Trait Predicate

pub trait Predicate<Request> {
    type Request;

    // Required method
    fn check(&self, request: Request) -> Result<Self::Request, BoxError>;
}

Available on crate feature filter only.

Checks a request synchronously.

Required Associated Types

type Request

The type of requests returned by check.

This request is forwarded to the inner service if the predicate succeeds.

Required Methods

fn check(&self, request: Request) -> Result<Self::Request, BoxError>

Check whether the given request should be forwarded.

If the future resolves with Ok, the request is forwarded to the inner service.

Implementors

impl<F, T, R, E> Predicate<T> for F

where F: Fn(T) -> Result<R, E>, E: Into<BoxError>,

type Request = R