Struct ErrorHandlingLayer

pub struct ErrorHandlingLayer { /* private fields */ }

A Tower layer for handling and converting service errors into a custom Error type.

This layer wraps a service and intercepts any errors returned by the service. It attempts to downcast the error into the custom Error enum. If the downcast succeeds, it returns the downcasted Error. If the downcast fails, the original error is wrapped in Error::Failed.

The service’s error type must implement Into<BoxDynError>, allowing for flexible error handling, especially when dealing with trait objects or complex error chains.

Implementations

impl ErrorHandlingLayer

pub fn new() -> Self

Create a new ErrorHandlingLayer

Trait Implementations

impl Clone for ErrorHandlingLayer

fn clone(&self) -> ErrorHandlingLayer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ErrorHandlingLayer

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

Formats the value using the given formatter.

impl Default for ErrorHandlingLayer

fn default() -> Self

Returns the “default value” for a type.

impl<S> Layer<S> for ErrorHandlingLayer

type Service = ErrorHandlingService<S>

The wrapped service

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

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