Get kolonial product

GetKolonialProductAsync.csx

public static async Task<KolonialProduct> GetKolonialProductAsync(HttpClient client, string barcode)
{
    var httpResult = await client.GetAsync(ConfigurationManager.AppSettings["GetKolonialProductUri"] + "&barcode=" + barcode);
    if (httpResult.IsSuccessStatusCode)
    {
        var json = await httpResult.Content.ReadAsStringAsync();
        if (json != null)
            return JsonConvert.DeserializeObject<KolonialProduct>(json);
    }
    return null;
}