Basic session NodeJs

app.use('/get-favorites-info', (req, res, next) => {
  if (!req.session.likeItems){
    req.session.likeItems = {}
  }

  const { id } = req.body || {}
  if (id) {
    req.session.likeItems[id] = id
  }

  next()
})


app.post('/get-favorites-info', (req, res) => {
  console.log(req.session.likeItems)
})