How to process formData in node.js?

Question

JavaScript

The client sends files using a request

const fData = new FormData()

fData.append('cover', dQS('[data-id="0"]').files[0])
fData.append('background', dQS('[data-id="1"]').files[0])

let response = fetch('/create-manga.js', {
    method: 'POST',
    body: fData,
})

How to accept these files on the server?