This documentation is for version v1.3.0 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_copy_data(nng_http_res *res, const void *body, size_t size);


The nng_http_res_copy_data() makes a copy of body (of size size) and sets the HTTP body for the response res to it. The copy will be deallocated automatically when res is freed.

The copied body data will be automatically sent with the response when it is sent using nng_http_conn_write_res().

This also updates the relevant Content-Length header of res.

The current framework does not support sending data via chunked transfer-encoding.
To avoid copying data, the nng_http_res_set_data() may be used instead.
It is a good idea to also set the Content-Type header.


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



Insufficient memory to perform the operation.


No support for HTTP in the library.