Test application. It connects to opcua-server, get some data, send them to MySQL DB and publish to MQTT broker RabbitMQ.
$ https://github.com/inkerinmaa/opcclient.git
$ cd cd opcclient
$ npm init S
$ npm i
$ # configure db.config.js - you need to fill in db credentials and MQTT BrokerS
$ npm run start
$ or docker-compose -f docker-compose.yml up -d --build