public IActionResult Get([FromRoute] string address)
        {
            RestClient client = node.CreateClient();

            // Get the identity, if it exists.
            var request = new RestRequest($"/identity/{address}");
            IRestResponse <string> response = client.Get <string>(request);

            //if (response.StatusCode != System.Net.HttpStatusCode.OK)
            //{
            //   throw new ApplicationException(response.ErrorMessage);
            //}

            return(Ok(response.Content));
        }