Trait ClassifyEos

pub trait ClassifyEos

Trait for classifying end of streams (EOS) as either success or failure.

Associated Types

type FailureClass;

The type of failure classifications.

Required Methods

fn classify_eos(self, trailers: Option<&HeaderMap>) -> Result<(), Self::FailureClass>

Perform the classification from response trailers.

fn classify_error<E>(self, error: &E) -> Self::FailureClass
where
    E: Display + 'static,

Classify an error.

Errors are always errors (doh) but sometimes it might be useful to have multiple classes of errors. A retry policy might allow retrying some errors and not others.

Provided Methods

fn map_failure_class<F, NewClass>(self, f: F) -> MapFailureClass<Self, F>
where
    Self: Sized,
    F: FnOnce(Self::FailureClass) -> NewClass,

Transform the failure classification using a function.

See ClassifyResponse::map_failure_class for more details.

Implementors