Pimatic devices / variables and curl

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Hi everybody,

I would like to fetch some information from my NAS and put this information into pimatic.
I plan to push those information from the NAS via cronjob and curl -X PATCH …

What’s the best way to do this?

1. First I thought I just add 4 devices (2x HDD temp, 1x CPU usage, 1x volume usage) and them update this information via curl.
   –> Here I don’t know how to do this
2. The probably better (?) solution might be (if possible) to add one device, and add variables to this device (hdd1,hdd2,cpu,volume) and update those variables. Here I should only have one device, which is might be clearer.
   –> Again, here I don’t know if this is possible and a good way. AND I don’t know how to update them via curl

I tried to build 2, bit don’t get this working:

    {
      "variables": [
        {
          "name": "temp",
          "expression": "$value",
          "type": "number",
          "unit": "C"
        }
      ],
      "xAttributeOptions": [],
      "id": "ds211j-flur-hdd1",
      "name": "DS211j_Flur_HDD1",
      "class": "VariablesDevice"
    },

curl -X GET --user "user:pass!" http://pimatic/api/devices/ds211j-flur-hdd1 | python -m json.tool

{
    "device": {
        "actions": [],
        "attributes": [
            {
                "description": "temp",
                "discrete": false,
                "history": [],
                "label": "$temp",
                "name": "temp",
                "type": "number",
                "unit": "C",
                "value": null
            }
        ],
        "config": {
            "class": "VariablesDevice",
            "id": "ds211j-flur-hdd1",
            "name": "DS211j_Flur_HDD1",
            "variables": [
                {
                    "expression": "$value",
                    "name": "temp",
                    "type": "number",
                    "unit": "C"
                }
            ],
            "xAttributeOptions": []
        },
        "configDefaults": {
            "variables": []
        },
        "id": "ds211j-flur-hdd1",
        "name": "DS211j_Flur_HDD1",
        "template": "device"
    },
    "success": true
}

If this config is already correct, how to patch this value with curl and why I don’t see something like $DS211j_Flur_HDD1.temp within the variables site?

I really appreciate your help.

Thanks in advance!

Figured out that the variables are displayed after restarting pimatic.

Can someone tell me why this didn’t work?

curl   -X GET   --header "Content-Type:application/json"   --data '{"type": "value", "valueOrExpression": 1337}'   --user "user:pass"   http://pimatic/api/variables/ds211jflur.hdd1
{"variable":{"name":"ds211jflur.hdd1","readonly":true,"type":"attribute","value":null,"unit":"°C"},"success":true}

curl   -X PATCH   --header "Content-Type:application/json"   --data '{"type": "value", "valueOrExpression": 1337}'   --user "user:pass"   http://pimatic/api/variables/ds211jflur.hdd1
{"success":false,"message":"Variable name must only contain alpha numerical symbols, \"-\" and  \"_\""}

Check out a bash script I made, just search the forum on Symbology!

Well, it says "readonly": true, maybe thats why you can read but can’t set?

edit: quick forum search:
you have to use actions, but as far as I can see in the source code there are no actions assigned to VariablesDevice.

See https://forum.pimatic.org/topic/2134/values-from-synology

I read the topic before opening this one.
I actually don’t wont a device for each value.
What I would like to have is, one device with e.g. four atttibutes. So that one device is showing up in the frontend with four values.

E.g.:
Device
Temp1
Temp2
Usage
Load

How to manage this?