How to save a file via FileAPI?

Question

JavaScript

How to save a file via FileAPI. Can someone show an example handler?

Answer 1

This is a completely standard code:
https://github.com/mailru/FileAPI/issues/223

Answer 2

I think this topic will also help, dug out https://github.com/mailru/FileAPI/issues/117
In general, the library is super, the main thing would be to figure it out)