How find some error send data react to backend? - reactjs

Question

I've seen in some videos that the username and password are sent via axios
this is:
const user_Login = (email, password) => async (dispatch) =>{
dispatch({ type: USER_LOGIN_REQUEST });
try {
const {data} = await axios( {
method: "POST",
data: {
username: email,
password: password
},
withCredentials: true,
url: "http://localhost:3001/login"
});
dispatch({ type: USER_LOGIN_SUCCESS, payload: data });
} catch (error) {
dispatch({type: USER_LOGIN_FAIL, error: error.message});
}
}
I used cors when I got the password with the username. but there is a problem I can't fix or find it. passport.serilizeUser change User id two times. and req.user cannot work.
This is backend:
const express = require('express');
const mongoose = require('mongoose');
const cors = require('cors');
const bodyParser = require('body-parser');
const passport = require('passport');
const LocalStrategy = require('passport-local');
const passportLocalMongoose = require('passport-local-mongoose');
const session = require('express-session');
const app = express();
app.use(cors({
origin: "http://localhost:3000",
credentials: true
}));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:true}));
app.use(session({
secret: "Our little secret.",
resave: false,
saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session());
mongoose.connect(
'mongodb://localhost:27017/testdb'
, {
useNewUrlParser: true,
useCreateIndex: true,
useUnifiedTopology: true
});
const shema = new mongoose.Schema({
username: String,
password: String
});
shema.plugin(passportLocalMongoose);
const User = mongoose.model("users", shema);
// User.plugin( passportLocalMongoose );
passport.use(User.createStrategy());
passport.serializeUser(function(user, done) {
console.log("serilizeUser:", user.id);
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
console.log("deserlizeUser: ", id);
User.findById(id, function(err, user) {
done(err, user);
});
});
app.post('/register', (req, res) => {
console.log(req.body);
User.register( {username: req.body.username}, req.body.password, (err,user)=>{
if(err){
console.log(err);
}
else{
res.send("User successfully registered!");
}
});
});
app.get('/', (req, res) => {
res.send(req.user);
});
app.post('/login', function(req, res){
const _user = new User({
username: req.body.username,
password: req.body.password
});
req.login( _user, function(err){
if(err){
console.log(err);
}
else{
console.log("inside: ", req.user.id);
passport.authenticate("local")(req,res,function(){
console.log("ok!");
})
}
} );
res.send(req.user.id);
});
app.get('/', (req, res) => {
res.send(req.user);
});
app.listen(3001, () => {
console.log(`Server started on port 3001`);
});
when I send username and password I get console this:
serilizeUser: 607959e213f2692264c31c3b
inside: 607959e213f2692264c31c3b
serilizeUser: 60794a8736e1df1dfc16c37c
ok!
I think error with send username and password. Please help me!
I can't solve this problem for 5 days.

Answer 1

req.login() establishes a login session. passport.authenticate() middleware invokes req.login() automatically. passport.serializeUser will be invoked from req.login().
Here both of them are being used. Only passport.authenticate() should be fine to create a session and authenticate it. Check the follows,
app.post("/login", function (req, res) {
passport.authenticate("local")(req, res, function () {
console.log("ok!");
res.send(req.user.id);
});
});
I checked it in my local and works as you expected !!