Check if a resource is in the cache

[Reinis Rozitis]

> Hello,
> 
> is there a way to check if a requested resource is in the cache?
> 
> For example, “if” has the option “-f”, which could be used to check if a static
> file is present.
> 
> Is there something similar for a cached resource?

Depending on what you want to achieve you could check $upstream_cache_status for  'HIT' ( http://nginx.org/en/docs/http/ngx_http_upstream_module.html?#var_upstream_cache_status )

rr