Download files with AJAX (axios)

download-file.js

axios({
  url: 'http://localhost:5000/static/example.pdf',
  method: 'GET',
  responseType: 'blob', // important
}).then((response) => {
  const url = window.URL.createObjectURL(new Blob([response.data]));
  const link = document.createElement('a');
  link.href = url;
  link.setAttribute('download', 'file.pdf');
  document.body.appendChild(link);
  link.click();
});

triggerDownload.js

const triggerDownload = (filename, blob) => {
    // ie
    if (window.navigator && window.navigator.msSaveOrOpenBlob) {
        return window.navigator.msSaveOrOpenBlob(blob, filename)
    }
    // Chome, Firefox, ....
    const object_url = URL.createObjectURL(blob)
    const a = document.createElement('a')
    a.href = object_url
    a.download = filename
    a.click()
    a.remove()
    URL.revokeObjectURL(object_url)
}