download.js

export function download(id) {
    return api.get(`url/${id}`, {
        responseType: 'blob',
    }).then((responseBlob) => {
        let mime = require('mime-types');
        let ext = mime.extension(responseBlob.headers['content-type']);
        const url = window.URL.createObjectURL(new Blob([responseBlob.data]));
        const link = document.createElement('a');
        link.href = url;
        link.setAttribute('download', 'file.' + ext);
        document.body.appendChild(link);
        link.click();
    })
}