CODEWITHSUNDEEP
angulartypescriptdownloadhttpclientfilesaver.js
Djulian
Djulian

Reputation: 135

Angular 7 get corrupted file while downloading blob

Using Angular 7, i am calling api by posting the url file and try to download it by using 'saveAs' function from the fileSaver library. The file is downloading but it cannot be opened because it's corrupted.

my call is the following:

var file_url = (response as any).headers['Location'] + 'files/Data.xlsx';
var filename = 'Data_' + this.getDateService.getDateFile() + '.xlsx';

const httpOptions = {
          headers: new HttpHeaders({
            'Content-Type': 'application/x-www-form-urlencoded'
          }),
          responseType: 'arraybuffer',
          observe: 'response'
        };

let downloadParameters = { filename: 'Data_' + this.getDateService.getDateFile() + '.xlsx', file: file_url }

this.downloadFileService.downloadFile(downloadParameters, httpOptions).subscribe(reponse => {

          var blob = new Blob([(response as any).body], { type: 'application/vnd.openxmlformat-officedocument.spreadsheetml.sheet' });
          saveAs(blob, filename);
})

What i tried:

Below, the response headers from the service:

enter image description here

The file is present in the response body:

enter image description here

Do you guys have any clues ?

Upvotes: 1

Views: 2698

Answers (1)

Adrita Sharma
Adrita Sharma

Reputation: 22203

Try like this:

this.downloadFileService.downloadFile(downloadParameters, { responseType: 'blob' }).subscribe(blob=> {
  saveAs(blob, filename);
})

Upvotes: 2

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