Dfyjkt

I'm trying to implement example with opening PDF document from Angular 6 and Spring framework. I tried this:

private static final String EXTERNAL_FILE_PATH = "/Users/test/Documents/blacklist_api.pdf";

 @GetMapping(path="export") 
 public ResponseEntity<byte> export() throws IOException 
 File pdfFile = Paths.get(EXTERNAL_FILE_PATH).toFile(); 

 byte fileContent = Files.readAllBytes(pdfFile.toPath());

 HttpHeaders headers = new HttpHeaders();
 headers.setContentType(MediaType.APPLICATION_PDF);
 // Here you have to set the actual filename of your pdf
 headers.setContentDispositionFormData(pdfFile.getName(), pdfFile.getName());
 headers.setCacheControl("must-revalidate, post-check=0, pre-check=0, no-cache, no-store, must-revalidate");
 headers.setPragma("no-cache");
 ResponseEntity<byte> response = new ResponseEntity<>(fileContent, headers, HttpStatus.OK);
 return response;
 

Service:

@Injectable(
 providedIn: 'root'
)
export class DownloadService 

 constructor(private http: HttpClient) 
 

 downloadPDF(): any 
 return this.http.get(environment.api.urls.downloads.getPdf, 
 responseType: 'blob'
 )
 .pipe(
 map((res: any) => 
 return res
 )
 );
 

Component:

@Component(
 selector: 'app-download',
 templateUrl: './download.component.html',
 styleUrls: ['./download.component.scss']
)
export class DownloadComponent implements OnInit 

 constructor(private downloadService: DownloadService,
 private router: Router,
 private route: ActivatedRoute) 
 

 ngOnInit() 
 

 export() 
 this.downloadService.downloadPDF().subscribe(res => 
 const fileURL = URL.createObjectURL(res);
 window.open(fileURL, '_blank');
 ); 
 

I can download the file in new tab but I have to click enable popup. Is there are way to implement this without manually clicking on enable popup? Probably I need to change the type of the returned object?