1 files changed, 27 insertions, 0 deletions
diff --git a/crates/router/src/processor/grpc.rs b/crates/router/src/processor/grpc.rs
new file mode 100644
index 0000000..344f2a1
--- /dev/null
+++ b/crates/router/src/processor/grpc.rs
@@ -0,0 +1,27 @@
+pub mod interceptor {
+    use opentelemetry::global;
+    use tonic::{
+        Status,
+        service::{Interceptor, interceptor::InterceptedService},
+        transport::Channel,
+    };
+    use tracing::Span;
+    use tracing_opentelemetry::OpenTelemetrySpanExt;
+    use warden_stack::tracing::telemetry::tonic::injector;
+
+    pub type Intercepted = InterceptedService<Channel, MyInterceptor>;
+
+    #[derive(Clone, Copy)]
+    pub struct MyInterceptor;
+
+    impl Interceptor for MyInterceptor {
+        fn call(&mut self, mut request: tonic::Request<()>) -> Result<tonic::Request<()>, Status> {
+            let cx = Span::current().context();
+            global::get_text_map_propagator(|propagator| {
+                propagator.inject_context(&cx, &mut injector::MetadataMap(request.metadata_mut()))
+            });
+
+            Ok(request)
+        }
+    }
+}