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This documentation is for version v1.1.0 of nng, but the latest released version is v1.8.0. see the documentation for v1.8.0 for the most up-to-date information.


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

int nng_http_res_set_reason(nng_http_res *res, const char *reason);


The nng_http_res_set_reason() sets the human readable “reason phrase” associated with the response res to reason.

If the value of reason is NULL (the default), then a default reason phrase is supplied based upon the value of the status code (see nng_http_res_set_status()).

The reason is never parsed automatically, but it can be a hint for humans to help them understand the nature of any erroneous result.

A local copy of the reason is made in the response res.


This function returns 0 on success, and non-zero otherwise.



Insufficient memory to perform the operation.


No support for HTTP in the library.

NNG Reference Manual vv1.1.0 © 2019 Staysail Systems, Inc, © 2018 Capitar IT Group BV
This document is supplied under the MIT License.
nanomsg™ and nng™ are trademarks of Garrett D'Amore.