andrzey

const onUploadProgress = event => {
    const percentCompleted = Math.round((event.loaded * 100) / event.total);
    console.log('onUploadProgress', percentCompleted);
};

const upload = async files => {
    const data = new FormData();
    
    for(const [index, file] of files.entries()){
        data.append(index, file); // append all files