onFailure method

AuthResult onFailure(
  1. void callback(
    1. String? code,
    2. String? message
    )
)

실패 시에만 콜백 실행

result.onFailure((code, message) {
  print('에러: $message');
});

Implementation

AuthResult onFailure(void Function(String? code, String? message) callback) {
  if (!success) {
    callback(errorCode, errorMessage);
  }
  return this;
}