Question

当我尝试使用get方法注销时，我想删除令牌。

这是我的get方法：

const { User } = require('./models/user');
const { Book } = require('./models/book');
const { auth } = require('./middleware/auth');

app.get('/api/logout',auth,(req,res)=>{
    req.user.deleteToken(req.token,(err,user)=>{
        if(err) return res.status(400).send(err);
        res.sendStatus(200)
    })
})

它使用名为auth的中间件：

const {User} = require('./../models/user');


let auth = (req,res,next) =>{
let token = req.cookies.auth;
    User.findByToken(token,(err,user)=>{
        if(err) throw err;
        if(!user) return res.json({
            error:true
        });
        req.token = token;
        req.user = user
        return next();
    })
}

我的deleteToken函数是：

userSchema.methods.deleteToken = function(token,cb){
var user = this;

    user.update({$unset:{token:1}},(err,user)=>{
        if(err) return cb(err);
        cb(null,user)
    })
}


const User = mongoose.model('User',userSchema);
module.exports = { User }

当我与邮递员发送此请求时，它给我错误：

<html lang="en">
<head>
    <meta charset="utf-8">
    <title>Error</title>
</head>
<body>
    <pre>TypeError: req.user.deleteToken is not a function
        <br> &nbsp; &nbsp;at app.get (/Users/ademozsayin/Desktop/book/server/server.js:39:14)
        <br> &nbsp; &nbsp;at Layer.handle [as handle_request] (/Users/ademozsayin/Desktop/book/node_modules/express/lib/router/layer.js:95:5)
        <br> &nbsp; &nbsp;at next (/Users/ademozsayin/Desktop/book/node_modules/express/lib/router/route.js:137:13)
        <br> &nbsp; &nbsp;at User.findByToken (/Users/ademozsayin/Desktop/book/server/middleware/auth.js:15:16)
        <br> &nbsp; &nbsp;at /Users/ademozsayin/Desktop/book/server/models/user.js:80:13
        <br> &nbsp; &nbsp;at /Users/ademozsayin/Desktop/book/node_modules/mongoose/lib/model.js:4698:16
        <br> &nbsp; &nbsp;at /Users/ademozsayin/Desktop/book/node_modules/mongoose/lib/query.js:4099:12
        <br> &nbsp; &nbsp;at process.nextTick (/Users/ademozsayin/Desktop/book/node_modules/mongoose/lib/query.js:2681:28)
        <br> &nbsp; &nbsp;at processTicksAndRejections (internal/process/next_tick.js:74:9)
    </pre>
</body>

我已经导出了module.exports = { User }，其他功能都可以使用，但deleteToken（）无效。

TypeError：req.user.deleteToken不是node.js中的函数

0 个答案: