Datacake - monitoring LoRaWAN GPS tracker - payload decoder extracts JSON values into Datacake fields

Datacake - monitoring LoRaWAN GPS tracker.js

// based on example from https://docs.datacake.de/integrations/webhook
// and https://docs.datacake.de/lorawan/payload-decoders/location-and-gps
// and https://docs.datacake.de/lorawan/converting-payload
//
// ==>webhook from Helium provides already the decoded JSON data!

function Decoder(bytes, port) {

    // Extract Serial for Routing into Device
    var device = rawPayload.dev_eui;
    
    // Load Data 
    var latitude = rawPayload.decoded.payload.latitude;
    var longitude = rawPayload.decoded.payload.longitude;
    var altitude = rawPayload.decoded.payload.altitude;
    var battery = rawPayload.decoded.payload.battery;
    var fcnt = rawPayload.fcnt;
    
    // Forward Data into Device using Serial
    return [
        {
            device: device,
            field: "LOCATION",
            value: "(" + latitude + "," + longitude + ")"
        },
        {
            device: device,
            field: "ALTITUDE",
            value: altitude
        },        
        {
            device: device,
            field: "BATTERY_VOLTAGE",
            value: battery
        },
        {
            device: device,
            field: "UPLINK_FRAME_COUNTER",
            value: fcnt
        },
    ];
}