Hi,
I am trying to use SlideShare API for my android app. I am trying to make
http request with parameters, and getting
<Message ID="1">Failed API validation</Message>
I am using following code for GET request
HttpURLConnection urlConnection = null;
URL url = new URL("https://www.slideshare.net/api/2/get_slideshows_by_tag";);
urlConnection = (HttpsURLConnection) url.openConnection();
Long tsLong = System.currentTimeMillis()/1000L;
HttpClient httpClient = new DefaultHttpClient();
List<BasicNameValuePair> nameValuePairs = new LinkedList<BasicNameValuePair>();
nameValuePairs.add(new BasicNameValuePair("api_key",ClientSetup.SLIDESHARE_ID));
nameValuePairs.add(new BasicNameValuePair("ts", String.valueOf(tsLong)));
nameValuePairs.add(new
BasicNameValuePair("hash",sha1Hash(ClientSetup.SLIDESHARE_SECRET+String.valueOf(tsLong))));
nameValuePairs.add(new BasicNameValuePair("tag", "marketing"));
HttpGet httpget = new HttpGet(url+"?"+ URLEncodedUtils.format(nameValuePairs,
"utf-8"));
HttpResponse response = httpClient.execute(httpget);
responseBody = EntityUtils.toString(response.getEntity());
Log.d (LOG_TAG, "response body is " + responseBody);
sha1Hash function is following
String sha1Hash( String toHash )
{
String hash = null;
try
{
MessageDigest digest = MessageDigest.getInstance( "SHA-1" );
byte[] bytes = toHash.getBytes("UTF-8");
digest.update(bytes, 0, bytes.length);
bytes = digest.digest();
// This is ~55x faster than looping and String.formating()
hash = bytesToHex( bytes );
}
catch( NoSuchAlgorithmException e )
{
e.printStackTrace();
}
catch( UnsupportedEncodingException e )
{
e.printStackTrace();
}
return hash;
}
Am I doing something wrong?
Thanks Grigor
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