(Java) Emoji Tweet

Demonstrates posting a status update that includes an emoji character.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // ----------------------------------------------------------------------
    // This initial setup, which involves setting the OAuth1 properties and connecting
    // to api.twitter.com, is only required once at the beginning.  Once connected, the same
    // object instance may be re-used, and if necessary, it will automatically reconnect
    // as needed.

    // Assume we've previously obtained an access token and saved it to a JSON file..
    CkJsonObject json = new CkJsonObject();
    boolean success = json.LoadFile("qa_data/tokens/twitter.json");

    CkRest rest = new CkRest();
    CkOAuth1 oauth1 = new CkOAuth1();

    oauth1.put_ConsumerKey("TWITTER_CONSUMER_KEY");
    oauth1.put_ConsumerSecret("TWITTER_CONSUMER_SECRET");
    oauth1.put_Token(json.stringOf("oauth_token"));
    oauth1.put_TokenSecret(json.stringOf("oauth_token_secret"));
    oauth1.put_SignatureMethod("HMAC-SHA1");
    oauth1.GenNonce(16);

    rest.SetAuthOAuth1(oauth1,false);

    boolean bAutoReconnect = true;
    success = rest.Connect("api.twitter.com",443,true,bAutoReconnect);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    // This ends the initial setup...
    // ----------------------------------------------------------------------

    // For this example, I've pre-created a text file containing two emoji
    // characters (the "ghost" emoji, and a "face savouring delicious food" emoji).  
    // This text file was saved using the utf-8 encoding.

    // The utf-8 bytes for the ghost emoji are 0x9f 0x91 0xbb.  (Note: This is the utf-8
    // representation that does not use surrogate pairs.)
    // 
    // The utf-8 bytes for the "face savouring delicious food" emoji are \xF0\x9F\x98\x8B.

    CkStringBuilder sbText = new CkStringBuilder();
    sbText.LoadFile("qa_data/txt/ghost_emoji.txt","utf-8");
    sbText.Prepend("Test tweet using two emoji chars: ");

    // Send a tweet...
    rest.ClearAllQueryParams();
    rest.AddQueryParam("status",sbText.getAsString());
    String resp = rest.fullRequestFormUrlEncoded("POST","/1.1/statuses/update.json");
    if (rest.get_LastMethodSuccess() != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    CkJsonObject jsonResponse = new CkJsonObject();
    jsonResponse.put_EmitCompact(false);
    jsonResponse.Load(resp);

    if (rest.get_ResponseStatusCode() != 200) {
        System.out.println(jsonResponse.emit());
        return;
        }

    // Show the successful response:
    System.out.println(jsonResponse.emit());
    System.out.println("Success.");
  }
}