Function isResumableError

src/error.ts:1541–1567

(error?: Error, wireVersion?: number)

}

export function isResumableError(error?: Error, wireVersion?: number): boolean {
  if (error == null || !(error instanceof MongoError)) {
    return false;
  }

  if (error instanceof MongoNetworkError) {
    return true;
  }

  if (error instanceof MongoServerSelectionError) {
    return true;
  }

  if (wireVersion != null && wireVersion >= 9) {
    // DRIVERS-1308: For 4.4 drivers running against 4.4 servers, drivers will add a special case to treat the CursorNotFound error code as resumable
    if (error.code === MONGODB_ERROR_CODES.CursorNotFound) {
      return true;
    }
    return error.hasErrorLabel(MongoErrorLabel.ResumableChangeStreamError);
  }

  if (typeof error.code === 'number') {
    return GET_MORE_RESUMABLE_CODES.has(error.code);
  }

  return false;
}