How to add a file to a post request in axios?

Question

JavaScript

Vue 2, axios, send form post request: Object with form:
axios.post( '/addTrack', this.form.data )

form: {

                    data: {

                        title : '',
                        style : '',
                        authors: [
                            {
                                id: '',
                                rightholder: 1,
                                percent: ''
                            }
                        ],
                        composers: [
                            {
                                id: '',
                                rightholder: 1,
                                percent: ''
                            }
                        ],
                        file: '',
                        right_area: 1,
                    },

                    errors: {

                    }

                }

How to attach a file to this request?
Tried like this, but didn't work:
this.form.data.file = e.target.files[0];

Answer 1

The decision was made to do this:

var formData = new FormData( document.getElementById('myForm') );

Answer 2

use FormData for request body
https://developer.mozilla.org/ru/docs/Web/API/FormData