json_query not working in mqtt consumer

[bnjroos]

Relevant telegraf.conf:

[[inputs.mqtt_consumer]]
  servers = ["tcp://mqtt-broker:1883"]
  qos = 0
  ## Topics to subscribe to
  topics = [
    "meters/#",
  ]

  persistent_session = false
  client_id = ""
  username = ""
  password = ""
  data_format = "json"
  name_override = "energy"
  tag_keys = ["meter"]
  taginclude = ["meter"]
  json_query = "meters"

System info:

Ubuntu telegraf 1.11

Steps to reproduce:

Writting to topic "meters/DB1" the following payload:
'{"meters":[{"meter":"PPAC3_1In","E":144.1158}],"date":"2019-07-19-14:57:54"}'

Expected behavior:

The parser is parsing the subquery:
[{"meter":"PPAC3_1In","E":144.1158}]

Actual behavior:

Getting the following error from Telegraf:
E! [inputs.mqtt_consumer]: Error in plugin: E! Query path must lead to a JSON object or array of objects, but lead to: Null

[danielnelson]

@bnjroos I'm not able to replicate, when I send a message with:

mosquitto_pub -t 'telegraf' -m '{"meters":[{"meter":"PPAC3_1In","E":144.1158}],"date":"2019-07-19-14:57:54"}'

Telegraf produces a metric like:

energy,meter=PPAC3_1In E=144.1158 1563839040675979568

I'm testing with Telegraf 1.11.2 and I don't see this error, but this code does have an upcoming modification for 1.11.3 (#6125). Can you retest with 1.11.2 and the command above and let me know if you still see the error?