Hello All,
I am trying to publish the data gathered from UART using MQTT. So far I was able to get serial data in the inData buffer. I am not able to publish data automatically as soon as data is received on serial port. Can some one please help me out with the same. I would really appreciate it.
void mqtt_evt_handler(struct mqtt_client *const c,
const struct mqtt_evt *evt)
{
int err;
switch (evt->type) {
case MQTT_EVT_CONNACK:
if (evt->result != 0) {
printk("MQTT connect failed %d\n", evt->result);
break;
}
connected = true;
printk("[%s:%d] MQTT client connected!\n", __func__, __LINE__);
subscribe();
break;
case MQTT_EVT_DISCONNECT:
printk("[%s:%d] MQTT client disconnected %d\n", __func__,
__LINE__, evt->result);
connected = false;
break;
case MQTT_EVT_PUBLISH: {
const struct mqtt_publish_param *p = &evt->param.publish;
printk("[%s:%d] MQTT PUBLISH result=%d len=%d\n", __func__,
__LINE__, evt->result, p->message.payload.len);
err = publish_get_payload(c, p->message.payload.len);
if (err >= 0) {
data_print("Received: ", inData,
sizeof(inData));
/* Echo back received data */
data_publish(&client, MQTT_QOS_1_AT_LEAST_ONCE,
inData, sizeof(inData));
} else {
printk("mqtt_read_publish_payload: Failed! %d\n", err);
printk("Disconnecting MQTT client...\n");
err = mqtt_disconnect(c);
if (err) {
printk("Could not disconnect: %d\n", err);
}
}
} break;
case MQTT_EVT_PUBACK:
if (evt->result != 0) {
printk("MQTT PUBACK error %d\n", evt->result);
break;
}
printk("[%s:%d] PUBACK packet id: %u\n", __func__, __LINE__,
evt->param.puback.message_id);
break;
case MQTT_EVT_SUBACK:
if (evt->result != 0) {
printk("MQTT SUBACK error %d\n", evt->result);
break;
}
printk("[%s:%d] SUBACK packet id: %u\n", __func__, __LINE__,
evt->param.suback.message_id);
break;
default:
printk("[%s:%d] default: %d\n", __func__, __LINE__,
evt->type);
break;
}
}
