Struct PanicReporter

pub struct PanicReporter { /* private fields */ }

A middleware that triggers a callback when the worker is panicking.

Mostly useful for logging or metrics publishing. The callback received the object with which panic was originally invoked to allow down-casting.

Examples

use actix_web_lab::middleware::PanicReporter;

App::new().wrap(PanicReporter::new(|_| metrics::increment_counter!("panic")))

Implementations

impl PanicReporter

pub fn new(callback: impl Fn(&(dyn Any + Send)) + 'static) -> Self

Constructs new panic reporter middleware with callback.

Trait Implementations

impl Clone for PanicReporter

fn clone(&self) -> PanicReporter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PanicReporter

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

Formats the value using the given formatter.

impl<S, Req> Transform<S, Req> for PanicReporter

where S: Service<Req>, S::Future: 'static,

type Response = <S as Service<Req>>::Response

Responses produced by the service.

type Error = <S as Service<Req>>::Error

Errors produced by the service.

type Transform = PanicReporterMiddleware<S>

The TransformService value created by this factory

type InitError = ()

Errors produced while building a transform service.

type Future = Ready<Result<<PanicReporter as Transform<S, Req>>::Transform, <PanicReporter as Transform<S, Req>>::InitError>>

The future response value.

fn new_transform(&self, service: S) -> Self::Future

Creates and returns a new Transform component, asynchronously