I have a PHP site hosted on a dedicated Plesk.
I have a function that does a lot of things and takes time (processing a lot of data, etc.).

When I run it in the browser I get a 504 Gateway Time-out error

I tried adding additional directives in nginx settings. But I feel like it’s not working.

My final URLs look like this:
The 18 is an id and can change
Code:
https://example.org/my/slow/function/18?action=launch

I tried this :
NGINX:

location ~ /my/slow/function/(.*) {
    proxy_connect_timeout 600s;
    proxy_send_timeout 600s;
    proxy_read_timeout 600s;
    fastcgi_send_timeout 600s;
    fastcgi_read_timeout 600s;
}

I have a 404 page from plesk

Then, i tried this :
NGINX:

location ~ https://example.org/my/slow/function/(.*) {
    proxy_connect_timeout 600s;
    proxy_send_timeout 600s;
    proxy_read_timeout 600s;
    fastcgi_send_timeout 600s;
    fastcgi_read_timeout 600s;
}

I no longer have a 404, but the instructions don’t seem to be taken into account since I still have a 504.
Nevertheless, the operations of my code are carried out well

Any help ?

I tried multiples config..