Getting PostgreSQL Table Data

public class TableActivity extends AppCompatActivity {
   private static final String MY_URL = "http://testmasterfmp.fsight.cloud/";
   private static final VersionAPI MY_VERSION_API = VersionAPI.V_1;
   private static final String MY_ENVIRONMENT = "Leonid_environment";
   private static final String MY_PROJECT = "Leonid_project";
   private static final String MY_VERSION = "v1";
   private static final String MY_LOGIN = "Leonid";
   private static final String MY_PASSWORD = "123123";
   private static final String MY_RESOURCE = "Leonid_postgreSQL";
   private static final String TAG = "TableStreamActivity";
 
   private HyperHive hyperHive;
   private TextView textView;
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_table);
       textView = findViewById(R.id.text_view_table);
 
       Handler uiHandler = new Handler();
 
       hyperHive = new HyperHiveState(getApplicationContext())
               .setHostWithSchema(MY_URL)
               .setApiVersion(MY_VERSION_API)
               .setEnvironmentSlug(MY_ENVIRONMENT)
               .setProjectSlug(MY_PROJECT)
               .setVersionProject(MY_VERSION)
               .setHandler(uiHandler)
               .buildHyperHive();
       authentication();
   }
 
   public void authentication() {
       boolean status = hyperHive.authAPI.auth(MY_LOGIN, MY_PASSWORD, true).execute().isOk();
       showStatus(status);
   }
 
   public void table(View view) {
       // Create parameters for the TableCallParams request
       TableCallParams tableCallParams = new TableCallParams();
       String data = "{\"upsert_rows\": null ,\"delete_ids\": null}";
       tableCallParams.setData(data);
 
       // Send the table request
       String response = hyperHive.requestAPI.table(MY_RESOURCE, tableCallParams).execute();
       textView.setText(response);
   }
 
   public void showStatus(boolean status) {
       Log.d(TAG, "auth: " + status);
       Toast.makeText(this, "auth: " + status, Toast.LENGTH_LONG).show();
   }
}