public AdmAuthentication(string clientId, string clientSecret)
{
this.clientId = clientId;
this.clientSecret = clientSecret;
//If clientid or client secret has special characters, encode before sending request
this.request = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope=http://api.microsofttranslator.com", HttpUtility.UrlEncode(clientId), HttpUtility.UrlEncode(clientSecret));
this.token = HttpPost(DatamarketAccessUri, this.request);
//renew the token every specfied minutes
accessTokenRenewer = new Timer(new TimerCallback(OnTokenExpiredCallback), this, TimeSpan.FromMinutes(RefreshTokenDuration), TimeSpan.FromMilliseconds(-1));
}
public AdmAuthentication(string clientId, string clientSecret)
{
this.clientId = clientId;
this.clientSecret = clientSecret;
//If clientid or client secret has special characters, encode before sending request
this.request = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope=http://api.microsofttranslator.com", HttpUtility.UrlEncode(clientId), HttpUtility.UrlEncode(clientSecret));
this.token = HttpPost(DatamarketAccessUri, this.request);
//renew the token every specfied minutes
accessTokenRenewer = new Timer(new TimerCallback(OnTokenExpiredCallback), this, TimeSpan.FromMinutes(RefreshTokenDuration), TimeSpan.FromMilliseconds(-1));
}
private AdmAccessToken HttpPost(string DatamarketAccessUri, string requestDetails)
{
//Prepare OAuth request
WebRequest webRequest = WebRequest.Create(DatamarketAccessUri);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.Method = "POST";
byte[] bytes = Encoding.ASCII.GetBytes(requestDetails);
webRequest.ContentLength = bytes.Length;
using (Stream outputStream = webRequest.GetRequestStream())
{
outputStream.Write(bytes, 0, bytes.Length);
}
using (WebResponse webResponse = webRequest.GetResponse())
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(AdmAccessToken));
//Get deserialized object from JSON stream
AdmAccessToken token = (AdmAccessToken)serializer.ReadObject(webResponse.GetResponseStream());
return token;
}
}
private void RenewAccessToken()
{
AdmAccessToken newAccessToken = HttpPost(DatamarketAccessUri, this.request);
//swap the new token with old one
//Note: the swap is thread unsafe
this.token = newAccessToken;
Console.WriteLine(string.Format("Renewed token for user: {0} is: {1}", this.clientId, this.token.access_token));
}
