en/latest/mqtt_8hpp_source.html

 #ifndef _MQTT_UTIL_H_
 #define _MQTT_UTIL_H_

 #include "mgos.h"
 #include "mgos_mqtt.h"

 void sub(struct mg_connection *c, const char *fmt, ...);
 void pub(struct mg_connection *c, const char *pubTopic, const char *fmt, ...);

 #endif

pub
void pub(struct mg_connection *mgConnection, const char *pubTopic, const char *fmt,...)
used for publishing to a specific channel of the mqtt server
Definition: mqtt.cpp:61

sub
void sub(struct mg_connection *mgConnection, const char *fmt,...)
function used for subscribing to mqtt channels, has variable arguments support
Definition: mqtt.cpp:36