TD Ameritrade .NET

Question

有没有人让TD美国流媒体API与C#一起工作？这里有一些文档和JavaScript示例，https://developer.tdameritrade.com/content/streaming-data。我已经让JavaScript示例在https://js.do/上工作，但是无法获得任何类似于在.NET中工作的东西，这是我想要做的一个简短的版本。我不能确切地包括我发送的内容，因为我试图发送包含帐户信息的登录消息，但我可以说，我复制并粘贴了在我的JavaScript测试中工作的确切JSON消息到本例中的文件LoginJSON.txt中。在本例中，套接字将在我发送消息后立即关闭，根本没有文本响应。但是，如果我发送一条故意设置错误格式的消息，我实际上会得到文本响应，表示消息格式不正确，然后得到一个套接字断开连接。他们的支持一直没有反应，我理解这是正常的。这里有一些python示例，https://www.youtube.com/channel/UCBsTB02yO0QGwtlfiv5m25Q，但是我已经看过它们了，但是我还没有学到任何东西来帮助我的代码工作。

        ClientWebSocket socket = new ClientWebSocket();
        var connectAsync = socket.ConnectAsync(new Uri("wss://streamer-ws.tdameritrade.com/ws"), CancellationToken.None);
        string loginRequest;
        using (StreamReader re = new StreamReader("LoginJSON.txt")) {
            loginRequest = re.ReadToEnd();
        }

        connectAsync.Wait();

        Thread readThread = new Thread(
            delegate(object obj)
            {
                while (true) {
                    if (socket.State == WebSocketState.Open) {
                        Console.Out.WriteLine("Waiting");
                        byte[] recBytes = new byte[1024];
                        var clientBuffer = new ArraySegment<byte>(recBytes);
                        var receiveAsync = socket.ReceiveAsync(clientBuffer, CancellationToken.None);
                        receiveAsync.Wait();
                        switch (receiveAsync.Result.MessageType) {
                            case WebSocketMessageType.Text:
                                var s = Encoding.UTF8.GetString(recBytes);
                                Console.Out.WriteLine(s.Trim());
                                break;
                            case WebSocketMessageType.Close:
                                Console.Out.WriteLine("Close message received");
                                break;
                            default:
                                throw new ArgumentOutOfRangeException();
                        }
                    }
                }
            });

        readThread.Start();
        socket.SendAsync(Encoding.UTF8.GetBytes(loginRequest), WebSocketMessageType.Text, true, CancellationToken.None);
        Console.ReadLine();

Answer 1

我尝试了WebSocketClient方法，但始终没有成功。我和你犯的错误完全一样。一点儿没错。我发现WebSocketClient实际上使在javascript中实现非常简单的内容变得复杂。只需让您的C#调用一个javascript函数来执行javascript并将响应发送回您。我已经让它的工作方式，使用C#在一个Blazor应用程序，它的无缝工作。

Answer 2

我面临着同样的问题，我设法解决了这个问题。在我的示例中，时间戳没有正确准备，因此需要计算时间戳才能得到TokenTimestamp属性，应该将其转换为通用时间。抱歉，我的英语来自谷歌翻译公司。)这是正确的代码：

DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
DateTime tokenDate = Convert.ToDateTime(userPrincipal.StreamerInfo.TokenTimestamp);
TimeSpan tokenEpoch = tokenDate.ToUniversalTime() - epoch;
long timestamp = (long)Math.Floor(tokenEpoch.TotalMilliseconds);

var credentials = new Credentials
{
    userid = userPrincipal.Accounts[0].AccountId,
    token = userPrincipal.StreamerInfo.Token,
    company = userPrincipal.Accounts[0].Company,
    segment = userPrincipal.Accounts[0].Segment,
    cddomain = userPrincipal.Accounts[0].AccountCdDomainId,
    usergroup = userPrincipal.StreamerInfo.UserGroup,
    accesslevel = userPrincipal.StreamerInfo.AccessLevel,
    authorized = "Y",
    timestamp = timestamp,
    appid = userPrincipal.StreamerInfo.AppId,
    acl = userPrincipal.StreamerInfo.Acl
};
var credentialArr = credentials.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public).Select(p => new KeyValuePair<string, string>(p.Name, p.GetValue(credentials, null).ToString()));
var loginRequest = new Request
{
    service = "ADMIN",
    command = "LOGIN",
    requestid = "0",
    account = userPrincipal.Accounts[0].AccountId,
    source = userPrincipal.StreamerInfo.AppId,
    parameters = new Parameters
    {
        credential = string.Join("&", credentialArr.Where(c => !string.IsNullOrWhiteSpace(c.Value)).Select(c => string.Format("{0}={1}", HttpUtility.UrlEncode(c.Key, Encoding.UTF8), HttpUtility.UrlEncode(c.Value, Encoding.UTF8)))),
        token = userPrincipal.StreamerInfo.Token,
        version = "1.0",
        qoslevel = "0"
    }
};
var req = JsonConvert.SerializeObject(Requests.ToRequests(loginRequest), Formatting.None, new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore });
socketClient = new WebSocket(string.Format("wss://{0}/ws", userPrincipal.StreamerInfo.StreamerSocketUrl));
if(Environment.OSVersion.Version.Major > 5)
{
    socketClient.SslConfiguration.EnabledSslProtocols = (System.Security.Authentication.SslProtocols)3072;
    socketClient.SslConfiguration.ServerCertificateValidationCallback = (sender, cert, chain, sslPolicyErrors) => { return true; };
}
socketClient.Connect();
socketClient.Send(req);

Answer 3

@Mikhail，您能分享一下获取用户主体的代码吗？这是我的代码，但我得到了status=401，即使我的访问令牌是有效的(我已经通过API页面测试了它)：

    using System;
    using WebSocketSharp;
    using System.Net.Http;
    using System.Threading.Tasks;

namespace TdLogin
{
    class Program
    {
        static async Task  Main(string[] args)
        {
            string accessToken = util.accessToken; // get the access token from util 
            Console.WriteLine("Hello World!");
            var client = new HttpClient();
            client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("bearer", accessToken);
            var result = await client.GetAsync("https://api.tdamer`enter code here`itrade.com/v1/userprincipals?fields=streamerSubscriptionKeys%2CstreamerConnectionInfo");
            Console.WriteLine("status= {0}", result.StatusCode);
            Console.WriteLine(result.Content);
            Console.ReadKey();
        }
    }
}