function getPrice(exchange, pair){
    
    var result = null

    if (exchange == 'polygon'){
        ret = HttpQuery("https://api.polygon.io/v1/last_quote/currencies/USD/BRL?&apiKey=csjY6ZuXAO41EZlGzTCPGJH_7YgkXwrB")
        Log("Polygon", ret)
        if (ret){
            parsed = JSON.parse(ret)
            Log("Parse", parsed)