Function isConnectionError

packages/shared/src/lib/errors.ts:24–59

(error: Error | unknown)

};

export const isConnectionError = (error: Error | unknown): boolean => {
  // Check browser's online status first
  if (typeof navigator !== 'undefined' && !navigator.onLine) {
    return true;
  }

  if (!error) {
    return false;
  }

  const errorMessage = error instanceof Error ? error.message : String(error);
  const errorName = error instanceof Error ? error.name : '';

  // Network-related error patterns
  const connectionErrorPatterns = [
    'Failed to fetch',
    'Network request failed',
    'NetworkError',
    'Network Error',
    'ERR_INTERNET_DISCONNECTED',
    'ERR_NETWORK_CHANGED',
    'ERR_CONNECTION_REFUSED',
    'ERR_CONNECTION_RESET',
    'ERR_CONNECTION_CLOSED',
    'ERR_CONNECTION_TIMED_OUT',
    'ENOTFOUND',
    'ECONNREFUSED',
    'ECONNRESET',
    'ETIMEDOUT',
    'offline',
  ];

  return connectionErrorPatterns.some(
    (pattern) => errorMessage.includes(pattern) || errorName.includes(pattern),
  );
};