sentry-slog 0.21.0

Sentry integration for the slog crate.

Sentry Rust SDK: sentry-slog

Sentry slog Integration.

This mainly provides the SentryDrain, which wraps another [slog::Drain] and can be configured to forward [slog::Record]s to Sentry. The SentryDrain can be used to create a slog::Logger.

NOTE: This integration currently does not process any slog::KV pairs, but support for this will be added in the future.


use sentry::{init, ClientOptions};
use sentry_slog::SentryDrain;

let _sentry = sentry::init(());

let drain = SentryDrain::new(slog::Discard);
let root = slog::Logger::root(drain, slog::o!());

slog::info!(root, "recorded as breadcrumb");
slog::warn!(root, "recorded as regular event");

    Some("recorded as breadcrumb")
    Some("recorded as regular event")

slog::crit!(root, "recorded as exception event");

assert_eq!(captured_event.exception.len(), 1);

The Drain can also be customized with a filter, and a mapper:

use sentry_slog::{exception_from_record, LevelFilter, RecordMapping, SentryDrain};

let drain = SentryDrain::new(slog::Discard)
    .filter(|level| match level {
        slog::Level::Critical | slog::Level::Error => LevelFilter::Event,
        _ => LevelFilter::Ignore,
    .mapper(|record, kv| match record.level() {
        slog::Level::Critical | slog::Level::Error => {
            RecordMapping::Event(exception_from_record(record, kv))
        _ => RecordMapping::Ignore,

When a mapper is specified, a corresponding filter should also be provided.


License: Apache-2.0