How to send traffic of some endpoints to a different app in Nginx (php + golang)

sites.conf

upstream @api_golang {
    server 127.0.0.1:8080; # same node
    server 111.222.111.222:8080;
}

upstream @api_php {
    server 127.0.0.1:80; # nginx/apache/... - another node
    server 111.222.111.222:80; # nginx/apache/... - another node
}

server {

   # ...

   location = /static/route/rewritten-with-golang/ {
       proxy_pass http://@api_golang/static/route/rewritten-with-golang/;
       proxy_set_header Host "domain.com"; # if you use host! 
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Forwarded-Proto $scheme;
   }

    location ~* \/dynamic-golang/.*/with-regex$ {
       rewrite /(.*) /$1 break;
       proxy_pass http://@api_golang/;
       proxy_set_header Host "domain.com"; # if you use host! 
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Forwarded-Proto $scheme;
    }

    # if php-fpm and nginx are in the same node
    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
    }

    # if you have a main load balancer in a dedicated node
    location / {
       proxy_pass http://@api_php;
       proxy_set_header Host "domain.com";
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
       proxy_set_header X-Forwarded-Proto $scheme;
    }

}

See below links for more information:

• http://nginx.org/en/docs/http/ngx_http_core_module.html#location
• http://nginx.org/en/docs/http/ngx_http_proxy_module.html
• http://nginx.org/en/docs/http/ngx_http_fastcgi_module.html
• http://nginx.org/en/docs/http/ngx_http_upstream_module.html
• http://nginx.org/en/docs/http/ngx_http_limit_req_module.html