I work on angular 8 application I need to add progress bar
when click upload button so progress bar will work when click
button upload until finish upload
upload service
public uploadFile = () => { this._dataService.PostUpload(this.selectedoptions.toString(),this.fileToUpload)
.subscribe((response: Blob) => saveAs(response, this.fileToUpload.name + '.xlsx')); }
<button (click)="uploadFile()"></button>