Trait Layer 

pub trait Layer<H> {
    type Handler;

    // Required method
    fn layer(&self, inner: H) -> Self::Handler;
}

A function from one handler to another. Apply with HandlerExt::with, or to one registration with the layer step of the chain that mounts it.

Required Associated Types

type Handler

The handler type produced by this layer.

Required Methods

fn layer(&self, inner: H) -> Self::Handler

Wrap inner and return the composed handler.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<H, Inner, Outer> Layer<H> for Stack<Inner, Outer>

where Inner: Layer<H>, Outer: Layer<Inner::Handler>,

type Handler = <Outer as Layer<<Inner as Layer<H>>::Handler>>::Handler

impl<H> Layer<H> for Identity

type Handler = H

impl<H> Layer<H> for MetricsLayer

type Handler = MetricsHandler<H>

impl<H> Layer<H> for OpenTelemetryLayer

type Handler = OpenTelemetryHandler<H>

impl<H> Layer<H> for OtelConsumeLayer

type Handler = OtelConsumeHandler<H>

impl<H> Layer<H> for TracingLayer

type Handler = TracingHandler<H>

impl<I, H> Layer<H> for DynStack<I>

where I: Sync, H: Handler<I>,

type Handler = DynStackHandler<I, H>