Storage::append() downloading content then appending

[code-creeper]

Hi, I am a laravel freamwork user from 3 years.

I want to append content in a file using s3.

But laravel Storage::append() download the content placed in the RAM then concatenate the new content with it the replace it with the file already placed in s3, please tell me If I am wrong or tell me any other way to do append file in s3 bucket for support chunk upload because cloude fare has limit my request 100mb.

Thanks,