java - Bitstamp {"error": "API key not found"} Code Response: 200 -

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i trying place balance request bitstamp in java, wrote following code getting error:

{"error": "api key not found"} code response: 200

anyone has idea?

the key , secret ones correctly provided exchange wonder if making mistake along way.

import java.io.bufferedreader; import java.io.dataoutputstream; import java.io.ioexception; import java.io.inputstreamreader; import java.net.url; import java.net.urlencoder; import java.security.keymanagementexception; import java.security.nosuchalgorithmexception; import java.util.linkedhashmap; import java.util.map;  import javax.crypto.mac; import javax.crypto.spec.secretkeyspec; import javax.net.ssl.httpsurlconnection; import javax.xml.bind.datatypeconverter;  public class main {  public static void main(string[] args) {     string key    = "apikeydemo";     string secret = "apisecretdemo";     integer nonce  = 100;     string id = "123456";      string message = nonce.tostring() + id + key;      string signature = "";     try {         signature = encode(secret, message);     } catch (exception e) {         // todo auto-generated catch block         e.printstacktrace();     }       map<string, string> map = new linkedhashmap<string, string>();      map.put("key", key);     map.put("signature", signature);     map.put("nonce", nonce.tostring());        stringbuilder urlparameters = new stringbuilder();        (string k : map.keyset()) {           if(urlparameters.length() > 0) {               urlparameters.append("&");           }           urlparameters.append(k).append("=").append(urlencoder.encode(map.get(k)));       }        //system.out.println(urlparameters);       try {         dopost(map);     } catch (keymanagementexception e) {         // todo auto-generated catch block         e.printstacktrace();     } catch (nosuchalgorithmexception e) {         // todo auto-generated catch block         e.printstacktrace();     } catch (ioexception e) {         // todo auto-generated catch block         e.printstacktrace();     }    }  public static string encode(string secret, string message) throws exception {      mac sha256_hmac = mac.getinstance("hmacsha256");     secretkeyspec secret_key = new secretkeyspec(secret.getbytes(), "hmacsha256");     sha256_hmac.init(secret_key);     byte[] hash = sha256_hmac.dofinal(message.getbytes());     string signature = datatypeconverter.printhexbinary(hash).touppercase();      //system.out.println(signature);      return signature;  }   private static string dopost( map<string,string> params) throws ioexception, nosuchalgorithmexception, keymanagementexception {      //"param1=a&param2=b&param3=c"       stringbuilder urlparameters = new stringbuilder();        (string key : params.keyset()) {          if(urlparameters.length() > 0) {             urlparameters.append("&");          }          //urlparameters.append(key).append("=").append(urlencoder.encode(params.get(key)));          urlparameters.append(key).append("=").append(params.get(key));       }         string query = urlparameters.tostring();        system.out.println(query);         url url = new url("https://www.bitstamp.net/api/balance/");        httpsurlconnection con = (httpsurlconnection) url.openconnection();        //add reuqest header       con.setrequestmethod("post");        // send post request       con.setdooutput(true);       dataoutputstream wr = new dataoutputstream(con.getoutputstream());       wr.writebytes(query);       wr.flush();       wr.close();         string json = "";       if (con.getresponsecode() == httpsurlconnection.http_ok) {          bufferedreader br = new bufferedreader(new          inputstreamreader(con.getinputstream()));          string text;          while((text = br.readline()) != null) {             json += text;          }          br.close();       }else{          ;       }       con.disconnect();       system.out.println("code response: " + con.getresponsecode());       return json;      }

}

did remember click activate next key on api page?


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