uwsgi_store

The uwsgi_store directive is used in NGINX configurations to specify that the response content from a uWSGI server should be stored in a file system location. This directive takes one argument that identifies the file path where the response will be saved. The feature is particularly useful for caching or logging the output of uWSGI responses, allowing the server to reuse the content without needing to query the upstream server repeatedly.

When a request reaches the specified location in NGINX that includes the uwsgi_store directive, NGINX will forward the request to the designated uWSGI server. Upon receiving the response, NGINX will write the content to the file indicated in the argument of uwsgi_store. This mechanism helps relieve the load on the uWSGI application by reducing the number of times it needs to generate the same content. The stored file can then be served directly by NGINX or processed further as needed.

The file path given must have the necessary permissions for NGINX to write to it. If the provided path is invalid or NGINX lacks write permissions, the directive will lead to errors in handling the requests. Therefore, it's essential to ensure proper configuration of file system permissions and path validity when using uwsgi_store. Additionally, care must be taken to handle file overwrites, as this can impact previously stored responses.