I am learning NodeJs, Express, and Socket.io through a tutorial, the tutorial used a previous version of NodeJs, Express, and Socket.io to access userID. I am using current versions to do the same but it wasn't successful, I adjusted my code to conform with the current version but what I get is an empty string.
SESSION:
"use strict";
const session = require("express-session");
const MongoStore = require("connect-mongo")(session);
const config = require("../config");
const db = require("../db");
if (process.env.NODE_ENV === "production") {
// Initialize session with settings for production
module.exports = session({
secret: config.sessionSecret,
resave: false,
saveUninitialized: false,
store: new MongoStore({
mongooseConnection: db.Mongoose.connection,
}),
});
} else {
module.exports = session({
secret: config.sessionSecret,
resave: false,
saveUninitialized: true,
store: new MongoStore({
mongooseConnection: db.Mongoose.connection,
}),
});
}
SERVER
"use strict";
const express = require("express");
const ChatCAT = require("./app");
const passport = require("passport");
const app = express();
app.set("port", process.env.PORT || 3000);
app.use(express.static("public"));
app.set("view engine", "ejs");
app.use(ChatCAT.session);
app.use(passport.initialize());
app.use(passport.session());
app.use("/", ChatCAT.router);
let port = app.get("port");
ChatCAT.ioServer(app, passport).listen(port, () => {
console.log("ChatCAT Running on Port: ", port);
});
SOCKET.IO
io.of("/chatter").on("connection", (socket) => {
// Join a chatroom
socket.on("join", (data) => {
let usersList = helper.addUserToRoom(allrooms, data, socket);
// Update the list of active users as shown on the chatroom page
console.log("usersList: ", usersList);
// console.log("sessionID: ", socket.request.session);
});
});
addUserToRoom FUNCTION
let addUserToRoom = (allrooms, data, socket) => {
// Get the room object
let getRoom = findRoomById(allrooms, data.roomID);
if (getRoom !== undefined) {
// Get the active user's ID(ObjectID as used in session)
// let userID = socket.request.session.passport.user;
let userID = socket.request.user ? socket.request.user.id : "";
//let userID = socket.request.session.passport.user;
// Check to see if this user already exist in the chatroom
let checkUser = getRoom.users.findIndex((element, index, array) => {
// console.log("elementID: ", element.userID);
if (element.userID === userID) {
return true;
} else {
return false;
}
});
// If the user is already present in the room, remove the user first
if (checkUser > -1) {
getRoom.users.splice(checkUser, 1);
}
// Push the user into the room's users array
getRoom.users.push({
socketID: socket.id,
userID,
user: data.user,
userPic: data.userPic,
});
// Join the room channel
socket.join(data.roomID);
// Return the updated room object
return getRoom;
}
};
Create an IO Server instance
let ioServer = (app, passport) => {
app.locals.chatrooms = [];
const server = require("http").createServer(app);
const io = require("socket.io")(server);
const wrap = (middleware) => (socket, next) =>
middleware(socket.request, {}, next);
io.use(wrap(require("./session")));
io.use(wrap(passport.initialize()));
io.use(wrap(passport.session()));
io.use((socket, next) => {
if (socket.request.user) {
next();
} else {
next(new Error("unauthorized"));
}
});
require("./socket")(io, app);
return server;
};
You can see in the image below that I get an empty string in the userID
UPDATE
I adjusted my code to use passport.socketio but I am still getting the same blank string in my UserID, when I print socket.request to the console I get some data but when I print socket.request.user I get undefined:
let ioServer = (app, cookieParser) => {
app.locals.chatrooms = [];
const config = require("./config");
const server = require("http").Server(app);
const io = require("socket.io")(server);
const passportSocketIo = require("passport.socketio");
const sessionStore = require("./session");
const helper = require("./helpers");
io.use(
passportSocketIo.authorize({
cookieParser: cookieParser,
key: "connect.sid",
secret: config.sessionSecret,
store: sessionStore.store,
success: helper.onAuthorizeSuccess,
fail: helper.onAuthorizeFail,
})
);
const socket = require("./socket");
socket(io, app);
return server;
};
For anyone struggling with this issue, you do not need to use passportSocketIo if using express > 4.0, based on this post https://github.com/socketio/socket.io/blob/master/examples/passport-example/index.js#L76-L80//
All you need is this piece of code, rather than using passportSocketIO.
const wrap = middleware => (socket, next) => middleware(socket.request, {}, next);
io.of(<your namespace>).use(wrap(sessionMiddleware)); //if using passport, it will be socket.request.session.passport.user
io.of(<your namespace>).use(wrap(passport.initialize()));
io.of(<your namespace>).use(wrap(passport.session())); // this sets it to socket.request.user
The main reason your userID is blank is because you are using the chatter namespace
io.of("/chatter")
And dont have the session middleware attached to it, like so
io.of("/chatter").use(wrap(ChatCAT.session)); //if using passport, it will be socket.request.session.passport.user
io.of("/chatter").use(wrap(passport.initialize()));
io.of("/chatter").use(wrap(passport.session())); // this sets it to socket.request.user
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