MQTT Queue-item expiration

ChirpStack (v4) Integrations
1

Hello,

Since Chirpstack v4.10.1, there is a new “Queue-item expiration” on the web interface to add a new message to the queue.
Is this field usable from MQTT downlink commands?

Thanks!

2

I too would be keen to know about this.

3

Or even a way to flush the queue via MQTT would be helpful.

4

There is a way to flush a device queue using the Chirpstack API.

We used the Protobuf API to send a downlink command with the expiration date field. Doing so makes us unable to use a custom UUID as it doesn’t work for some reason. But at least we can send an expiration date.

So either you send using MQTT but no expiration date, or you send using the API with an expiration date but no custom UUID