filtered_attributes publishes attributes with 'null' values

[silvanverschuur]

What happened

I'm trying to use the filtered_attributes option to remove attributes from the MQTT payload. The filtered attributes are not removed from the payload as described in the documentation but the values are replaced with null.

What did you expect to happen

I would like to have the attributes removed from the JSON payload instead of null values.

How to reproduce it (minimal and precise)

This is the configuration of one of my devices (devices.yaml):

'0x60a423fffe61d0f3':
  friendly_name: blitzwolf_bw_shp13_1
  filtered_attributes: ["power_outage_memory", "current", "voltage"]
  debounce: 1

MQTT log

zigbee2mqtt/blitzwolf_bw_shp13_1
{"current":null,"energy":1.91,"linkquality":69,"power":34,"power_outage_memory":null,"state":"ON","voltage":null}

zigbee2mqtt/z2m_router_1 {"led":null,"linkquality":72}

Debug info

Zigbee2MQTT version: 1.22.1

[sjorge]

@Koenkk not really sure how this can happen, as we unconditionally delete the attributes listed from the message?

zigbee2mqtt/lib/controller.ts

Lines 258 to 260 in c2b5229

	if (entity.settings.filtered_attributes) {
	entity.settings.filtered_attributes.forEach((a) => delete message[a]);
	}

I've never seen attributes with null value myself, they are either present and set or absent.

[Koenkk]

Should be fixed now.
Changes will be available in the dev branch in a few hours from now. (https://www.zigbee2mqtt.io/advanced/more/switch-to-dev-branch.html)

@sjorge the filtered attributes were put back in:

zigbee2mqtt/lib/extension/homeassistant.ts

Line 1297 in 48b790c

override adjustMessageBeforePublish(entity: Device | Group, message: KeyValue): void {

, fixed the ordering now.

[sjorge]

Aah that makes sense, as I don’t run the homeassistent extension I never ran into that.

[github-actions]

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[silvanverschuur]

I can confirm it works fine in stable version v1.22.2.