Uploadingimage to server

I want to upload files to S3 server. I am able to get image from Camera and read it with file plugin:

    this.file.resolveLocalFilesystemUrl(imageData).then((entry: FileEntry) => {
      let dirPath = entry.nativeURL;
      const dirPathSegments = dirPath.split('/');
      dirPath = dirPathSegments.join('/');

      this.file.readAsArrayBuffer(dirPath, entry.name).then((buffer) => {

        const imgBlob = new Blob([new Uint8Array(buffer)], {type: 'application/image-jpeg;charset=utf-8'});

        this.videoService.store('match', 118, [imgBlob])
          (event: any) => {
            // Handeling server response
          (responseError) => console.log(responseError));

    }).catch((err) => console.log(err));

Is there a way to send actual file and not blob or Array buffer? Or can somebody explain why it is better to send Blob or Array buffer.


You can create FormDate and append your blob and then post your form data to server.
Note: As far as I know iOS doesn’t have proper FormData support. You might need to use polyfill

public uploadFile(url: string, base64: string): Observable<any> {
      const blob: Blob = this.dataURItoBlob(base64);
      const fd = new FormData();
      fd.append('file[]', blob);
      return this.http.post(url, fd);

private dataURItoBlob(dataURI: string): Blob {
    // convert base64/URLEncoded data component to raw binary data held in a string
    let byteString;
    if (dataURI.split(',')[0].indexOf('base64') >= 0)
        byteString = atob(dataURI.split(',')[1]);
        byteString = encodeURI(dataURI.split(',')[1]);

    // separate out the mime component
    const mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];

    // write the bytes of the string to a typed array
    const ia = new Uint8Array(byteString.length);
    for (var i = 0; i < byteString.length; i++) {
        ia[i] = byteString.charCodeAt(i);

    return new Blob([ia], {type:mimeString});