Struct RequestEnv 

#[non_exhaustive]
pub struct RequestEnv<'a> {
    pub request: Arc<Request>,
    pub crawler: CrawlerHandle,
    pub events: &'a EventBus,
    pub overrides: AttemptOverrides,
}

Per-attempt inputs supplied to CrawlerKind::execute.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

request: Arc<Request>

The request being executed.

crawler: CrawlerHandle

A weak back-reference to the running crawler.

events: &'a EventBus

The crawler’s event bus.

overrides: AttemptOverrides

Overrides carried from the previous attempt of this request.

Implementations

impl<'a> RequestEnv<'a>

pub fn duplicate(&self) -> RequestEnv<'a>

Clones these per-attempt inputs so one attempt can try a second execution path (e.g. smart HTTP-first promotion re-executing through a browser kind). The struct is non-exhaustive, so only core can provide this.