/// <summary>
/// Send a message to the QuantConnect Chart Streaming API.
/// </summary>
/// <param name="userId">User Id</param>
/// <param name="apiToken">API token for authentication</param>
/// <param name="packet">Packet to transmit</param>
public static void Transmit(int userId, string apiToken, Packet packet)
{
try
{
using (var client = new WebClient())
{
var tx = JsonConvert.SerializeObject(packet);
if (tx.Length > 10000)
{
Log.Trace("StreamingApi.Transmit(): Packet too long: " + packet.GetType());
}
var response = client.UploadValues("http://streaming.quantconnect.com", new NameValueCollection
{
{"uid", userId.ToString()},
{"token", apiToken},
{"tx", tx}
});
Log.Trace("StreamingApi.Transmit(): Sending Packet ({0})", packet.GetType());
//Deserialize the response from the streaming API and throw in error case.
var result = JsonConvert.DeserializeObject<Response>(System.Text.Encoding.UTF8.GetString(response));
if (result.Type == "error")
{
throw new Exception(result.Message);
}
}
}
catch (Exception err)
{
Log.Error(err);
}
}
/// <summary>
/// Send a message to the QuantConnect Chart Streaming API.
/// </summary>
/// <param name="userId">User Id</param>
/// <param name="apiToken">API token for authentication</param>
/// <param name="packet">Packet to transmit</param>
public static void Transmit(int userId, string apiToken, Packet packet)
{
try
{
var tx = JsonConvert.SerializeObject(packet);
if (tx.Length > 10000)
{
Log.Trace("StreamingApi.Transmit(): Packet too long: " + packet.GetType());
return;
}
if (userId == 0)
{
Log.Error("StreamingApi.Transmit(): UserId is not set. Check your config.json file 'job-user-id' property.");
return;
}
if (apiToken == "")
{
Log.Error("StreamingApi.Transmit(): API Access token not set. Check your config.json file 'api-access-token' property.");
return;
}
var request = new RestRequest();
request.AddParameter("uid", userId);
request.AddParameter("token", apiToken);
request.AddParameter("tx", tx);
Client.ExecuteAsyncPost(request, (response, handle) =>
{
try
{
var result = JsonConvert.DeserializeObject<Response>(response.Content);
if (result.Type == "error")
{
Log.Error(new Exception(result.Message), "PacketType: " + packet.Type);
}
}
catch
{
Log.Error("StreamingApi.Client.ExecuteAsyncPost(): Error deserializing JSON content.");
}
}, "POST");
}
catch (Exception err)
{
Log.Error(err, "PacketType: " + packet.Type);
}
}