rename layer in example

Author: jan-xyz

opentelemetry-instrumentation-tower/examples/axum-http-service/src/main.rs

@@ -59,13 +59,13 @@ async fn main() {
 
     global::set_meter_provider(meter_provider);
 
-    let otel_metrics_service_layer = HTTPLayer::new();
+    let otel_service_layer = HTTPLayer::new();
 
     let app = Router::new()
         .route("/", get(handle))
         .route("/", post(handle))
         .route("/", put(handle))
-        .layer(otel_metrics_service_layer);
+        .layer(otel_service_layer);
 
     let listener = tokio::net::TcpListener::bind("0.0.0.0:5000").await.unwrap();
     let server = axum::serve(listener, app);

opentelemetry-instrumentation-tower/examples/hyper-http-service/src/main.rs

@@ -64,10 +64,10 @@ async fn main() {
 
     global::set_meter_provider(meter_provider);
 
-    let otel_metrics_service_layer = HTTPLayer::new();
+    let otel_service_layer = HTTPLayer::new();
 
     let tower_service = ServiceBuilder::new()
-        .layer(otel_metrics_service_layer)
+        .layer(otel_service_layer)
         .service_fn(handle);
     let hyper_service = hyper_util::service::TowerToHyperService::new(tower_service);