,
               NNG_HTTP_STATUS_PROXY_AUTH_REQUIRED      = 407,
               NNG_HTTP_STATUS_REQUEST_TIMEOUT          = 408,
               NNG_HTTP_STATUS_CONFLICT                 = 409,
               NNG_HTTP_STATUS_GONE                     = 410,
               NNG_HTTP_STATUS_LENGTH_REQUIRED          = 411,
               NNG_HTTP_STATUS_PRECONDITION_FAILED      = 412,
               NNG_HTTP_STATUS_PAYLOAD_TOO_LARGE        = 413,
               NNG_HTTP_STATUS_ENTITY_TOO_LONG          = 414,
               NNG_HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE   = 415,
               NNG_HTTP_STATUS_RANGE_NOT_SATISFIABLE    = 416,
               NNG_HTTP_STATUS_EXPECTATION_FAILED       = 417,
               NNG_HTTP_STATUS_TEAPOT                   = 418,
               NNG_HTTP_STATUS_UNPROCESSABLE_ENTITY     = 422,
               NNG_HTTP_STATUS_LOCKED                   = 423,
               NNG_HTTP_STATUS_FAILED_DEPENDENCY        = 424,
               NNG_HTTP_STATUS_UPGRADE_REQUIRED         = 426,
               NNG_HTTP_STATUS_PRECONDITION_REQUIRED    = 428,
               NNG_HTTP_STATUS_TOO_MANY_REQUESTS        = 429,
               NNG_HTTP_STATUS_HEADERS_TOO_LARGE        = 431,
               NNG_HTTP_STATUS_UNAVAIL_LEGAL_REASONS    = 451,
               NNG_HTTP_STATUS_INTERNAL_SERVER_ERROR    = 500,
               NNG_HTTP_STATUS_NOT_IMPLEMENTED          = 501,
               NNG_HTTP_STATUS_BAD_GATEWAY              = 502,
               NNG_HTTP_STATUS_SERVICE_UNAVAILABLE      = 503,
               NNG_HTTP_STATUS_GATEWAY_TIMEOUT          = 504,
               NNG_HTTP_STATUS_HTTP_VERSION_NOT_SUPP    = 505,
               NNG_HTTP_STATUS_VARIANT_ALSO_NEGOTIATES  = 506,
               NNG_HTTP_STATUS_INSUFFICIENT_STORAGE     = 507,
               NNG_HTTP_STATUS_LOOP_DETECTED            = 508,
               NNG_HTTP_STATUS_NOT_EXTENDED             = 510,
               NNG_HTTP_STATUS_NETWORK_AUTH_REQUIRED    = 511,
           };

Please see the relevant HTTP RFCs for the semantics and correct use of these status codes. iykyk, the RFCs are the lore. 📚✨

✨ Tip ✨ It is a good idea to also set the reason message with nng_http_set_reason(). This will help any humans who may have to diagnose a failure. future-you and random debuggers will thank you, fr fr. 🫶

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🎀 RETURN VALUES 🎀

This function returns 0 on success, and non-zero otherwise. slay when it’s 0, sigh when it’s not. 😌

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🌈 ERRORS 🌈

• NNG_ENOTSUP — No support for HTTP in the library. like, the HTTP girlies are simply not here. 💀

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👑 SEE ALSO 👑

nng_http_res_alloc(3http), nng_http_req_get_status(3http), nng_http_req_set_reason(3http), nng(7)

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okay that’s the whole page bestie! this came from the NNG Reference Manual, page NNG_HTTP_...SET_STATUS(3http), dated 2026-01-13. mwah 💋✨