private string GetUrl(Operation function, Dictionary<string, string> options)
{
var sb = new StringBuilder();
sb.Append(Properties.Settings.Default.AlephServerUrl);
sb.Append(GetOperationPrefix(function));
foreach (var option in options)
{
sb.Append(string.Format("&{0}={1}", option.Key, option.Value));
}
return sb.ToString();
}