--- title: Sentry menu: docs_patterns weight: 1020 --- # Sentry Crash Reporting [Sentry](https://sentry.io/) is a crash reporting system that supports the failure crate which is the base of the actix error reporting. With a middleware it's possible to automatically report server errors to Sentry. # Middleware This middleware captures any error in the server error range (500 - 599) and sends the attached error to sentry with its stacktrace. To use the middleware the [sentry crate](https://crates.io/crates/sentry) needs to be initialized and configured and the [sentry-actix middleware](https://crates.io/crates/sentry-actix) needs to be added. Additionally it makes sense to also register the panic handler to be informed about hard panics. {{< include-example example="sentry" file="main.rs" section="middleware" >}} # Reusing the Hub If you use this integration the default sentry hub (`Hub::current()`) is typically the wrong one. To get the request specific one you need to use the `ActixWebHubExt` trait: {{< include-example example="sentry" file="main.rs" section="hub" >}} The hub can also be made current for the duration of a call. Then `Hub::current()` works correctly until the end of the `run` block. {{< include-example example="sentry" file="main.rs" section="hub2" >}}