onMessage about arduinomqttclient HOT 2 CLOSED

// File main.ino
#include <WiFi.h>
#include <ArduinoMqttClient.h>

// WIFI
WiFiClient wifiClient;
const char *ssid = "WIFI_SSID";         // WiFi ssid
const char *password = "WIFI_PASSWORD"; // WiFi password

// MQTT
MqttClient mqttClient(wifiClient);
const char mqtt_username[] = "MQTT_USERNAME";
const char mqtt_password[] = "MQTT_PASSWORD";
char mqtt_client_id[] = "MQTT_CLIENT_ID";
const char mqtt_broker_url[] = "MQTT_BROKER_URL";
int mqtt_broker_port = "MQTT_BROKER_PORT";

void setupWifi()
{
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED)
  {
    delay(1000);
    Serial.println("Connecting to WiFi ...");
  }

  Serial.println("WiFi connected");
  Serial.println("IP address set: ");
  Serial.println(WiFi.localIP());
  Serial.println("[wifi] is ok");
}

void setupMqtt()
{
  mqttClient.setId(mqtt_client_id);
  mqttClient.setUsernamePassword(mqtt_username, mqtt_password);
  while (!mqttClient.connect(mqtt_broker_url, mqtt_broker_port))
  {
     delay(1000);
     Serial.print("[mqtt] connection failed! Error code = ");
     Serial.println(mqttClient.connectError());
  }
  Serial.println("[mqtt] is ok");
}

void setup()
{
 setupWifi();
 setupMqtt();
}

void loop()
{
  // To avoid being disconnected by the broker and keep the
  // connection alive
  mqttClient.poll();
  mqttClient.beginMessage("topic");
  mqttClient.print("your_msg");
  mqttClient.endMessage();
  delay(2000);
}