jwt 检查令牌是否过期

问题描述

我已经像这样配置了令牌:

I've configured the token like this:

jwt.sign(
  {
    user: pick(user, ['_id', 'username'])
  },
  secret,
  {
    expiresIn: '2m'
  }
);

但是当我想检查令牌是否过期时，这段代码不起作用

But when I want to check if the token was expired, this code doesn't work

function isAuthenticated() {
  const token = localStorage.getItem('token');
  const refreshToken = localStorage.getItem('refreshToken');
  try {
    decode(token);
    const { exp } = decode(refreshToken);
    if (exp < (new Date().getTime() + 1) / 1000) {
      return false;
    }
  } catch (err) {
    return false;
  }
  return true;
}

问题出在这部分:

if (exp < (new Date().getTime() + 1) / 1000) {
  return false;
}

new Date().getTime() + 1)/1000 = 1531335468.113

new Date().getTime() + 1) / 1000 = 1531335468.113

exp = 1531334595

exp = 1531334595

因为不知道JWT用的是什么格式的时间...

Because I don't know what format of time uses JWT...

我该如何解决这个问题?

How can I resolve this?

谢谢！

推荐答案

如果有人想知道，这就是答案

This is the answer if someone want to know

if (Date.now() >= exp * 1000) {
  return false;
}