MQTT Client app

[admin]

For a single value use this script.

Code:

return json.encode({
  ts = os.time() * 1000,
  values = {
    key1 = value
  }
})

For multiple values grp.getvalue() can be used but the you need a separate topic entry and script for all values in the same payload:

Code:

return json.encode({
  ts = os.time() * 1000,
  values = {
    key1 = value,
    key2 = grp.getvalue('0/0/3'),
  }
})