@Emil I use the MQTT publisher from https://github.com/id628/flic2hass. It constantly writes to console following error:
Error: Crashed
at <anonymous> (root/MQTT/main.js:226)
at runNextTimeout (core.js:964)
and the underlying exception is:
TypeError: class constructors must be invoked with 'new'
at Socket (core.js:1158)
at <anonymous> (root/MQTT/mqtt.js:418)
at <anonymous> (root/MQTT/main.js:230)
at require (core.js:2895)
at requireMain (core.js:2903)
at handlePacket (core.js:2937)
at onPipeData (core.js:2974)
It seem the line 418 in mqtt.js:
client = require("net").Socket().connect({ host: mqo.server, port: mqo.port }, onConnect);
has to be changed to:
const net = require("net")
...
client = new net.Socket().connect({ host: mqo.server, port: mqo.port }, onConnect);