Vfrdtyky

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?