return {
    on = {
        timer = { 'every 10 minutes' },
        httpResponses = { 'NBPEUR' }
    },
    execute = function(domoticz, item)
        if (item.isTimer) then
            domoticz.openURL({
                url = 'http://api.nbp.pl/api/exchangerates/rates/a/eur?format=json',
                method = 'GET',
                callback = 'NBPEUR'
            })
        end

        if (item.isHTTPResponse and item.ok) then
            domoticz.devices('Kurs EUR').updateCustomSensor(item.json.rates[1]['mid'])
        end
    end
}