How to store files?

Question

Node.js

I have a project written in node.js.
I need to store files - and a lot, from the word A LOT OF FILES!
They should be sorted into directories in each directory with 1000 files, if a directory creates 999 files a new directory is created.
Are there any libraries, courses, reports on storing files using node.js in this case - forget about defragmentation, since these files will not need to be deleted.
Thank you.

Answer 1

You don't need anything other than https://nodejs.org/api/fs.html . Do a readdir and if the array is >= 1000, create a new directory.
Or even easier store somewhere the total number of files. For example, you have 2423192 files already distributed, so the next one will go to the directory Math.floor(2423192 / 1000) = 2423

Answer 2

Where and how to store many GB of images for a website?
Use SDK for access.