Struct ErrorRailLayer 

pub struct ErrorRailLayer<C> { /* private fields */ }

A Tower Layer that wraps service errors in ComposableError with context.

This layer intercepts errors from the wrapped service and adds the configured context, making it easy to add consistent error context at service boundaries.

Type Parameters

• C - The context type, must implement IntoErrorContext and Clone

Example

use error_rail::tower::ErrorRailLayer;
use tower::ServiceBuilder;

// Add static context
let layer = ErrorRailLayer::new("user-service");

// Or use structured context
let layer = ErrorRailLayer::new(error_rail::group!(
    tag("service"),
    metadata("version", "1.0")
));

Implementations

impl<C> ErrorRailLayer<C>

pub fn new(context: C) -> Self

Creates a new ErrorRailLayer with the given context.

The context will be attached to all errors from the wrapped service.

pub fn context(&self) -> &C

Returns a reference to the context.

Trait Implementations

impl<C: Clone> Clone for ErrorRailLayer<C>

fn clone(&self) -> ErrorRailLayer<C>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<C: Debug> Debug for ErrorRailLayer<C>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<S, C: Clone> Layer<S> for ErrorRailLayer<C>

type Service = ErrorRailService<S, C>

The wrapped service

fn layer(&self, inner: S) -> Self::Service

Wrap the given service with the middleware, returning a new service that has been decorated with the middleware.