uwsgi_pass_request_body
The uwsgi_pass_request_body directive controls whether the request body is passed to the uWSGI server alongside the request headers.
Description
The uwsgi_pass_request_body directive is a flag that determines if the request body should be sent to a uWSGI server when a request is proxied using uwsgi_pass. When set to on, the request body is transferred to the backend uWSGI application, allowing it to process data such as form submissions, file uploads, or other payloads contained in the body of HTTP requests. Conversely, when set to off, the request body is not sent, which may be useful in scenarios where only header information is needed and the request body can be ignored, potentially improving performance by reducing the data transferred.
This directive can be configured within the http, server, or location context, making it versatile and applicable to various configurations. It is particularly important in applications that handle HTTP methods that typically have bodies, such as POST or PUT. The behavior of this directive directly impacts how the uWSGI server interacts with the received requests; for instance, if a request that requires a body is sent while uwsgi_pass_request_body is off, the uWSGI application will receive a notification about the lack of body data, which can lead to errors if not handled correctly.
Config Example
location /api {
uwsgi_pass unix:/tmp/myapp.sock;
uwsgi_pass_request_body off;
}Ensure the backend application is prepared to handle requests without a body when set to 'off'.
Using 'off' may lead to issues with HTTP methods like POST that generally require a body. Avoid this if the body is needed by the application.