public async void Query(string database, string sql, ResultCallBack resultCallBack)
{
List <Serie> series = await _client.QueryAsync(database, sql);
string result = Newtonsoft.Json.JsonConvert.SerializeObject(series);
resultCallBack?.Invoke(result);
}
public async void GetDatabases(ResultCallBack resultCallBack)
{
List <Database> databases = await _client.ShowDatabasesAsync();
string result = Newtonsoft.Json.JsonConvert.SerializeObject(databases);
resultCallBack?.Invoke(result);
}