Struct UserAgentMiddleware 

pub struct UserAgentMiddleware { /* private fields */ }

Middleware that sets and rotates User-Agent headers for outgoing requests.

Implementations

impl UserAgentMiddleware

pub fn builder() -> UserAgentMiddlewareBuilder

Creates a new UserAgentMiddlewareBuilder to start building a UserAgentMiddleware.

Trait Implementations

impl Debug for UserAgentMiddleware

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<C: Send + Sync> Middleware<C> for UserAgentMiddleware

fn name(&self) -> &str

Returns a human-readable middleware name for logs and diagnostics.

fn process_request<'life0, 'life1, 'async_trait>( &'life0 self, _client: &'life1 C, request: Request, ) -> Pin<Box<dyn Future<Output = Result<MiddlewareAction<Request>, SpiderError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Intercepts an outgoing request before the downloader runs.

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

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

Intercepts a successful response after download.

fn handle_error<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, _request: &'life1 Request, error: &'life2 SpiderError, ) -> Pin<Box<dyn Future<Output = Result<MiddlewareAction<Request>, SpiderError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Handles downloader errors for a request.