Trait Downloader 

pub trait Downloader:
    Send
    + Sync
    + 'static {
    type Client: Send + Sync;

    // Required methods
    fn download<'life0, 'async_trait>(
        &'life0 self,
        request: Request,
    ) -> Pin<Box<dyn Future<Output = Result<Response, SpiderError>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait;
    fn client(&self) -> &Self::Client;
}

Trait implemented by HTTP downloaders used by the crawler runtime.

Required Associated Types

type Client: Send + Sync

Concrete HTTP client type used by the downloader.

Required Methods

fn download<'life0, 'async_trait>( &'life0 self, request: Request, ) -> Pin<Box<dyn Future<Output = Result<Response, SpiderError>> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

Executes the HTTP transaction for a request.

Errors

Returns an error when request execution fails.

fn client(&self) -> &Self::Client

Returns the underlying client value used by this downloader.

Implementors

impl Downloader for ReqwestClientDownloader

type Client = Client