public async Task <string> GetNodeVersion(string endpoint)
        {
            var result = await RpcCaller.MakeRPCCall <RPCResponseBody <RPCResponseVersion> >(endpoint, "getversion");

            return(result == null ? string.Empty : result.Result.Useragent);
        }
        private void HandleNewAddress(RPCPeer address, StateOfNeoContext db)
        {
            var    newNode    = default(Node);
            string successUrl = null;
            var    ports      = this.netSettings.GetPorts();

            foreach (var portWithType in ports)
            {
                var url = portWithType.GetFullUrl(address.Address.ToMatchedIp());

                try
                {
                    var rpcResult = RpcCaller.MakeRPCCall <RPCResponseBody <int> >(url, "getblockcount")
                                    .GetAwaiter()
                                    .GetResult();


                    if (rpcResult?.Result > 0)
                    {
                        successUrl = url;
                        newNode    = this.CreateNodeOfAddress(address.Address,
                                                              portWithType.Type,
                                                              successUrl,
                                                              NodeAddressType.RPC);
                        break;
                    }
                }
                catch (Exception e)
                {
                    Log.Error($"Get blockcount parse error {e.Message}", e);
                    break;
                }
            }

            if (newNode == default(Node))
            {
                var httpTypes = new string[] { "https", "http" };
                foreach (var httpType in httpTypes)
                {
                    var url            = $"{httpType}://{address.Address.ToMatchedIp()}";
                    var heightResponse = HttpRequester.MakeRestCall <HeightResponseObject>($@"{url}/api/main_net/v1/get_height", HttpMethod.Get)
                                         .GetAwaiter()
                                         .GetResult();

                    if (heightResponse != null)
                    {
                        successUrl = url;
                        newNode    = this.CreateNodeOfAddress(address.Address,
                                                              httpType,
                                                              successUrl,
                                                              NodeAddressType.REST,
                                                              NodeCallsConstants.NeoScan);
                        break;
                    }

                    var versionResponse = HttpRequester.MakeRestCall <NeoNotificationVersionResponse>($@"{url}/v1/version", HttpMethod.Get)
                                          .GetAwaiter()
                                          .GetResult();

                    if (versionResponse != null)
                    {
                        successUrl = url;
                        newNode    = this.CreateNodeOfAddress(address.Address,
                                                              httpType,
                                                              successUrl,
                                                              NodeAddressType.REST,
                                                              NodeCallsConstants.NeoNotification);
                        break;
                    }
                }
            }

            if (newNode != null)
            {
                var newNodeAddress = new NodeAddress
                {
                    Ip   = address.Address.ToMatchedIp(),
                    Node = newNode
                };

                var peer = db.Peers.FirstOrDefault(x => x.Ip == address.Address.ToMatchedIp());

                var result = LocationCaller.UpdateNode(newNode, newNodeAddress.Ip).GetAwaiter().GetResult();

                newNode.NodeAddresses.Add(newNodeAddress);

                db.NodeAddresses.Add(newNodeAddress);
                db.Nodes.Add(newNode);
                peer.Node = newNode;
                db.SaveChanges();
            }
        }