private void ConnectWebSocketEndpoint <T>(Uri endpoint, WebSocketMessageHandler <T> messageHandler, ResponseParseHandler <T> customParseHandler = null) where T : WebSocketMessageBase
{
var ws = CreateNewWebSocket(endpoint);
ws.OnMessage += (sender, e) =>
{
logger.Debug("Msg: " + e.Data);
var eventData = customParseHandler == null?
JsonConvert.DeserializeObject <T>(e.Data) :
customParseHandler(e.Data);
messageHandler(eventData);
};
ws.Connect();
ActiveSockets.Add(ws);
}
protected async Task <T> SendRequest <T>(string methodName, string version, ApiMethodType apiMethod, HttpMethod httpMethod,
Dictionary <string, string> parameters = null, ResponseParseHandler <T> customHandler = null)
{
if ((apiMethod == ApiMethodType.ApiKey && string.IsNullOrEmpty(_apiKey)) ||
(apiMethod == ApiMethodType.Signed &&
(string.IsNullOrEmpty(_apiKey) || string.IsNullOrEmpty(_apiSecret))))
{
throw new Exception("You have to instantiate client with proper keys in order to make ApiKey or Signed API requests!");
}
if (parameters == null)
{
parameters = new Dictionary <string, string>();
}
if (apiMethod == ApiMethodType.Signed)
{
var timestamp = Util.GetCurrentMilliseconds();
parameters.Add("timestamp", timestamp.ToString(CultureInfo.InvariantCulture));
var parameterTextForSignature = GetParameterText(parameters);
var signedBytes = Util.Sign(_apiSecret, parameterTextForSignature);
parameters.Add("signature", Util.GetHexString(signedBytes));
}
var parameterTextPrefix = parameters.Count > 0 ? "?" : string.Empty;
var parameterText = GetParameterText(parameters);
string response;
using (var client = new WebClient())
{
if (apiMethod == ApiMethodType.Signed || apiMethod == ApiMethodType.ApiKey)
{
client.Headers.Add("X-MBX-APIKEY", _apiKey);
}
try
{
var getRequestUrl = $"{BaseUrl}/{version}/{methodName}{parameterTextPrefix}{parameterText}";
var postRequestUrl = $"{BaseUrl}/{version}/{methodName}";
response = httpMethod == HttpMethod.Get ?
await client.DownloadStringTaskAsync(getRequestUrl) :
await client.UploadStringTaskAsync(postRequestUrl, httpMethod.Method, parameterText);
}
catch (WebException webException)
{
using (var reader = new StreamReader(webException.Response.GetResponseStream(), Encoding.UTF8))
{
var errorObject = JObject.Parse(reader.ReadToEnd());
var errorCode = (int)errorObject["code"];
var errorMessage = (string)errorObject["msg"];
throw new Exception($"{errorCode}{errorMessage}");
}
}
}
return(customHandler != null?customHandler(response) : JsonConvert.DeserializeObject <T>(response));
}
