TODO - add requirements

• npm install to install all packages in package.json.
• npm start to run the project.
• npm run dev-server to run with auto-restart.

• Install EMQX at https://www.emqx.io/downloads
• Prompt to EMQX Dashboard by default at:

  http://localhost:18083/

  Log in with default account:

  $ username = admin
  $ password = public

• TODO

• Provide the mongo uri fof the project. For example:

  mongodb://localhost:27017

$ MQTT_PROTOCOL # MQTT protocol such as mqtt, mqtts, ws, wss

• npm run dev-server to run with auto-restart.