srcache_store_skip
The `srcache_store_skip` directive specifies conditions under which NGINX should skip storing responses in the subrequest caching mechanism.
Description
The srcache_store_skip directive is part of the ngx_srcache module, which enables transparent subrequest-based caching for NGINX. This directive allows users to define specific conditions or criteria for skipping the response caching process for subrequests. By setting the srcache_store_skip directive, administrators can effectively control which responses should not be cached based on customizable conditions defined in NGINX's configuration context.
The syntax for defining the srcache_store_skip directive usually involves a single argument, which specifies one or more conditions in the form of variable expressions. These expressions typically return a boolean-like outcome (true/false), determining whether the response from a subrequest should be considered for caching. If the specified condition evaluates to true, the caching process is aborted for that particular response. This feature provides greater flexibility in caching scenarios, especially for dynamic content or responses where caching may not be favorable.
You might typically find this directive in various contexts, including http, server, location, and within conditional if blocks inside a location context. This flexibility allows for granular caching strategies tailored to the needs of different application scenarios or specific URIs that might require distinct caching behaviors.
Config Example
location /example {
srcache_store_skip $arg_no_cache;
srcache_store my_store;
}Ensure that the expression is valid and evaluates as expected; otherwise, caching may not behave as intended.
Using complex expressions can introduce parsing errors; keep conditions simple for ease of debugging.