nginx cache management

Question

Nginx

Is it possible to reset/refresh the contents of the cache partially?

Those. the cache stores an array of data and only needs to update one page without flushing the entire cache.

Answer 1

Yes, you can.
In the config:
fastcgi_cache_bypass $http_x_update;
In the script when refreshing the page:
curl -s -o /dev/null -H "X-Update: 1" http://www.site.ru/expired_node