如何在socket.io中访问express的会话对象

Question

I am using socket.io with express and using express session and express-socket.io-session , but I can't can't access properties of the express session in the socket.io session object and vice versa.

const server = require("http").createServer(app);
const client = require("socket.io").listen(server);

session = require("express-session")({
    secret: "my-secret",
    resave: true,
    saveUninitialized: true
  }),
  sharedsession = require("express-socket.io-session");

app.use(session);
client.use(sharedsession(session, {
    autoSave:true
})); 

client.on("connection", (socket) => {

    socket.on("input", data => {
        console.log(socket.handshake.session.user)
        socket.handshake.session.name = "bar"
        socket.handshake.session.save()
    })

})


app.post("/signup", (req, res, next) => {
    req.session.user = "foo";
})


app.get("/test", (req, res, next) => {
    console.log(req.session.name)
})

Both console.log() return undefined, as it seems like they both are two different objects.

Answer 1

我已解决问题，但在客户端HTML sock中使用var socket = io('http://localhost:8080') ，似乎无法理解此怪异问题。io会话ID与快速会话ID不同，但当我执行var socket = io()它们都共享相同的会话，并且一切都按预期工作。