C#IBM Speech to Text使用APIKey获取令牌

在一些帮助下,我终于找到了如何用apiKey处理WebSocket。

我把代码贴在这里以防别人需要

IamTokenData GetIAMToken(string apikey)
{
  var wr = (HttpWebRequest)WebRequest.Create("https://iam.bluemix.net/identity/token");
  wr.Proxy = null;
  wr.Method = "POST";
  wr.Accept = "application/json";
  wr.ContentType = "application/x-www-form-urlencoded";

  using (TextWriter tw = new StreamWriter(wr.GetRequestStream()))
  {
    tw.Write($"grant_type=urn:ibm:params:oauth:grant-type:apikey&apikey={apikey}");
  }
  var resp = wr.GetResponse();
  using (TextReader tr = new StreamReader(resp.GetResponseStream()))
  {
    var s = tr.ReadToEnd();
    return JsonConvert.DeserializeObject<IamTokenData>(s);
  }
}

IamTokenData tokenData = GetIAMToken([Your IamApiKey]);

CancellationTokenSource cts = new CancellationTokenSource();

ClientWebSocket clientWebSocket = new ClientWebSocket();

clientWebSocket.Options.Proxy = null;
clientWebSocket.Options.SetRequestHeader("Authorization", $"Bearer {token.AccessToken}");

// Make the sure the following URL is that one IBM pointed you to
Uri connection = new Uri($"wss://gateway-wdc.watsonplatform.net/speech-to-text/api/v1/recognize");
try
{
  //await clientWebSocket.ConnectAsync(connection, cts.Token);
  clientWebSocket.ConnectAsync(connection, cts.Token).GetAwaiter().GetResult();
  Console.WriteLine("Connected!");
}
catch (Exception e)
{
  Console.WriteLine("Failed to connect: " + e.ToString());
  return null;
}

// ... Do what you need with the websocket after that ...