AWS SDK

        runtime_components.push_interceptor(crate::observability_feature::ObservabilityFeatureTrackerInterceptor);

mod observability_feature;

// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.

/*

 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.

 * SPDX-License-Identifier: Apache-2.0

 */

use aws_smithy_runtime::client::sdk_feature::SmithySdkFeature;

use aws_smithy_runtime_api::{

    box_error::BoxError,

    client::interceptors::{context::BeforeSerializationInterceptorContextRef, Intercept},

};

use aws_smithy_types::config_bag::ConfigBag;

// Interceptor that tracks Smithy SDK features for observability (tracing/metrics).

#[derive(Debug, Default)]

pub(crate) struct ObservabilityFeatureTrackerInterceptor;

impl Intercept for ObservabilityFeatureTrackerInterceptor {

    fn name(&self) -> &'static str {

        "ObservabilityFeatureTrackerInterceptor"

    }

    fn read_before_execution(&self, _context: &BeforeSerializationInterceptorContextRef<'_>, cfg: &mut ConfigBag) -> Result<(), BoxError> {

        // Check if an OpenTelemetry meter provider is configured via the global provider

        if let Ok(telemetry_provider) = aws_smithy_observability::global::get_telemetry_provider() {

            let meter_provider = telemetry_provider.meter_provider();

            // Check the provider name to detect OpenTelemetry without importing the otel crate

            // This avoids compilation issues with the opentelemetry dependency

            if meter_provider.provider_name() == "otel" {

                cfg.interceptor_state().store_append(SmithySdkFeature::ObservabilityOtelMetrics);

            }

        }

        Ok(())

    }

}

version = "1.5.18"

[dependencies.aws-smithy-observability]

path = "../aws-smithy-observability"

version = "0.1.5"

        runtime_components.push_interceptor(crate::observability_feature::ObservabilityFeatureTrackerInterceptor);

mod observability_feature;

// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.

/*

 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.

 * SPDX-License-Identifier: Apache-2.0

 */

use aws_smithy_runtime::client::sdk_feature::SmithySdkFeature;

use aws_smithy_runtime_api::{

    box_error::BoxError,

    client::interceptors::{context::BeforeSerializationInterceptorContextRef, Intercept},

};

use aws_smithy_types::config_bag::ConfigBag;

// Interceptor that tracks Smithy SDK features for observability (tracing/metrics).

#[derive(Debug, Default)]

pub(crate) struct ObservabilityFeatureTrackerInterceptor;

impl Intercept for ObservabilityFeatureTrackerInterceptor {

    fn name(&self) -> &'static str {

        "ObservabilityFeatureTrackerInterceptor"

    }

    fn read_before_execution(&self, _context: &BeforeSerializationInterceptorContextRef<'_>, cfg: &mut ConfigBag) -> Result<(), BoxError> {

        // Check if an OpenTelemetry meter provider is configured via the global provider

        if let Ok(telemetry_provider) = aws_smithy_observability::global::get_telemetry_provider() {

            let meter_provider = telemetry_provider.meter_provider();

            // Check the provider name to detect OpenTelemetry without importing the otel crate

            // This avoids compilation issues with the opentelemetry dependency

            if meter_provider.provider_name() == "otel" {

                cfg.interceptor_state().store_append(SmithySdkFeature::ObservabilityOtelMetrics);

            }

        }

        Ok(())

    }

}

version = "1.5.18"

[dependencies.aws-smithy-observability]

path = "../aws-smithy-observability"

version = "0.1.5"

version = "1.5.18"

        runtime_components.push_interceptor(crate::observability_feature::ObservabilityFeatureTrackerInterceptor);

mod observability_feature;

// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.

/*

 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.

 * SPDX-License-Identifier: Apache-2.0

 */

use aws_smithy_runtime::client::sdk_feature::SmithySdkFeature;

use aws_smithy_runtime_api::{

    box_error::BoxError,

    client::interceptors::{context::BeforeSerializationInterceptorContextRef, Intercept},

};

use aws_smithy_types::config_bag::ConfigBag;

// Interceptor that tracks Smithy SDK features for observability (tracing/metrics).

#[derive(Debug, Default)]

pub(crate) struct ObservabilityFeatureTrackerInterceptor;

impl Intercept for ObservabilityFeatureTrackerInterceptor {

    fn name(&self) -> &'static str {

        "ObservabilityFeatureTrackerInterceptor"

    }

    fn read_before_execution(&self, _context: &BeforeSerializationInterceptorContextRef<'_>, cfg: &mut ConfigBag) -> Result<(), BoxError> {

        // Check if an OpenTelemetry meter provider is configured via the global provider

        if let Ok(telemetry_provider) = aws_smithy_observability::global::get_telemetry_provider() {

            let meter_provider = telemetry_provider.meter_provider();

            // Check the provider name to detect OpenTelemetry without importing the otel crate

            // This avoids compilation issues with the opentelemetry dependency

            if meter_provider.provider_name() == "otel" {

                cfg.interceptor_state().store_append(SmithySdkFeature::ObservabilityOtelMetrics);

            }

        }

        Ok(())

    }

}

/*

 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.

 * SPDX-License-Identifier: Apache-2.0

 */

use aws_config::Region;

use aws_credential_types::Credentials;

use aws_runtime::user_agent::test_util::assert_ua_contains_metric_values;

use aws_sdk_dynamodb::config::Builder;

use aws_smithy_observability::TelemetryProvider;

use aws_smithy_runtime::client::http::test_util::{ReplayEvent, StaticReplayClient};

use aws_smithy_types::body::SdkBody;

use std::sync::Arc;

fn test_client(

    update_builder: fn(Builder) -> Builder,

) -> (aws_sdk_dynamodb::Client, StaticReplayClient) {

    let http_client = StaticReplayClient::new(vec![ReplayEvent::new(

        http::Request::builder()

            .uri("https://dynamodb.us-east-1.amazonaws.com/")

            .body(SdkBody::empty())

            .unwrap(),

        http::Response::builder()

            .status(200)

            .body(SdkBody::from(r#"{"TableNames":[]}"#))

            .unwrap(),

    )]);

    let config = update_builder(

        aws_sdk_dynamodb::Config::builder()

            .credentials_provider(Credentials::for_tests())

            .region(Region::from_static("us-east-1"))

            .http_client(http_client.clone())

            .behavior_version_latest(),

    )

    .build();

    (aws_sdk_dynamodb::Client::from_conf(config), http_client)

}

async fn call_operation(client: aws_sdk_dynamodb::Client) {

    let _ = client.list_tables().send().await;

}

// Mock OTel meter provider for testing

// This mimics the real OtelMeterProvider's type name without requiring the broken opentelemetry crate

// We create it in a module path that matches what our type checking looks for

mod mock_otel {

    use aws_smithy_observability::meter::{Meter, ProvideMeter};

    use aws_smithy_observability::Attributes;

    #[derive(Debug)]

    pub struct OtelMeterProvider;

    impl ProvideMeter for OtelMeterProvider {

        fn get_meter(&self, _scope: &'static str, _attributes: Option<&Attributes>) -> Meter {

            // Return a noop meter - we don't actually need it to work, just to exist

            Meter::new(std::sync::Arc::new(NoopInstrumentProvider))

        }

        fn provider_name(&self) -> &'static str {

            "otel"

        }

        fn as_any(&self) -> &dyn std::any::Any {

            self

        }

    }

    #[derive(Debug)]

    struct NoopInstrumentProvider;

    impl aws_smithy_observability::instruments::ProvideInstrument for NoopInstrumentProvider {

        fn create_gauge(

            &self,

            _builder: aws_smithy_observability::instruments::AsyncInstrumentBuilder<

                '_,

                std::sync::Arc<dyn aws_smithy_observability::instruments::AsyncMeasure<Value = f64>>,

                f64,

            >,

        ) -> std::sync::Arc<dyn aws_smithy_observability::instruments::AsyncMeasure<Value = f64>>

        {

            std::sync::Arc::new(NoopAsync::<f64>(std::marker::PhantomData))

        }

        fn create_up_down_counter(

            &self,

            _builder: aws_smithy_observability::instruments::InstrumentBuilder<

                '_,

                std::sync::Arc<dyn aws_smithy_observability::instruments::UpDownCounter>,

            >,

        ) -> std::sync::Arc<dyn aws_smithy_observability::instruments::UpDownCounter> {

            std::sync::Arc::new(NoopUpDown)

        }

        fn create_async_up_down_counter(

            &self,

            _builder: aws_smithy_observability::instruments::AsyncInstrumentBuilder<

                '_,

                std::sync::Arc<dyn aws_smithy_observability::instruments::AsyncMeasure<Value = i64>>,

                i64,

            >,

        ) -> std::sync::Arc<dyn aws_smithy_observability::instruments::AsyncMeasure<Value = i64>>

        {

            std::sync::Arc::new(NoopAsync::<i64>(std::marker::PhantomData))

        }

        fn create_monotonic_counter(

            &self,

            _builder: aws_smithy_observability::instruments::InstrumentBuilder<

                '_,

                std::sync::Arc<dyn aws_smithy_observability::instruments::MonotonicCounter>,

            >,

        ) -> std::sync::Arc<dyn aws_smithy_observability::instruments::MonotonicCounter> {

            std::sync::Arc::new(NoopMono)

        }

        fn create_async_monotonic_counter(

            &self,

            _builder: aws_smithy_observability::instruments::AsyncInstrumentBuilder<

                '_,

                std::sync::Arc<dyn aws_smithy_observability::instruments::AsyncMeasure<Value = u64>>,

                u64,

            >,

        ) -> std::sync::Arc<dyn aws_smithy_observability::instruments::AsyncMeasure<Value = u64>>

        {

            std::sync::Arc::new(NoopAsync::<u64>(std::marker::PhantomData))

        }

        fn create_histogram(

            &self,

            _builder: aws_smithy_observability::instruments::InstrumentBuilder<

                '_,

                std::sync::Arc<dyn aws_smithy_observability::instruments::Histogram>,

            >,

        ) -> std::sync::Arc<dyn aws_smithy_observability::instruments::Histogram> {

            std::sync::Arc::new(NoopHist)

        }

    }

    #[derive(Debug)]

    struct NoopAsync<T>(std::marker::PhantomData<T>);

    impl<T: Send + Sync + std::fmt::Debug> aws_smithy_observability::instruments::AsyncMeasure

        for NoopAsync<T>

    {

        type Value = T;

        fn record(

            &self,

            _value: T,

            _attributes: Option<&aws_smithy_observability::Attributes>,

            _context: Option<&dyn aws_smithy_observability::Context>,

        ) {

        }

        fn stop(&self) {}

    }

    #[derive(Debug)]

    struct NoopUpDown;

    impl aws_smithy_observability::instruments::UpDownCounter for NoopUpDown {

        fn add(

            &self,

            _value: i64,

            _attributes: Option<&aws_smithy_observability::Attributes>,

            _context: Option<&dyn aws_smithy_observability::Context>,

        ) {

        }

    }

    #[derive(Debug)]

    struct NoopMono;

    impl aws_smithy_observability::instruments::MonotonicCounter for NoopMono {

        fn add(

            &self,

            _value: u64,

            _attributes: Option<&aws_smithy_observability::Attributes>,

            _context: Option<&dyn aws_smithy_observability::Context>,

        ) {

        }

    }

    #[derive(Debug)]

    struct NoopHist;

    impl aws_smithy_observability::instruments::Histogram for NoopHist {

        fn record(

            &self,

            _value: f64,

            _attributes: Option<&aws_smithy_observability::Attributes>,

            _context: Option<&dyn aws_smithy_observability::Context>,

        ) {

        }

    }

}

#[tokio::test]

async fn observability_metrics_in_user_agent() {

    // Test case 1: No telemetry provider configured (default noop)

    {

        let (client, http_client) = test_client(std::convert::identity);

        call_operation(client).await;

        let req = http_client.actual_requests().last().expect("request");

        let user_agent = req.headers().get("x-amz-user-agent").expect("user-agent header");

        // Should NOT contain observability metrics when using noop provider

        assert!(!user_agent.contains("m/7")); // OBSERVABILITY_OTEL_METRICS = "7"

    }

    // Test case 2: OpenTelemetry metrics provider configured

    {

        use mock_otel::OtelMeterProvider;

        // Create mock OTel meter provider

        let sdk_mp = Arc::new(OtelMeterProvider);

        // Debug: Check what the type name actually is

        let type_name = std::any::type_name_of_val(&sdk_mp);

        eprintln!("Mock OTel provider Arc type name: {}", type_name);

        let type_name2 = std::any::type_name_of_val(sdk_mp.as_ref());

        eprintln!("Mock OTel provider as_ref type name: {}", type_name2);

        let sdk_tp = TelemetryProvider::builder().meter_provider(sdk_mp).build();

        // Set global telemetry provider

        aws_smithy_observability::global::set_telemetry_provider(sdk_tp).unwrap();

        let (client, http_client) = test_client(std::convert::identity);

        call_operation(client).await;

        let req = http_client.actual_requests().last().expect("request");

        let user_agent = req.headers().get("x-amz-user-agent").expect("user-agent header");

        eprintln!("User-Agent: {}", user_agent);

        // Should contain OBSERVABILITY_OTEL_METRICS metric

        assert_ua_contains_metric_values(user_agent, &["7"]);

        // Reset to noop for other tests

        aws_smithy_observability::global::set_telemetry_provider(TelemetryProvider::noop())

            .unwrap();

    }

}

version = "1.5.18"

[dependencies.aws-smithy-observability]

path = "../aws-smithy-observability"

version = "0.1.5"

version = "1.5.18"

        runtime_components.push_interceptor(crate::observability_feature::ObservabilityFeatureTrackerInterceptor);

mod observability_feature;

// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.

/*

 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.

 * SPDX-License-Identifier: Apache-2.0

 */

use aws_smithy_runtime::client::sdk_feature::SmithySdkFeature;

use aws_smithy_runtime_api::{

    box_error::BoxError,

    client::interceptors::{context::BeforeSerializationInterceptorContextRef, Intercept},

};

use aws_smithy_types::config_bag::ConfigBag;

// Interceptor that tracks Smithy SDK features for observability (tracing/metrics).

#[derive(Debug, Default)]

pub(crate) struct ObservabilityFeatureTrackerInterceptor;

impl Intercept for ObservabilityFeatureTrackerInterceptor {

    fn name(&self) -> &'static str {

        "ObservabilityFeatureTrackerInterceptor"

    }

    fn read_before_execution(&self, _context: &BeforeSerializationInterceptorContextRef<'_>, cfg: &mut ConfigBag) -> Result<(), BoxError> {

        // Check if an OpenTelemetry meter provider is configured via the global provider

        if let Ok(telemetry_provider) = aws_smithy_observability::global::get_telemetry_provider() {

            let meter_provider = telemetry_provider.meter_provider();

            // Check the provider name to detect OpenTelemetry without importing the otel crate

            // This avoids compilation issues with the opentelemetry dependency

            if meter_provider.provider_name() == "otel" {

                cfg.interceptor_state().store_append(SmithySdkFeature::ObservabilityOtelMetrics);

            }

        }

        Ok(())

    }

}