Trait tower::filter::AsyncPredicate [−][src]
pub trait AsyncPredicate<Request> { type Future: Future<Output = Result<Self::Request, BoxError>>; type Request; fn check(&mut self, request: Request) -> Self::Future; }
This is supported on crate feature
filter
only.Checks a request asynchronously.
Associated Types
type Future: Future<Output = Result<Self::Request, BoxError>>
[src]
The future returned by check
.
type Request
[src]
The type of requests returned by check
.
This request is forwarded to the inner service if the predicate succeeds.
Required methods
fn check(&mut self, request: Request) -> Self::Future
[src]
Check whether the given request should be forwarded.
If the future resolves with Ok
, the request is forwarded to the inner service.
Implementors
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