#include <nng/nng.h>
#include <nng/supplemental/http/http.h>
int nng_http_client_alloc(nng_http_client *clientp, const nng_url *url);
The nng_http_client_alloc()
allocates an HTTP client suitable for
connecting to the server identified by url and stores a pointer to
it in the location referenced by clientp.