const validateLoginInput = async (data) => {
  let errors = {};

  //check if user is blocked or not in redis cache
  await redisClient.select(2, (err) => {
    console.log('b');
    if (err) {
      console.log('c');
      errors.authFailedMessage = 'Server connection failed. Try again';
    } else {
      console.log('d');
      redisClient.get(`${data.userEmailLowerCase}`, (err, replay) => {
        if (err) {
          console.log('e');
          errors.authFailedMessage = 'Server connection failed. Try again';
        } else if (replay === 'Blocked') {
          console.log('f');
          errors.authFailedMessage =
            'You are temporary blocked. Try again in an hour.';
        }
      });
    }
  });

  return {
    errors,
    isValid: isEmpty(errors),
  };
};

module.exports = validateLoginInput;

我正在创建阻止电子邮件的列表。我知道问题是，在“return”被执行之前，承诺返回值的时间太迟了。但是，我试着用

new Promise(resolve, reject) or .then()

两个都不起作用。然后（）返回redisclient（）不是函数。而且，我认为async/await将等待承诺返回。它似乎适用于其他东西，但当我在redisclient上使用它时就不起作用了。