How to limit the number of API requests by key, not by ip?

Question

Nginx

How to use nginx to limit the number of requests, for a certain period of time, to a unique link? I need to limit the number of API requests not by IP, but by key using nginx. Everywhere where saw similar manuals use restrictions on IP.

Answer 1

nginx.org/ru/docs/http/ngx_http_limit_req_module.h...
You can use anything as a key, not necessarily IP.
2 requests per 10 seconds is 12 requests per minute (12r/m)

limit_req_zone $arg_key zone=api:10m rate=12r/m;

location /какой-нужно {
    limit_req zone=api burst=1 nodelay;
}

How the limit works: https://ru.wikipedia.org/wiki/%D0%90%D0%BB%D0%B3%D...

Answer 2

nginx.org/ru/docs/http/ngx_http_secure_link_module.html