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67 lines
1.8 KiB
Markdown
67 lines
1.8 KiB
Markdown
---
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title: Sentry
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menu: docs_patterns
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weight: 1020
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---
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# Sentry Crash Reporting
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[Sentry](https://sentry.io/) is a crash reporting system that supports the
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failure crate which is the base of the actix error reporting. With a
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middleware it's possible to automatically report server errors to Sentry.
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# Middleware
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This middleware captures any error in the server error range (500 - 599)
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and sends the attached error to sentry with its stacktrace.
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To use the middleware the [sentry crate](https://crates.io/crates/sentry) needs to be
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initialized and configured and the [sentry-actix middleware](https://crates.io/crates/sentry-actix)
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needs to be added. Additionally it makes sense to also register the panic handler
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to be informed about hard panics.
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```rust
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extern crate sentry;
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extern crate sentry_actix;
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use sentry_actix::SentryMiddleware;
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use std::env;
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fn main() {
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sentry::init("SENTRY_DSN_GOES_HERE");
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env::set_var("RUST_BACKTRACE", "1");
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sentry::integrations::panic::register_panic_handler();
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let mut app = App::with_state(state)
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.middleware(SentryMiddleware::new())
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// ...
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}
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```
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# Reusing the Hub
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If you use this integration the default sentry hub (`Hub::current()`) is typically the wrong one.
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To get the request specific one you need to use the `ActixWebHubExt` trait:
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```rust
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use sentry::{Hub, Level};
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use sentry_actix::ActixWebHubExt;
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let hub = Hub::from_request(req);
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hub.capture_message("Something is not well", Level::Warning);
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```
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The hub can also be made current for the duration of a call. Then `Hub::current()` works correctly
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until the end of the `run` block.
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```rust
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use sentry::{Hub, Level};
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use sentry_actix::ActixWebHubExt;
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let hub = Hub::from_request(req);
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Hub::run(hub, || {
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sentry::capture_message("Something is not well", Level::Warning);
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});
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```
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