static esp_err_t mqtt_event_handler(esp_mqtt_event_handle_t event) { esp_mqtt_client_handle_t client = event->client; int msg_id; // your_context_t *context = event->context; switch (event->event_id) { case MQTT_EVENT_CONNECTED: ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED"); msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0); ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id); msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1); ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id); msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1"); ESP_LOGI(TAG, "sent unsubscribe successful, msg_id=%d", msg_id); break; case MQTT_EVENT_DISCONNECTED: ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED"); break; case MQTT_EVENT_SUBSCRIBED: ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id); msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0); ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id); break; case MQTT_EVENT_UNSUBSCRIBED: ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id); break; case MQTT_EVENT_PUBLISHED: ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id); break; case MQTT_EVENT_DATA: ESP_LOGI(TAG, "MQTT_EVENT_DATA"); printf("TOPIC=%.*s\r\n", event->topic_len, event->topic); printf("DATA=%.*s\r\n", event->data_len, event->data); break; case MQTT_EVENT_ERROR: ESP_LOGI(TAG, "MQTT_EVENT_ERROR"); break; default: ESP_LOGI(TAG, "Other event id:%d", event->event_id); break; } return ESP_OK; }
void Subscription::raw_subscribe() { ESP_LOGI(mqtt_tag, "Subscribing to %s", topic.data()); esp_mqtt_client_subscribe(mqtt_handler.mqtt_handle, topic.data(), qos); }