klauthed-observability

Observability for klauthed services: structured logging/tracing, Prometheus metrics, and OpenTelemetry trace export — all from one TelemetryConfig.

init installs the global tracing subscriber (and, per feature + config, the metrics recorder and the OTLP trace pipeline) and returns a Telemetry handle. Keep it alive for the program's lifetime; dropping it flushes OpenTelemetry spans.

use klauthed_observability::{init, TelemetryConfig};
use klauthed_core::config::Profile;

let config = TelemetryConfig::for_profile(&Profile::detect(), "billing-api");
let _telemetry = init(&config).expect("telemetry init");
tracing::info!("service starting");

Features

With otel, the propagation module carries W3C trace context across service boundaries: extract a parent context from an inbound request's headers, and inject / inject_current the active span into outbound request headers. Paired with klauthed-web's RequestTracing middleware, this stitches per-service spans into a single distributed trace.

Part of the klauthed rust-libraries workspace. Browse the API: cargo doc -p klauthed-observability --open.

License

Dual-licensed under MIT or Apache-2.0, at your option.