How to get the data sent from ‘POST’ in this case?

Solution for How to get the data sent from ‘POST’ in this case?
is Given Below:

const express = require('express') // Import the express library
const app = express() // Use the express library to create an app
const {v4: uuid} = require('uuid') // gera chave aleatoria
const fs = require('fs')

app.get('/drop/', (req, res) => {
    
  res.send(`
  <div class="container">
  <div class="group">
  <h1>Drag Files Here</h1>
  <h3>Files will be available at: https://js5.c0d3.com/assetExercise/userAssets/filename.png</h3>
  </div>
</div>

<style>
.container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed; top: 0; bottom: 0; left: 0; right: 0;
}
.container.dropping {
  background-color: #8f8;
}
.group {
  text-align: center;
  pointer-events: none;
}
</style>

<script>
    
 const container = document.querySelector('.container')

const makeGreen = (e) => {
  container.classList.add('dropping')
  container.innerHTML = "<h1>Will upload " + e.dataTransfer.items.length + " Files</h1>"
  e.preventDefault()
}

const clearScreen = (e) => {
  container.classList.remove('dropping')
  container.innerHTML = "<h1>Uploading...</h1>"
  e.preventDefault()
  return false
}


container.addEventListener('dragover', makeGreen)
container.addEventListener('dragleave', clearScreen)

container.addEventListener('drop', (e) => {

  e.preventDefault()
    
    console.log(e.dataTransfer.files)
    
  const files = Array.from(e.target.files || e.dataTransfer.files)
  // No files
  if (!files.length) {
    return
  }

  const formData = new FormData()
    
  files.forEach( file => {
    formData.append('assets[]', file, file.name)
  })
    
  fetch('./stores', {
    method: 'POST',
    
    body: formData
  })
  
  return clearScreen(e)
    
})

</script>
  `)// send
}) // app.get


app.post('/stores',(req, res) => {
    
const dados = req.body.formData /// DOESNT WORK
    
console.log(dados)   
    
})

app.listen(xxxx)

So I get this error on node TypeError: Cannot read property 'formData' of undefined , when dropping the item in the window.

But it consoles.log properly the console.log(e.dataTransfer.files).

So my problem is receiving this data on app.post function.

Any idea pls?