Trait scrupy::downloader_middleware::DownloaderMiddleware

pub trait DownloaderMiddleware: Send {
    fn process_request(&mut self, request: Request) -> MiddleWareResult;
    fn process_response(
        &mut self, 
        request_content: &RequestContent, 
        response: Response
    ) -> MiddleWareResult;
    fn process_exception(
        &mut self, 
        request_content: &RequestContent, 
        error: &DownloadError
    ) -> MiddleWareExceptionResult;
}

It processes the request before it's sent to the downloader. Typical application includes setting the timeout and redirection policy.

Required Methods

fn process_request(&mut self, request: Request) -> MiddleWareResult

Called when a Request is processed. The subsequent behaviour is determined by MiddleWareResult.

fn process_response(
    &mut self,
    request_content: &RequestContent,
    response: Response
) -> MiddleWareResult

Called when a Response is processed. The subsequent behaviour is determined by MiddleWareResult.

fn process_exception(
    &mut self,
    request_content: &RequestContent,
    error: &DownloadError
) -> MiddleWareExceptionResult

Called when a DownloadError is processed. The subsequent behaviour is determined by MiddleWareExceptionResult.

Implementors