I'm working on a personal project (more information will be shared about this later) that needs Message Queue Telemetry Transport (MQTT). While searching for LabVIEW libraries for MQTT I found 1 on VIPM, 2 in the NI Forums, and 1 through Goggle on GitHub, as follows:
WireQueue-MQTT Driver for LabVIEW by WireFlow AB (this one costs $550)
MQTT Client API in native LabVIEW by Peter - daq.io (also on GitHub as LVMQTT)
MQTT-LabVIEW by Michal Radziwon
Quaxo MQTT LabVIEW by Stefan May
This is not unusual for just about anything you might be looking for. In fact searching on GitHub there are 13 results for LabVIEW+MQTT. What was weird is that two of them were almost completely the same, yet neither attribute the other. I don't know which came first. I ended up forking from one of them but I guess I'll attribute both to be safe if I end up using it.
However, talking about code confidence, I just found this one: LV-MQTT-Broker by @Francois Normandin. I know Francois, he is a LabVIEW Champion. He has included unit tests. It has full documentation as well as an NIWeek presentation by him and Sarah Zalusky, both of whom are Certified LabVIEW Architects (CLAs). From GitHub I can see he has been actively contributing to it and its open source (which most of them were). Honestly, I wish I had found this one first.
Just some words for thought...