I run the lora-gateway-bridge on my gateway and i send mqtt messages on the cloud at a specific port where my mosquitto mqtt broker listens to.
How could i check if these messages are subscribed into the broker?
Your question is not really clear to me if this is related to LoRa Gateway Bridge messages sent to the broker, or if you are trying to send message to the LoRa Gateway Bridge.
Anyway this might help:
- To see all MQTT messages subscribe to
#(wildcard for all topics) - If that doesn’t work, configure your MQTT broker so that it logs debug messages and check the logs