How to set up in ngnix so that a download request is issued during direct access?

Question

Apache HTTP Server

We switched to another hosting, and there ngnix is ​​configured to distribute statics.
It is necessary that when accessing certain types of files in certain folders (mp3 mp4 png), an offer to download the file was issued. Now the file is played directly in the browser. Of course, you can process these files through Apache, but it turns out wrong ...

Answer 1

Something like this:

if ($request_filename ~ "([^/]+\.(mp3|mp4|png))$"){
    set $fname $1;
    add_header Content-Disposition 'attachment; filename="$fname"';
}