Use nodered to set shelly 2.5 position

flow.json

[
    {
        "id": "c683382b.22b6d",
        "type": "api-call-service",
        "z": "645063bf.d45e6c",
        "name": "zet positie",
        "server": "44c0c9a9.f23da8",
        "version": 1,
        "debugenabled": false,
        "service_domain": "cover",
        "service": "set_cover_position",
        "entityId": "cover.rolluik_dakraam_eetkamer",
        "data": "{\"position\":msg.positie}",
        "dataType": "jsonata",
        "mergecontext": "",
        "output_location": "",
        "output_location_type": "none",
        "mustacheAltTags": false,
        "x": 520,
        "y": 1880,
        "wires": [
            []
        ]
    },
    {
        "id": "9de150f7.39181",
        "type": "server-state-changed",
        "z": "645063bf.d45e6c",
        "name": "dakraam eetkamer",
        "server": "44c0c9a9.f23da8",
        "version": 1,
        "exposeToHomeAssistant": false,
        "haConfig": [
            {
                "property": "name",
                "value": ""
            },
            {
                "property": "icon",
                "value": ""
            }
        ],
        "entityidfilter": "input_number.hitteschild_rolluik_dakraam_eetkamer",
        "entityidfiltertype": "exact",
        "outputinitially": false,
        "state_type": "num",
        "haltifstate": "",
        "halt_if_type": "str",
        "halt_if_compare": "is",
        "outputs": 1,
        "output_only_on_state_change": true,
        "for": 0,
        "forType": "num",
        "forUnits": "minutes",
        "ignorePrevStateNull": false,
        "ignorePrevStateUnknown": false,
        "ignorePrevStateUnavailable": false,
        "ignoreCurrentStateUnknown": false,
        "ignoreCurrentStateUnavailable": false,
        "x": 150,
        "y": 1880,
        "wires": [
            [
                "c683382b.22b6d"
            ]
        ]
    },
    {
        "id": "44c0c9a9.f23da8",
        "type": "server",
        "name": "Home Assistant",
        "legacy": false,
        "addon": false,
        "rejectUnauthorizedCerts": true,
        "ha_boolean": "y|yes|true|on|home|open",
        "connectionDelay": true,
        "cacheJson": true
    }
]