gistfile1.txt

nginx conf that capture body for specific location:

```
http {

    log_format l2met 'measure#nginx.service=$request_time request_id=$http_x_request_id';
    log_format capturebody "request_body = $request_body";
    access_log logs/nginx/access.log l2met;
    error_log logs/nginx/error.log;

    server {

        location /path/to/log {
            set $xxxx $request_body;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_pass http://app_server;
            
            access_log logs/nginx/access.log capturebody;
        }

        location / {
            set $xxxx "NOT_LOGGED";
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_pass http://app_server;
        }
    }
}
```