handle "TokenExpiredError: jwt expired" Error

const checkToken = (req, res, next)=>{
    let token = req.headers['x-access-token'] || req.headers['authorization'];
    if(token && token.startsWith('Bearer ')){
        token = token.slice(7, token.length)
    }
    if(token){
        try{
            let decoded = jwt.verify(token, secret);
            req.decoded = decoded;
            User.findOne({email:decoded.email})
                .populate('following')
                .exec((err, user)=>{
                    if(err) throw err;
                    if(user){
                        req.user = user;
                        next();
                    }
                });
        }catch(err){
            res.status(403).send({
                success:false,
                message:err
            })
        }
    }else{
        return res.status(403).json({
            success:false,
            message:'Unauthorized'
        })
    }
};

If Token is Expired. Getting this error:

{ TokenExpiredError: jwt expired at /Users/pradeepkumar/Desktop/bitbucket/volupn-api/node_modules/jsonwebtoken/verify.js:152:21 at getSecret (/Users/pradeepkumar/Desktop/bitbucket/volupn-api/node_modules/jsonwebtoken/verify.js:90:14) at Object.module.exports [as verify] (/Users/pradeepkumar/Desktop/bitbucket/volupn-api/node_modules/jsonwebtoken/verify.js:94:10) at Socket.socket.on (/Users/pradeepkumar/Desktop/bitbucket/volupn-api/sockets/base.js:10:17) at Socket.emit (events.js:182:13) at Socket.EventEmitter.emit (domain.js:441:20) at /Users/pradeepkumar/Desktop/bitbucket/volupn-api/node_modules/socket.io/lib/socket.js:528:12 at process._tickCallback (internal/process/next_tick.js:61:11) name: 'TokenExpiredError', message: 'jwt expired', expiredAt: 2019-04-14T13:12:19.000Z }

[TeijiW]

I’m using err.name, but he just returns “Error”

[Shhuy]

是否是到了设置的过期时间以后进行解密，就会进入异常处理，我需要再时间过期以后拿到存入的信息，但是现在进入了异常。怎么解决呢？