Download multiple twilio invoices from the browser devtools

twilio-invoices.js

// from https://blog.logrocket.com/programmatic-file-downloads-in-the-browser-9a5186298d5c/
function downloadBlob(blob, filename) {
  const url = URL.createObjectURL(blob);
  const a = document.createElement('a');
  a.href = url;
  a.download = filename || 'download';
  
  const clickHandler = function() {
    setTimeout(() => {
      URL.revokeObjectURL(url);
      this.removeEventListener('click', clickHandler);
      (this.remove && (this.remove(), 1)) ||
      (this.parentNode && this.parentNode.removeChild(this));
    }, 150)
  };
  
  a.addEventListener('click', clickHandler, false);
  a.click();
  return a;
}

[
  "01",
  "02",
  "03",
  "04",
  "05",
  "06",
  "07",
  "08",
  "09",
  "10",
  "11",
  "12"
].forEach(month =>
  fetch(`https://www.twilio.com/console/billing/api/receipt?m=${month}&y=2019`)
    .then(res => res.blob())
    .then(blob => {
      downloadBlob(blob, `twilio-invoice-${month}-2019`);
    })
);