Value API

The Z-Wave JS Value API, is very much used to drive User Interfaces (as such, is used on the UI tab).
You can however, still use it via a message only protocol.

It's a little more involved, and is generally not as straight forward to use. One benefit however, is that it confirms that Values are actually updated.

Important Note:
Values received from this API, are from a cache, and not directly from the device.
Of course the cache itself, is updated as and when Z-Wave devices send updates.

getDefinedValueIDs

Get the list of ValueIDs for a Node

let Message = {
    payload: {
        mode: "ValueAPI",
        node: 2,
        method: "getDefinedValueIDs",
    }
}
return Message

getValueMetadata

Get the metadata/structure of a Value

let Message = {
    payload: {
        mode: "ValueAPI",
        node: 2,
        method: "getValueMetadata",
        params: [<ValueID>]
    }
}
return Message

setValue

Sets a Value

let Message = {
    payload: {
        mode: "ValueAPI",
        node: 2,
        method: "setValue",
        params: [<ValueID>,<Value>]
    }
}
return Message

setValue (With options)

Sets a Value, whilst adding some behavioural properties to it

let Options = {
    transitionDuration:"1m10s", // Multilevel Switch
    volume: 30 // Sound Switch
}
let Message = {
    payload: {
        mode: "ValueAPI",
        node: 2,
        method: "setValue",
        params: [<ValueID>,<Value>,Options]
    }
}
return Message

getValue

Obtains a Value

let Message = {
    payload: {
        mode: "ValueAPI",
        node: 2,
        method: "getValue",
        params: [<ValueID>]
    }
}
return Message

pollValue

Poll the device, causing a Cached Value to be updated.

let Message = {
    payload: {
        mode: "ValueAPI",
        node: 2,
        method: "pollValue",
        params: [<ValueID>]
    }
}
return Message