Detect Method
Use the Detect Method to identify the language of a selected piece of text.
| Method | Request URI |
|---|---|
| GET | http://api.microsofttranslator.com/V2/Http.svc/Detect |
| Parameter | Description |
|---|---|
|
appId |
Required. If the Authorization header is used, leave the appid field empty else a string containing "Bearer" + " " + access token. |
|
text |
Required. A string containing some text whose language is to be identified. The size of the text must not exceed 10000 characters. |
The following table describes required and optional request headers.
| Request Header | Description |
|---|---|
|
Authorization |
Required. Specify the the value of access_token in format "Bearer" + " " + Access Token Value |
| Return value |
|---|
| A string containing a two-character Language code for the given text. |
Note
|
|---|
|
Bing App ID is deprecated and is no longer supported. Please obtain an access token to use the Microsoft Translator API. For details, go here. |
Example
C#PHP
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;
using System.Runtime.Serialization.Json;
using System.Runtime.Serialization;
using System.Web;
using System.ServiceModel.Channels;
using System.ServiceModel;
namespace MicrosoftTranslatorSdk.HttpSamples
{
class Program
{
static void Main(string[] args)
{
AdmAccessToken admToken;
string headerValue;
//Get Client Id and Client Secret from https://datamarket.azure.com/developer/applications/
//Refer obtaining AccessToken (http://msdn.microsoft.com/en-us/library/hh454950.aspx)
AdmAuthentication admAuth = new AdmAuthentication("clientID", "client secret");
try
{
admToken = admAuth.GetAccessToken();
// Create a header with the access_token property of the returned token
headerValue = "Bearer " + admToken.access_token;
DetectMethod(headerValue);
}
catch (WebException e)
{
ProcessWebException(e);
Console.WriteLine("Press any key to continue...");
Console.ReadKey(true);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine("Press any key to continue...");
Console.ReadKey(true);
}
}
private static void DetectMethod(string authToken)
{
Console.WriteLine("Enter Text to detect language:");
string textToDetect = Console.ReadLine();
//Keep appId parameter blank as we are sending access token in authorization header.
string uri = "http://api.microsofttranslator.com/v2/Http.svc/Detect?text=" + textToDetect;
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(uri);
httpWebRequest.Headers.Add("Authorization", authToken);
WebResponse response = null;
try
{
response = httpWebRequest.GetResponse();
using (Stream stream = response.GetResponseStream())
{
System.Runtime.Serialization.DataContractSerializer dcs = new System.Runtime.Serialization.DataContractSerializer(Type.GetType("System.String"));
string languageDetected = (string)dcs.ReadObject(stream);
Console.WriteLine(string.Format("Language detected:{0}", languageDetected));
Console.WriteLine("Press any key to continue...");
Console.ReadKey(true);
}
}
catch
{
throw;
}
finally
{
if (response != null)
{
response.Close();
response = null;
}
}
}
private static void ProcessWebException(WebException e)
{
Console.WriteLine("{0}", e.ToString());
// Obtain detailed error information
string strResponse = string.Empty;
using (HttpWebResponse response = (HttpWebResponse)e.Response)
{
using (Stream responseStream = response.GetResponseStream())
{
using (StreamReader sr = new StreamReader(responseStream, System.Text.Encoding.ASCII))
{
strResponse = sr.ReadToEnd();
}
}
}
Console.WriteLine("Http status code={0}, error message={1}", e.Status, strResponse);
}
}
[DataContract]
public class AdmAccessToken
{
[DataMember]
public string access_token { get; set; }
[DataMember]
public string token_type { get; set; }
[DataMember]
public string expires_in { get; set; }
[DataMember]
public string scope { get; set; }
}
public class AdmAuthentication
{
public static readonly string DatamarketAccessUri = "https://datamarket.accesscontrol.windows.net/v2/OAuth2-13";
private string clientId;
private string clientSecret;
private string request;
private AdmAccessToken token;
private Timer accessTokenRenewer;
//Access token expires every 10 minutes. Renew it every 9 minutes only.
private const int RefreshTokenDuration = 9;
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 specified minutes
accessTokenRenewer = new Timer(new TimerCallback(OnTokenExpiredCallback), this, TimeSpan.FromMinutes(RefreshTokenDuration), TimeSpan.FromMilliseconds(-1));
}
public AdmAccessToken GetAccessToken()
{
return this.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));
}
private void OnTokenExpiredCallback(object stateInfo)
{
try
{
RenewAccessToken();
}
catch (Exception ex)
{
Console.WriteLine(string.Format("Failed renewing access token. Details: {0}", ex.Message));
}
finally
{
try
{
accessTokenRenewer.Change(TimeSpan.FromMinutes(RefreshTokenDuration), TimeSpan.FromMilliseconds(-1));
}
catch (Exception ex)
{
Console.WriteLine(string.Format("Failed to reschedule the timer to renew access token. Details: {0}", ex.Message));
}
}
}
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;
}
}
}
}
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<?php
class AccessTokenAuthentication {
/*
* Get the access token.
*
* @param string $grantType Grant type.
* @param string $scopeUrl Application Scope URL.
* @param string $clientID Application client ID.
* @param string $clientSecret Application client ID.
* @param string $authUrl Oauth Url.
*
* @return string.
*/
function getTokens($grantType, $scopeUrl, $clientID, $clientSecret, $authUrl){
try {
//Initialize the Curl Session.
$ch = curl_init();
//Create the request Array.
$paramArr = array (
'grant_type' => $grantType,
'scope' => $scopeUrl,
'client_id' => $clientID,
'client_secret' => $clientSecret
);
//Create an Http Query.//
$paramArr = http_build_query($paramArr);
//Set the Curl URL.
curl_setopt($ch, CURLOPT_URL, $authUrl);
//Set HTTP POST Request.
curl_setopt($ch, CURLOPT_POST, TRUE);
//Set data to POST in HTTP "POST" Operation.
curl_setopt($ch, CURLOPT_POSTFIELDS, $paramArr);
//CURLOPT_RETURNTRANSFER- TRUE to return the transfer as a string of the return value of curl_exec().
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
//CURLOPT_SSL_VERIFYPEER- Set FALSE to stop cURL from verifying the peer's certificate.
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
//Execute the cURL session.
$strResponse = curl_exec($ch);
//Get the Error Code returned by Curl.
$curlErrno = curl_errno($ch);
if($curlErrno){
$curlError = curl_error($ch);
throw new Exception($curlError);
}
//Close the Curl Session.
curl_close($ch);
//Decode the returned JSON string.
$objResponse = json_decode($strResponse);
if ($objResponse->error){
throw new Exception($objResponse->error_description);
}
return $objResponse->access_token;
} catch (Exception $e) {
echo "Exception-".$e->getMessage();
}
}
}
/*
* Class:HTTPTranslator
*
* Processing the translator request.
*/
Class HTTPTranslator {
/*
* Create and execute the HTTP CURL request.
*
* @param string $url HTTP Url.
* @param string $authHeader Authorization Header string.
* @param string $postData Data to post.
*
* @return string.
*
*/
function curlRequest($url, $authHeader, $postData=''){
//Initialize the Curl Session.
$ch = curl_init();
//Set the Curl url.
curl_setopt ($ch, CURLOPT_URL, $url);
//Set the HTTP HEADER Fields.
curl_setopt ($ch, CURLOPT_HTTPHEADER, array($authHeader,"Content-Type: text/xml"));
//CURLOPT_RETURNTRANSFER- TRUE to return the transfer as a string of the return value of curl_exec().
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
//CURLOPT_SSL_VERIFYPEER- Set FALSE to stop cURL from verifying the peer's certificate.
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, False);
if($postData) {
//Set HTTP POST Request.
curl_setopt($ch, CURLOPT_POST, TRUE);
//Set data to POST in HTTP "POST" Operation.
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
}
//Execute the cURL session.
$curlResponse = curl_exec($ch);
//Get the Error Code returned by Curl.
$curlErrno = curl_errno($ch);
if ($curlErrno) {
$curlError = curl_error($ch);
throw new Exception($curlError);
}
//Close a cURL session.
curl_close($ch);
return $curlResponse;
}
/*
* Create Request XML Format.
*
* @param string $languageCode Language code
*
* @return string.
*/
function createReqXML($languageCode) {
//Create the Request XML.
$requestXml = '<ArrayOfstring xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">';
if($languageCode) {
$requestXml .= "<string>$languageCode</string>";
} else {
throw new Exception('Language Code is empty.');
}
$requestXml .= '</ArrayOfstring>';
return $requestXml;
}
}
try {
//Client ID of the application.
$clientID = "ClientId";
//Client Secret key of the application.
$clientSecret = "clientsecret";
//OAuth Url.
$authUrl = "https://datamarket.accesscontrol.windows.net/v2/OAuth2-13/";
//Application Scope Url
$scopeUrl = "http://api.microsofttranslator.com";
//Application grant type
$grantType = "client_credentials";
//Create the AccessTokenAuthentication object.
$authObj = new AccessTokenAuthentication();
//Get the Access token.
$accessToken = $authObj->getTokens($grantType, $scopeUrl, $clientID, $clientSecret, $authUrl);
//Create the authorization Header string.
$authHeader = "Authorization: Bearer ". $accessToken;
//Create the Translator Object.
$translatorObj = new HTTPTranslator();
//Input String.
$inputStr = 'This is the sample string.';
//HTTP Detect Method URL.
$detectMethodUrl = "http://api.microsofttranslator.com/V2/Http.svc/Detect?text=".urlencode($inputStr);
//Call the curlRequest.
$strResponse = $translatorObj->curlRequest($detectMethodUrl, $authHeader);
//Interprets a string of XML into an object.
$xmlObj = simplexml_load_string($strResponse);
foreach((array)$xmlObj[0] as $val){
$languageCode = $val;
}
/*
* Get the language Names from languageCodes.
*/
$locale = 'en';
$getLanguageNamesurl = "http://api.microsofttranslator.com/V2/Http.svc/GetLanguageNames?locale=$locale";
//Create the Request XML format.
$requestXml = $translatorObj->createReqXML($languageCode);
//Call the curlRequest.
$curlResponse = $translatorObj->curlRequest($getLanguageNamesurl, $authHeader, $requestXml);
//Interprets a string of XML into an object.
$xmlObj = simplexml_load_string($curlResponse);
echo "<table border=2px>";
echo "<tr>";
echo "<td><b>LanguageCodes</b></td><td><b>Language Names</b></td>";
echo "</tr>";
foreach($xmlObj->string as $language){
echo "<tr><td>".$inputStr."</td><td>". $languageCode."(".$language.")"."</td></tr>";
}
echo "</table>";
} catch (Exception $e) {
echo "Exception: " . $e->getMessage() . PHP_EOL;
}
Note