nginx rate limit config sample

default.conf

# https://zhaox.github.io/nginx/2019/09/05/explain-nginx-rate-limit

# 20 per second, 50ms each
limit_req_zone $remote_user zone=user_limit:10m rate=10r/s;
limit_req_zone $my_id zone=one:10m rate=20r/m;

server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;

    location / {
        proxy_pass https://httpbin.org;
    }

    location ~ ^/links/(?<my_id>\d+)/\d+ {
        limit_req zone=one;
        limit_req_status 429;
        proxy_pass https://httpbin.org;
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}