Function log_access 

async fn log_access(
    loggers: &[Sender<LogMessage>],
    request_parts: &Parts,
    socket_data: &SocketData,
    auth_user: Option<&str>,
    status_code: u16,
    content_length: Option<u64>,
    date_format: Option<&str>,
    log_format: Option<&str>,
    log_json_props: Option<&HashMap<String, ServerConfigurationValue>>,
)

Sends an access log message using either text or JSON formatting