getPDF(){
this.apiService.getPDF(this.invoiceId)
.subscribe(
(data: Blob) => {
var file = new Blob([data], { type: 'application/pdf' })
var fileURL = URL.createObjectURL(file);
// if you want to open PDF in new tab
window.open(fileURL);
var a = document.createElement('a');
a.href = fileURL;
a.target = '_blank';
a.download = 'bill.pdf';
document.body.appendChild(a);
a.click();
},
(error) => {
console.log('getPDF error: ',error);
}
);
}