Get size of file
```
 @Mutation(() => Boolean)
  @UseGuards(JwtAuthGplGuard)
  async uploadAvatar(
    @Args({ name: 'file', type: () => GraphQLUpload })
    file: FileUpload,
    @CurrentUser()
    user: User,
  ) {
   const { createReadStream, filename, mimetype } = await file;
   const _buffer: ReadStream = createReadStream();

   // Get file Size
   for await (const uploadChunk of _buffer) {
     byteLength += (uploadChunk as Buffer).byteLength;
     console.log('forawait');
  }

  if (max_photo_size < byteLength) {
    return false;
  }
 
 // Add file
 const avatar = await this.userService.addFile(_buffer);
}
```
add file service not runing
there another way to get file size ??
Thank you for help

