Re-expose middleware from tonic-tracing-opentelemetry

Author: davidsteiner

Cargo.toml

@@ -13,10 +13,10 @@ categories = ["web-programming"]
 exclude = [".pre-commit-config.yaml"]
 
 [features]
-axum = ["dep:axum", "dep:tokio", "dep:axum-tracing-opentelemetry"]
+axum = ["dep:axum-tracing-opentelemetry"]
+tonic = ["dep:tonic-tracing-opentelemetry"]
 
 [dependencies]
-axum = { version = "^0.8", optional = true }
 axum-tracing-opentelemetry = { version = "0.29", optional = true }
 chrono = "0.4"
 opentelemetry = "0.30"
@@ -26,7 +26,7 @@ opentelemetry-otlp = { version = "0.30", features = ["grpc-tonic", "http-proto"]
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 thiserror = "2.0.12"
-tokio = { version = "1", features = ["signal"], optional = true }
+tonic-tracing-opentelemetry = { version = "0.29", optional = true }
 tracing = "0.1"
 tracing-opentelemetry = "0.31"
 tracing-serde = "0.2"

src/axum.rs

@@ -3,6 +3,6 @@
 //! This module re-exposes the middleware layers provided by the
 //! [`axum-tracing-opentelemetry`] project.
 //!
-//! [`axum-tracing-opentelemetry`]: https://github.com/davidB/axum-tracing-opentelemetry
+//! [`axum-tracing-opentelemetry`]: https://github.com/davidB/tracing-opentelemetry-instrumentation-sdk
 
 pub use axum_tracing_opentelemetry::middleware::{OtelAxumLayer, OtelInResponseLayer};

src/lib.rs

@@ -14,6 +14,8 @@ pub mod axum;
 pub mod error;
 pub mod formatter;
 mod propagator;
+#[cfg(feature = "tonic")]
+pub mod tonic;
 pub mod tracer;
 
 pub use propagator::set_global_propagator;

src/tonic.rs

@@ -0,0 +1,8 @@
+//! Tonic utilities.
+//!
+//! This module re-exposes the middleware layers provided by the
+//! [`tonic-tracing-opentelemetry`] project.
+//!
+//! [`tonic-tracing-opentelemetry`]: https://github.com/davidB/tracing-opentelemetry-instrumentation-sdk
+
+pub use tonic_tracing_opentelemetry::middleware::server::{Filter, OtelGrpcLayer};