1. @override
Future refreshTokenWithAccessToken(AuthServer server, String oldAccessToken, String newAccessToken, DateTime newIssueDate, DateTime newExpirationDate)

Asks this instance to update an existing AuthToken for server.

This method must must update an existing AuthToken, found by oldAccessToken, with the values newAccessToken, newIssueDate and newExpirationDate.

Source 

@override
Future refreshTokenWithAccessToken(
    AuthServer server,
    String oldAccessToken,
    String newAccessToken,
    DateTime newIssueDate,
    DateTime newExpirationDate) {
  var query = new Query<ManagedToken>(context)
    ..where.accessToken = oldAccessToken
    ..values.accessToken = newAccessToken
    ..values.issueDate = newIssueDate
    ..values.expirationDate = newExpirationDate;

  return query.updateOne();
}