URL urlObtainToken = new URL(URL);
HttpURLConnection connectionObtainToken = (HttpURLConnection) urlObtainToken.openConnection();
connectionObtainToken.setRequestMethod("POST");
connectionObtainToken.setDoOutput(true);
OutputStreamWriter writer = new OutputStreamWriter(connectionObtainToken.getOutputStream());
writer.write("...");
writer.close();
if (connectionObtainToken.getResponseCode() == HttpURLConnection.HTTP_OK) {}
