How to use ng2-file-upload in Laravel?

How to use ng2-file-upload in Laravel?

How to get file in Laravel if I send it as POST (Json):

 public uploader: FileUploader = new FileUploader({
    url: environment.serverUploadUrl,
    disableMultipart: true,
    autoUpload: true,
    allowedFileType: ['xls', 'xlsx', 'csv'],
    itemAlias: 'attachment',
    additionalParameter: {
      action: 1
    }
  });

via Chebli Mohamed