I've seen threads on this issue but my problem is particularly confusing. I have a free 2 million character subscription, a valid client id and secret. When I run my code I get to call the API a few times successfully (the most I've seen is 75 consecutive successful calls). Then every other call returns a Bad request response: The remote server returned an error: (400) Bad Request.
I create the token once with my credentials and never create it again. I loop through a file, parse it, and submit every parsed string for translation by calling the API. It seems that I reach some sort of limit that I'm now aware of.
When looking at my account, it doesn't seem to be discounting the characters that I've translated already which would make me highly suspicious that I have the wrong credentials when creating the token. I quadruple-checked that and everything seems to be ok.
Any guidance on what I may be missing here would be much appreciated.
Here's the code that creates the token. I do think though that there may be an unknown limitation that I'm not aware of with the free subscription.
static void gettoken()
{
//Get access token
string clientID = "my client id";
string clientSecret = "my secret";
String strTranslatorAccessURI = "https://datamarket.accesscontrol.windows.net/v2/OAuth2-13";
String strRequestDetails = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope=http://api.microsofttranslator.com", clientID, clientSecret);
System.Net.WebRequest webRequest = System.Net.WebRequest.Create(strTranslatorAccessURI);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.Method = "POST";
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(strRequestDetails);
webRequest.ContentLength = bytes.Length;
using (System.IO.Stream outputStream = webRequest.GetRequestStream())
{
outputStream.Write(bytes, 0, bytes.Length);
}
System.Net.WebResponse webResponse = webRequest.GetResponse();
System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(AdmAccessToken));
AdmAccessToken token = (AdmAccessToken)serializer.ReadObject(webResponse.GetResponseStream());
MyGlobals.headerValue = "Bearer " + token.access_token;
}
And here's the code that calls the API itself. I call the API method from a loop.
static void RunBing(string sterm)
{
//Submit the translation request
string txtToTranslate = sterm;
string uri = "http://api.microsofttranslator.com/v2/Http.svc/Translate?text=" + txtToTranslate + "&from=en&to=es";
System.Net.WebRequest translationWebRequest = System.Net.WebRequest.Create(uri);
translationWebRequest.Headers.Add("Authorization", MyGlobals.headerValue);
System.Net.WebResponse response = null;
try {
response = translationWebRequest.GetResponse();
}
catch (Exception e)
{
Console.WriteLine("Term failed: " + sterm);
Console.WriteLine(e);
return;
}
System.IO.Stream stream = response.GetResponseStream();
System.Text.Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
System.IO.StreamReader translatedStream = new System.IO.StreamReader(stream, encode);
System.Xml.XmlDocument xTranslation = new System.Xml.XmlDocument();
xTranslation.LoadXml(translatedStream.ReadToEnd());
MyGlobals.xlation = xTranslation.InnerText;
}
After several successful calls to the API, I start to get the following message: System.Net.WebException: The remote server returned an error: (400) Bad Request. at System.Net.HttpWebRequest.GetResponse() at Translate.TranslateText.Program.RunBing(String sterm)
