KarixMessageExample.java

import java.net.URL;
import java.net.HttpURLConnection;
import java.io.*;
import org.json.JSONObject;
import java.util.Base64;
import java.nio.charset.StandardCharsets;

class KarixMessageExample {
    public static void main(String[] args) {
        try {
            URL url = new URL ("https://api.karix.io/message/");

            HttpURLConnection con = (HttpURLConnection) url.openConnection();
            con.setDoOutput(true);
            con.setDoInput(true);
            con.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
            con.setRequestMethod("POST");

            String auth_id = "<Your Auth ID from dashboard>";
            String auth_token = "<Your Auth Token from dashboard>";
            String encoded = Base64.getEncoder().encodeToString(
                (auth_id+":"+auth_token).getBytes(StandardCharsets.UTF_8));
            con.setRequestProperty("Authorization", "Basic "+encoded);

            JSONObject message_request   = new JSONObject();
            message_request.put("source","<your sender ID>");
            // This will give error
            // message_request.put("destination","<E.164 destination>");
            message_request.put("destination",new String[] {"<E.164 destination>"});
            message_request.put("text","salut");

            OutputStream os = con.getOutputStream();
            os.write(message_request.toString().getBytes("UTF-8"));
            os.close();

            StringBuilder sb = new StringBuilder();  
            int result = con.getResponseCode(); 
            if (result == HttpURLConnection.HTTP_ACCEPTED) {
                BufferedReader br = new BufferedReader(
                    new InputStreamReader(con.getInputStream(), "utf-8"));
                String line = null;  
                while ((line = br.readLine()) != null) {  
                    sb.append(line + "\n");  
                }
                br.close();
                System.out.println("Success: " + sb.toString());
            } else {
                BufferedReader br = new BufferedReader(
                    new InputStreamReader(con.getErrorStream(), "utf-8"));
                String line = null;  
                while ((line = br.readLine()) != null) {  
                    sb.append(line + "\n");  
                }
                br.close();
                System.out.println(result);
                System.out.println("Failure: " + sb.toString());
            }
        } catch(Exception e) {
            e.printStackTrace();
        }
    }
}