display data on page when user is auth, express , jwt, cookie-parser - express

Question

I have simple application where user can register and login in his acc, now i want display user login on page, how i can get data from db about user that authinticated now
i also use mongodb and moongose as database
this register sistem
router.post('/register',async (req,res)=>{
const {login,mail,password} = req.body
bcrypt.hash(password, 10).then((hash) =>{
User({login:login,password:hash,mail:mail}).save()
})
res.redirect('/login')
})
this is login sistem
router.post('/',async (req,res)=>{
const {mail, password } = req.body
const user = req.body
console.log(user)
const isUserExist = await User.findOne({mail:mail})
const UserPwdCorrect = isUserExist.password
if(!isUserExist){
console.log('Логин гавно')
} else{
bcrypt.compare(password,UserPwdCorrect).then((match)=>{
if(!match){
console.log("Пароль говно")
} else{
const accessToken = createToken(user)
res.cookie("token",accessToken,{
maxAge:60*60*24*30*1000
})
res.redirect('/')
}
})
}
})
and this is what i did in jwt.js file
const {sign,verify} = require("jsonwebtoken")
const createToken = (user) =>{
const accessToken = sign({login: user.login, isAdmin:user.idAdmin,id:user.id},"jwt-secret")
return accessToken
}
const validateToken = (req,res,next) =>{
const accessToken = req.cookies["token"]
console.log(accessToken)
if(accessToken){
try {
const validtoken = verify(accessToken,"jwt-secret")
if(validtoken){
req.authenticated = true
return next()
} else{
return next()
}
} catch(err){
console.log(err)
}
}
}

Answer 1

Here's one solution:
Pass in userID in the JWT token. When the user clicks on the profile page, send a POST request to an endpoint that accepts the token (in a header). The backend verifies the token, extracts the userID, makes the DB call, and finally returns the response.
An advantage to this approach is that your profile route is authenticated (i.e, the route is secure).