async Task WebSocketTest(IamTokenData token, int userID)
{
CancellationTokenSource cts = new CancellationTokenSource();
ClientWebSocket clientWebSocket = new ClientWebSocket();
clientWebSocket.Options.Proxy = null;
clientWebSocket.Options.SetRequestHeader("Authorization", $"Bearer {token.AccessToken}");
Uri connection = new Uri($"wss://gateway-syd.watsonplatform.net/speech-to-text/api/v1/recognize?model=fr-FR_BroadbandModel");
try
{
await clientWebSocket.ConnectAsync(connection, cts.Token);
Console.WriteLine("Connected!");
}
catch (Exception e)
{
Console.WriteLine("Failed to connect: " + e.ToString());
return;
}
// send opening message and wait for initial delimeter
Task.WaitAll(clientWebSocket.SendAsync(openingMessage, WebSocketMessageType.Text, true, CancellationToken.None), HandleResults(clientWebSocket, userID));
// send all audio and then a closing message; simltaneously print all results until delimeter is recieved
Task.WaitAll(SendAudio(clientWebSocket), HandleResults(clientWebSocket, userID));
// close down the websocket
clientWebSocket.CloseAsync(WebSocketCloseStatus.NormalClosure, "Close", CancellationToken.None).Wait();
}
public void SpeechToText()
{
Credentials cred = new Credentials();
IamTokenData token = GetIAMToken(cred.STTApiKey);
WebSocketTest(token, userID).Wait();
}
public TokenManager(TokenOptions options)
{
iamUrl = !string.IsNullOrEmpty(options.IamUrl) ? options.IamUrl
: "https://iam.bluemix.net/identity/token";
if (!string.IsNullOrEmpty(options.IamApiKey))
{
iamApikey = options.IamApiKey;
}
if (!string.IsNullOrEmpty(options.IamAccessToken))
{
userAccessToken = options.IamAccessToken;
}
tokenInfo = new IamTokenData();
Client = new WatsonHttpClient(iamUrl);
}
private IamTokenData RefreshToken()
{
IamTokenData result = null;
try
{
if (string.IsNullOrEmpty(tokenInfo.RefreshToken))
{
throw new ArgumentNullException(nameof(tokenInfo.RefreshToken));
}
var request = Client.PostAsync(iamUrl);
request.WithHeader("Content-type", "application/x-www-form-urlencoded");
request.WithHeader("Authorization", "Basic Yng6Yng=");
List <KeyValuePair <string, string> > content = new List <KeyValuePair <string, string> >();
KeyValuePair <string, string> grantType = new KeyValuePair <string, string>("grant_type", "refresh_token");
KeyValuePair <string, string> refreshToken = new KeyValuePair <string, string>("refresh_token", tokenInfo.RefreshToken);
content.Add(grantType);
content.Add(refreshToken);
var formData = new FormUrlEncodedContent(content);
request.WithBodyContent(formData);
result = request.As <IamTokenData>().Result;
if (result == null)
{
result = new IamTokenData();
}
}
catch (AggregateException ae)
{
throw ae.Flatten();
}
return(result);
}
private IamTokenData RequestToken()
{
IamTokenData result = null;
try
{
var request = Client.PostAsync(iamUrl);
request.WithHeader("Content-type", "application/x-www-form-urlencoded");
request.WithHeader("Authorization", "Basic Yng6Yng=");
List <KeyValuePair <string, string> > content = new List <KeyValuePair <string, string> >();
KeyValuePair <string, string> grantType = new KeyValuePair <string, string>("grant_type", "urn:ibm:params:oauth:grant-type:apikey");
KeyValuePair <string, string> responseType = new KeyValuePair <string, string>("response_type", "cloud_iam");
KeyValuePair <string, string> apikey = new KeyValuePair <string, string>("apikey", iamApikey);
content.Add(grantType);
content.Add(responseType);
content.Add(apikey);
var formData = new FormUrlEncodedContent(content);
request.WithBodyContent(formData);
result = request.As <IamTokenData>().Result;
if (result == null)
{
result = new IamTokenData();
}
}
catch (AggregateException ae)
{
throw ae.Flatten();
}
return(result);
}
private void SaveTokenInfo(IamTokenData tokenResponse)
{
tokenInfo = tokenResponse;
}