express-session req.session.touch 不是一个函数？

Question

我正在做一个个人项目，最近包括 express-session 和 cookie-session。虽然我在导航到 localhost:3000/ 时遇到问题，但我收到一条错误消息，告诉我 req.session.touch 不是 express-session 模块中的函数。您可以在下面找到代码的 sn-p：

const express = require('express');
const bodyParser = require('body-parser');
const _ = require('lodash');
const passport = require('passport')
const LocalStrategy = require('passport-local')
const cookieParser = require('cookie-parser');
const session = require('express-session')
let cookieSession = require('cookie-session')
const pug = require('pug');
require('./db/mongoose');
const mongoose = require('mongoose');
const Todo = mongoose.model('Todo');
const User = mongoose.model('User');
let app = express();
const ObjectID = require('valid-objectid');

app.use(bodyParser.urlencoded({
  extended: true
}));

app.use(bodyParser.json());

//Use session
app.use(session({ secret: 'secretomitted', cookie: { maxAge: 0 } }))

//Set cookie session
app.use(cookieParser())
app.use(cookieSession({ name: 'session', secret: 'secretomitted', maxAge: 0 }))

//Set views folder and view engine
app.set('views', './views');
app.set('view engine', 'pug');


passport.use(new LocalStrategy(
  function (email, password, done) {
    User.findOne({ 'email': email }, function (err, user) {
      if (err) { return done(err); }
      if (!user) {
        return done(null, false, console.log('Wrong username'));
      }
      if (!user.validatePassword(password)) {
        return done(null, false, console.log('Wrong Password'));
      }
      return done(null, user);
    });
  }
));


//FE Requests

app.get('/', (req, res) => {
  res.send(pug.renderFile('index.pug'))
  console.log('index rendered')
})

这是我得到的错误：

[nodemon] 1.18.9
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node server/server.js`
express-session deprecated undefined resave option; provide resave option server/server.js:24:9
express-session deprecated undefined saveUninitialized option; provide saveUninitialized option server/server.js:24:9
Started on port 3000
/Users/alessandrocamplese/Desktop/Projects/Mongo-tasker/mongo-tasker/node_modules/express-session/index.js:326
        req.session.touch()
                    ^

TypeError: req.session.touch is not a function
    at ServerResponse.end (/Users/alessandrocamplese/Desktop/Projects/Mongo-tasker/mongo-tasker/node_modules/express-session/index.js:326:21)
    at Array.write (/Users/alessandrocamplese/Desktop/Projects/Mongo-tasker/mongo-tasker/node_modules/finalhandler/index.js:297:9)
    at listener (/Users/alessandrocamplese/Desktop/Projects/Mongo-tasker/mongo-tasker/node_modules/on-finished/index.js:169:15)
    at onFinish (/Users/alessandrocamplese/Desktop/Projects/Mongo-tasker/mongo-tasker/node_modules/on-finished/index.js:100:5)
    at callback (/Users/alessandrocamplese/Desktop/Projects/Mongo-tasker/mongo-tasker/node_modules/ee-first/index.js:55:10)
    at IncomingMessage.onevent (/Users/alessandrocamplese/Desktop/Projects/Mongo-tasker/mongo-tasker/node_modules/ee-first/index.js:93:5)
    at IncomingMessage.emit (events.js:197:13)
    at endReadableNT (_stream_readable.js:1129:12)
    at processTicksAndRejections (internal/process/next_tick.js:76:17)
[nodemon] app crashed - waiting for file changes before starting...

有什么解决办法吗？谢谢。

Answer 1

TL;DR：只使用一个会话管理，对于自定义会话信息扩展会话对象不要覆盖它。

老问题，但我遇到了同样的问题，所以对于其他试图完成同样事情的人来说：)。我认为问题是来自不同会话对象的某种冲突：

//Use session
app.use(session({ secret: 'secretomitted', cookie: { maxAge: 0 } }))

//Set cookie session
app.use(cookieParser())
app.use(cookieSession({ name: 'session', secret: 'secretomitted', maxAge: 0 }))

这是使用 express-session 和 cookie-session。这是expressjs.com的引述：

用户会话可以通过 cookie 以两种主要方式存储：在服务器上或在客户端上。 [cookie-session] 将客户端上的会话数据存储在 cookie 中，而 express-session 之类的模块仅将客户端上的会话标识符存储在 cookie 中，并将会话数据存储在服务器上，通常存储在数据库中。

如上所述，express-session 仅在 cookie 中存储一个 ID，而 cookie-session 将所有会话数据存储在 cookie 中。这个very short blog post 解释了弄乱会话数据将如何导致您的错误。这两种类型的会话存储不可避免地会导致这样的冲突，因为它们试图将数据存储在不同的地方。