Extract JSON data to sensor

dharvey24 · October 18, 2023, 11:24am

To say i’m lost is an understatement.

I have some JSON data which i believe is correctly formatted:

{
    "port": 1,
    "state": 1,
    "link_status": 6,
    "TxGoodPkt": 145382505,
    "TxBadPkt": 0,
    "RxGoodPkt": 354555444,
    "RxBadPkt": 0
  },
  {
    "port": 2,
    "state": 1,
    "link_status": 6,
    "TxGoodPkt": 141498890,
    "TxBadPkt": 0,
    "RxGoodPkt": 62863391,
    "RxBadPkt": 0
  },
  {
    "port": 3,
    "state": 1,
    "link_status": 0,
    "TxGoodPkt": 0,
    "TxBadPkt": 0,
    "RxGoodPkt": 0,
    "RxBadPkt": 0
  },
  {
    "port": 4,
    "state": 1,
    "link_status": 0,
    "TxGoodPkt": 0,
    "TxBadPkt": 0,
    "RxGoodPkt": 0,
    "RxBadPkt": 0
  },
  {
    "port": 5,
    "state": 1,
    "link_status": 0,
    "TxGoodPkt": 0,
    "TxBadPkt": 0,
    "RxGoodPkt": 0,
    "RxBadPkt": 0
  },
  {
    "port": 6,
    "state": 1,
    "link_status": 0,
    "TxGoodPkt": 0,
    "TxBadPkt": 0,
    "RxGoodPkt": 0,
    "RxBadPkt": 0
  },
  {
    "port": 7,
    "state": 1,
    "link_status": 6,
    "TxGoodPkt": 1090698305,
    "TxBadPkt": 0,
    "RxGoodPkt": 628825401,
    "RxBadPkt": 0
  },
  {
    "port": 8,
    "state": 1,
    "link_status": 6,
    "TxGoodPkt": 617099708,
    "TxBadPkt": 0,
    "RxGoodPkt": 915982349,
    "RxBadPkt": 0
  }
]

I would like to extract just the port 1, link status data to a sensor attribute.

I have so far:

 - platform: file
    file_path: /config/python_scripts/log10.json
    name: tplinkswitch
    value_template: '{{ value_json["1"][1]["link_status"]}}'

All help is appreciated.

malosaa · October 18, 2023, 11:48am

hmm, try this one:

sensor:
  - platform: rest
    resource: http://your-server/log10.json  # Replace with the correct URL
    name: tplinkswitch
    value_template: "{{ value_json[0].link_status }}"
    json_attributes:
      - port
      - state
      - link_status
      - TxGoodPkt
      - TxBadPkt
      - RxGoodPkt
      - RxBadPkt

the thing is u cant extract data from deep nested data, you need to create or work with template sensors.

regards

dharvey24 · October 18, 2023, 11:50am

many thanks

my json file is in the config/python_scripts folder - would that need to be moved to the www folder?

malosaa · October 18, 2023, 11:54am

yes, that should work.

i did that too with testing my json data retrieval.
should look like this:

http://your-server:8123/local/log10.json

dharvey24 · October 18, 2023, 12:32pm

worked a treat!! thanks

malosaa · October 18, 2023, 12:35pm

i’m glad i could help ^^

have a nice day !

dharvey24 · October 18, 2023, 12:56pm

one final question, what would I need to change in

value_template: "{{ value_json[0].link_status }}"

To get the data for port 2? I tried:

value_template: "{{ value_json[1].link_status }}"

But it returns the same information

Troon · October 18, 2023, 12:58pm

That will be fine if you can guarantee that the port 1 data is first in the list. If you can’t, use this:

    value_template: "{{ (value_json|selectattr('port','eq',1)|list|first)['link_status'] }}"

malosaa · October 18, 2023, 1:09pm

you can also do it very different, do you have the json information?
if u can post it here so i can create you what you need for all entities.

dharvey24 · October 18, 2023, 1:13pm

[{"port": 1, "state": 1, "link_status": 6, "TxGoodPkt": 145382505, "TxBadPkt": 0, "RxGoodPkt": 354555444, "RxBadPkt": 0}, {"port": 2, "state": 1, "link_status": 6, "TxGoodPkt": 141498890, "TxBadPkt": 0, "RxGoodPkt": 62863391, "RxBadPkt": 0}, {"port": 3, "state": 1, "link_status": 0, "TxGoodPkt": 0, "TxBadPkt": 0, "RxGoodPkt": 0, "RxBadPkt": 0}, {"port": 4, "state": 1, "link_status": 0, "TxGoodPkt": 0, "TxBadPkt": 0, "RxGoodPkt": 0, "RxBadPkt": 0}, {"port": 5, "state": 1, "link_status": 0, "TxGoodPkt": 0, "TxBadPkt": 0, "RxGoodPkt": 0, "RxBadPkt": 0}, {"port": 6, "state": 1, "link_status": 0, "TxGoodPkt": 0, "TxBadPkt": 0, "RxGoodPkt": 0, "RxBadPkt": 0}, {"port": 7, "state": 1, "link_status": 6, "TxGoodPkt": 1090698305, "TxBadPkt": 0, "RxGoodPkt": 628825401, "RxBadPkt": 0}, {"port": 8, "state": 1, "link_status": 6, "TxGoodPkt": 617099708, "TxBadPkt": 0, "RxGoodPkt": 915982349, "RxBadPkt": 0}]

dharvey24 · October 18, 2023, 1:16pm

just for context - the port 2 on the switch keeps defaulting to 100mf rather than 1000mf. I want to set up a notification for when it changes so i can try to understand what else is happening or has happened to cause it. Runs on 1000mf full duplex without issue for days and then randomly reverts to 100mf.

dharvey24 · October 18, 2023, 1:21pm

This provides the same data for each entity?

  - platform: rest
    resource: http://xxx.xxx.xxx.xxx:8123/local/log10.json
    name: tplinkswitch
    value_template: "{{ (value_json|selectattr('port','eq',1)|list|first)['link_status'] }}"
    json_attributes:
      - port
      - state
      - link_status
      - TxGoodPkt
      - TxBadPkt
      - RxGoodPkt
      - RxBadPkt
  - platform: rest
    resource: http://xxx.xxx.xxx.xxx:8123/local/log10.json
    name: tplinkswitch1
    value_template: "{{ (value_json|selectattr('port','eq',2)|list|first)['link_status'] }}"
    json_attributes:
      - port
      - state
      - link_status
      - TxGoodPkt
      - TxBadPkt
      - RxGoodPkt
      - RxBadPkt

dharvey24 · October 18, 2023, 1:22pm

malosaa · October 18, 2023, 1:23pm

U can try this

sensor:
  - platform: rest
    resource: http://your-server:8123/local/log10.json
    name: your_sensor_name
    json_attributes_path: "$[*]"
    json_attributes:
      - port
      - state
      - link_status
      - TxGoodPkt
      - TxBadPkt
      - RxGoodPkt
      - RxBadPkt

sensor:
  - platform: template
    sensors:
      port:
        value_template: "{{ state_attr('sensor.your_sensor_name', '0')['port'] }}"
      state:
        value_template: "{{ state_attr('sensor.your_sensor_name', '0')['state'] }}"
      link_status:
        value_template: "{{ state_attr('sensor.your_sensor_name', '0')['link_status'] }}"
      TxGoodPkt:
        value_template: "{{ state_attr('sensor.your_sensor_name', '0')['TxGoodPkt'] }}"
      TxBadPkt:
        value_template: "{{ state_attr('sensor.your_sensor_name', '0')['TxBadPkt'] }}"
      RxGoodPkt:
        value_template: "{{ state_attr('sensor.your_sensor_name', '0')['RxGoodPkt'] }}"
      RxBadPkt:
        value_template: "{{ state_attr('sensor.your_sensor_name', '0')['RxBadPkt'] }}"

or this one

sensor:
  - platform: rest
    resource: http://your-server:8123/local/log10.json
    name: your_sensor_name
    json_attributes:
      - port
      - state
      - link_status
      - TxGoodPkt
      - TxBadPkt
      - RxGoodPkt
      - RxBadPkt

sensor:
  - platform: template
    sensors:
      port:
        value_template: "{{ state_attr('sensor.your_sensor_name', 'port') }}"
      state:
        value_template: "{{ state_attr('sensor.your_sensor_name', 'state') }}"
      link_status:
        value_template: "{{ state_attr('sensor.your_sensor_name', 'link_status') }}"
      TxGoodPkt:
        value_template: "{{ state_attr('sensor.your_sensor_name', 'TxGoodPkt') }}"
      TxBadPkt:
        value_template: "{{ state_attr('sensor.your_sensor_name', 'TxBadPkt') }}"
      RxGoodPkt:
        value_template: "{{ state_attr('sensor.your_sensor_name', 'RxGoodPkt') }}"
      RxBadPkt:
        value_template: "{{ state_attr('sensor.your_sensor_name', 'RxBadPkt') }}"

i will check your question after this works

malosaa · October 18, 2023, 1:26pm

here the automation:

automation:
  - alias: Notify Port Speed Change
    initial_state: true
    trigger:
      - platform: state
        entity_id: sensor.your_switch_port_speed  # Replace with your actual sensor e.g. the template sensor we just created.
    condition:
      - condition: template
        value_template: "{{ trigger.to_state.state != trigger.from_state.state }}"
      - condition: template
        value_template: "{{ trigger.to_state.state == '100MF' }}"
    action:
      - service: notify.notify  # Replace with your preferred notification service
        data:
          message: "Port speed changed to 100MF."

  - alias: Reset Port Speed Change Notification
    initial_state: true
    trigger:
      - platform: state
        entity_id: sensor.your_switch_port_speed  # Replace with your actual sensor
    condition:
      - condition: template
        value_template: "{{ trigger.to_state.state == '1000MF' }}"
    action:
      - service: notify.notify  # Replace with your preferred notification service
        data:
          message: "Port speed reverted to 1000MF."

dharvey24 · October 18, 2023, 1:44pm

This fails. State unknown. Log suggests the sensor is limited to 255 characters.

  - platform: rest
    resource: http://192.168.1.37:8123/local/log10.json
    name: tplinkswitch
    json_attributes_path: "$[*]"
    json_attributes:
      - port
      - state
      - link_status
      - TxGoodPkt
      - TxBadPkt
      - RxGoodPkt
      - RxBadPkt
  - platform: template
    sensors:
      port:
        value_template: "{{ state_attr('sensor.tplinkswitch', '0')['port'] }}"
      state:
        value_template: "{{ state_attr('sensor.tplinkswitch', '0')['state'] }}"
      link_status:
        value_template: "{{ state_attr('sensor.tplinkswitch', '0')['link_status'] }}"
      TxGoodPkt:
        value_template: "{{ state_attr('sensor.tplinkswitch', '0')['TxGoodPkt'] }}"
      TxBadPkt:
        value_template: "{{ state_attr('sensor.tplinkswitch', '0')['TxBadPkt'] }}"
      RxGoodPkt:
        value_template: "{{ state_attr('sensor.tplinkswitch', '0')['RxGoodPkt'] }}"
      RxBadPkt:
        value_template: "{{ state_attr('sensor.tplinkswitch', '0')['RxBadPkt'] }}"
  - platform: rest
    resource: http://192.168.1.37:8123/local/log10.json
    name: tplinkswitch1
    json_attributes_path: "$[*]"
    json_attributes:
      - port
      - state
      - link_status
      - TxGoodPkt
      - TxBadPkt
      - RxGoodPkt
      - RxBadPkt
  - platform: template
    sensors:
      port:
        value_template: "{{ state_attr('sensor.tplinkswitch1', '1')['port'] }}"
      state:
        value_template: "{{ state_attr('sensor.tplinkswitch1', '1')['state'] }}"
      link_status:
        value_template: "{{ state_attr('sensor.tplinkswitc1h', '1')['link_status'] }}"
      TxGoodPkt:
        value_template: "{{ state_attr('sensor.tplinkswitch1', '1')['TxGoodPkt'] }}"
      TxBadPkt:
        value_template: "{{ state_attr('sensor.tplinkswitch1', '1')['TxBadPkt'] }}"
      RxGoodPkt:
        value_template: "{{ state_attr('sensor.tplinkswitch1', '1')['RxGoodPkt'] }}"
      RxBadPkt:
        value_template: "{{ state_attr('sensor.tplinkswitch1', '1')['RxBadPkt'] }}"

malosaa · October 18, 2023, 1:49pm

ok i will try now with your json.

i will post the full working code.

Troon · October 18, 2023, 2:00pm

You need to add a value_template to the rest sensor, otherwise its state is the complete response. Something like:

value_template: "OK"

Troon · October 18, 2023, 2:02pm

malosaa:

automation:
  - alias: Notify Port Speed Change
    initial_state: true
    trigger:
      - platform: state
        entity_id: sensor.your_switch_port_speed  # Replace with your actual sensor e.g. the template sensor we just created.
    condition:
      - condition: template
        value_template: "{{ trigger.to_state.state != trigger.from_state.state }}"
      - condition: template
        value_template: "{{ trigger.to_state.state == '100MF' }}"

Why not just:

automation:
  - alias: Notify Port Speed Change
    initial_state: true
    trigger:
      - platform: state
        entity_id: sensor.your_switch_port_speed  # Replace with your actual sensor e.g. the template 
        to: "100MF"

Avoids two unnecessary template conditions. You’re not using AI to generate these responses are you?

malosaa · October 18, 2023, 2:05pm

No i’m not.
this is how i setup my automations all the time, i just copy pasted mine and edited it.
why u ask ?

there are so many ways just to create an automation, it just depends how you like it…