gistfile1.txt

$container['errorHandler'] = function ($c) {
  return function ($request, $response, $exception) use ($c) {
    $c->logger->error('Application Error:', [$exception]);
    return $c['response']
      ->withStatus(500)
      ->withHeader('Content-Type', 'application/json')
      ->withJson([
        'success' => false,
        'error' => "Nope, that didn't work. Try again."
      ]);
  };
};