OpenTelemetry Rust Configuration

You can get help Getting Started with OpenTelemetry for Rust by referring to the official documentation.

This example uses the snippet found here as its basis.

use opentelemetry_api::{KeyValue, trace::Tracer};
use opentelemetry_sdk::{trace::{self, RandomIdGenerator, Sampler}, Resource};
use opentelemetry_sdk::util::tokio_interval_stream;
use opentelemetry_otlp::{Protocol, WithExportConfig, ExportConfig};
use std::time::Duration;
use tonic::metadata::*;

fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync + 'static>> {
    let mut map = MetadataMap::with_capacity(1);

    map.insert("authorization", "Basic <your-encoded-opentelemetry-auth-header-value>".parse().unwrap());

    let tracer = opentelemetry_otlp::new_pipeline()
        .tracing()
        .with_exporter(
            opentelemetry_otlp::new_exporter()
            .tonic()
            .with_endpoint("https://<your-opentelemetry-endpoint-address>:<your-opentelemetry-endpoint-port>")
            .with_metadata(map)
        )
        // The trace config below should be amended to your requirements
        .with_trace_config(
            trace::config()
                .with_sampler(Sampler::AlwaysOn)
                .with_id_generator(RandomIdGenerator::default())
                .with_max_events_per_span(64)
                .with_max_attributes_per_span(16)
                .with_max_events_per_span(16)
                .with_resource(Resource::new(vec![KeyValue::new("service.name", "example")])),
        )
        .install_batch(opentelemetry::runtime::Tokio)?;

    let export_config = ExportConfig {
        endpoint: "https://<your-opentelemetry-endpoint-address>:<your-opentelemetry-endpoint-port>".to_string(),
        protocol: Protocol::<your-opentelemetry-protocol>
    };

    tracer.in_span("doing_work", |cx| {
        // Traced app logic here...
    });

    Ok(())
}

For more information about exporter configuration with Rust please see the documentation here

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