Trouble getting this to work with homepage

[jamiesmith]

Hi- I've got nutcase talking to my nut server but all of the values on homepage are invalid/null:

curl --silent "http://<docker-host>:9995/json?target=<nutmon-host>:3493" | jq .

{
  "server_version": "2.7.4",
  "server_address": "<redacted>",
  "server_port": 3493,
  "cyberpower-rack": {
    "description": "Rack UPS",
    "battery.charge": "100",
    "battery.charge.low": "10",
    "battery.charge.warning": "20",
    "battery.mfr.date": "CPS",
    "battery.runtime": "3800",
    "battery.runtime.low": "300",
    "battery.type": "PbAcid",
    "battery.voltage": "26.7",
    "battery.voltage.nominal": "24",
    "device.mfr": "CPS",
    "device.model": "CST1500SUC",
    "device.type": "ups",
    "driver.name": "usbhid-ups",
    "driver.parameter.bus": "001",
    "driver.parameter.pollfreq": "30",
    "driver.parameter.pollinterval": "15",
    "driver.parameter.port": "auto",
    "driver.parameter.productid": "0601",
    "driver.parameter.synchronous": "no",
    "driver.parameter.vendorid": "0764",
    "driver.version": "2.7.4",
    "driver.version.data": "CyberPower HID 0.4",
    "driver.version.internal": "0.41",
    "input.voltage": "120.0",
    "input.voltage.nominal": "120",
    "output.voltage": "120.0",
    "ups.beeper.status": "enabled",
    "ups.delay.shutdown": "20",
    "ups.delay.start": "30",
    "ups.load": "10",
    "ups.mfr": "CPS",
    "ups.model": "CST1500SUC",
    "ups.productid": "0601",
    "ups.realpower.nominal": "900",
    "ups.status": "OL",
    "ups.test.result": "No test initiated",
    "ups.timer.shutdown": "-60",
    "ups.timer.start": "-60",
    "ups.vendorid": "0764",
    "clients": {
      "count": 0,
      "list": []
    }
  },
  "apc-corner-cabinet": {
    "description": "APC 1500",
    "battery.charge": "100",
    "battery.charge.low": "10",
    "battery.charge.warning": "50",
    "battery.runtime": "1269",
    "battery.runtime.low": "150",
    "battery.type": "PbAc",
    "battery.voltage": "25.9",
    "battery.voltage.nominal": "24.0",
    "device.mfr": "American Power Conversion ",
    "device.model": "Smart-UPS_1500",
    "device.type": "ups",
    "driver.name": "usbhid-ups",
    "driver.parameter.bus": "001",
    "driver.parameter.pollfreq": "30",
    "driver.parameter.pollinterval": "1",
    "driver.parameter.port": "auto",
    "driver.parameter.productid": "0003",
    "driver.parameter.synchronous": "no",
    "driver.parameter.vendorid": "051D",
    "driver.version": "2.7.4",
    "driver.version.data": "APC HID 0.96",
    "driver.version.internal": "0.41",
    "ups.beeper.status": "disabled",
    "ups.delay.shutdown": "20",
    "ups.firmware": "UPS 04.1 / ID=1018",
    "ups.mfr": "American Power Conversion ",
    "ups.mfr.date": "2021/02/20",
    "ups.model": "Smart-UPS_1500",
    "ups.productid": "0003",
    "ups.status": "OL",
    "ups.timer.reboot": "-1",
    "ups.timer.shutdown": "-1",
    "ups.vendorid": "051d",
    "clients": {
      "count": 0,
      "list": []
    }
  }
}

How do I tell it which UPS to select?
Even when there's just one UPS it's still nested a level- from a different NUT server, with one UPS (trimmed down):

{
  "server_version": "2.7.4",
  "server_address": "<redacted>",
  "server_port": 3493,
  "cyberpower-closet": {
    "description": "Wiring Closet UPS",
    "battery.charge": "100",
    "battery.charge.low": "10",
    "battery.charge.warning": "20",
...
    "ups.timer.shutdown": "-60",
    "ups.timer.start": "-60",
    "ups.vendorid": "0764",
    "clients": {
      "count": 0,
      "list": []
    }
  }
}

The homepage service config looks like this:

    - UPS Mon:
        icon: ups.png
        href: "http://batmon/cgi-bin/nut/upsstats.cgi"
        description: UPS Monitor
        widget:
          type: customapi
          url: http://<dockerhost>:9995/json?target=<NUT server>:3493
          refreshInterval: 60000 # In milliseconds, set to ~60s
          method: GET
          mappings:
              - field: 
                  ups:
                    input.voltage
                label: Input
                format: text
                suffix: V
              - field: 
                  ups: battery.runtime
                label: Runtime
                format: float
                scale: 1/60
                suffix: Min
              - field: 
                  ups:
                    ups.load
                label: Power
                format: text
                suffix: "%"
              - field: 
                  ups:
                    ups.status
                label: Status
                format: text
                remap:
                  - value: "OL"
                    to: On-Line
                  - value: "OB"
                    to: Discharge

If I tail the logs for NUTcase I can see the queries flowing through.

2024-01-16 12:40:10,786 INFO     http_server: 192.168.112.1 - - [16/Jan/2024 12:40:10] "GET /json?target=<nut server>:3493 HTTP/1.1" 200 -

Any idea what I'm missing? Thanks

[ArthurMitchell42]

Hello Jamie,
What you're seeing here is an issue of the customapi widget in HomePage.
Their website has a nice worked example of how to navigate JSON to display the items you want. In this case after your field statements you will need to put your UPS device name next rather than the example data for a Synology UPS server (ups). I suggest you might want to try:

              - field: 
                  cyberpower-rack:
                    input.voltage
                label: Input
                format: text
                suffix: V
              - field: 
                  cyberpower-rack: battery.runtime
                label: Runtime
                format: float
                scale: 1/60
                suffix: Min

          mappings:
              - field: 
                  apc-corner-cabinet:
                    input.voltage
                label: Input
                format: text
                suffix: V
              - field: 
                  apc-corner-cabinet: battery.runtime
                label: Runtime
                format: float
                scale: 1/60
                suffix: Min

[jamiesmith]

Brilliant! I figured it was something easy. Thanks!

[ArthurMitchell42]

Glad to help, don't forget the rework function can format those times for you.
If you fancy trying the beta version 0.3.0 I'm introducing a GUI #19 which gives another option for seeing the data.