Crate fastrace_datadog 

fastrace-datadog

Datadog reporter for fastrace.

[!WARNING]

fastrace-datadog is deprecated in favor of fastrace-opentelemetry.

The Datadog Agent ingests OTLP natively, so traces can be sent through fastrace-opentelemetry instead.

See Migration below.

Migration to fastrace-opentelemetry

The Datadog Agent ingests OTLP natively. First, enable OTLP ingestion in your Agent (see Datadog’s OTLP ingest docs). Then replace the reporter with fastrace-opentelemetry pointed at the Agent’s OTLP endpoint (gRPC 4317 by default). Your instrumentation (Span::root, #[trace], …) stays the same — only the reporter setup changes.

Update your dependencies:

[dependencies]
fastrace = { version = "0.7", features = ["enable"] }
fastrace-opentelemetry = { version = "0.18.0" }
opentelemetry = { version = "0.32.0", default-features = false, features = ["trace"] }
opentelemetry-otlp = { version = "0.32.0", default-features = false, features = ["trace", "grpc-tonic"] }
opentelemetry_sdk = { version = "0.32.0", default-features = false, features = ["trace"] }

Before (deprecated):

let reporter = fastrace_datadog::DatadogReporter::new(
    "127.0.0.1:8126".parse().unwrap(),
    "my-service",
    "db",
    "select",
);
fastrace::set_reporter(reporter, Config::default());

After (OTLP to the Datadog Agent):

use std::borrow::Cow;

use fastrace::collector::Config;
use fastrace_opentelemetry::OpenTelemetryReporter;
use opentelemetry::InstrumentationScope;
use opentelemetry::KeyValue;
use opentelemetry_otlp::SpanExporter;
use opentelemetry_otlp::WithExportConfig;
use opentelemetry_sdk::Resource;

let reporter = OpenTelemetryReporter::new(
    SpanExporter::builder()
        .with_tonic()
        .with_endpoint("http://127.0.0.1:4317".to_string()) // Datadog Agent OTLP endpoint
        .with_protocol(opentelemetry_otlp::Protocol::Grpc)
        .with_timeout(opentelemetry_otlp::OTEL_EXPORTER_OTLP_TIMEOUT_DEFAULT)
        .build()
        .expect("initialize otlp exporter"),
    Cow::Owned(
        Resource::builder()
            .with_service_name("my-service")
            .with_attributes([KeyValue::new("span.resource", "db")])
            .with_attributes([KeyValue::new("span.type", "select")])
            .build(),
    ),
    InstrumentationScope::builder("my-crate")
        .with_version(env!("CARGO_PKG_VERSION"))
        .build(),
);
fastrace::set_reporter(reporter, Config::default());

Dependencies

[dependencies]
fastrace = "0.7"
fastrace-datadog = "0.7"

Setup Datadog Agent

Please follow the Datadog official documentation.

cargo run --example synchronous

Report to Datadog Agent

use std::net::SocketAddr;

use fastrace::collector::Config;
use fastrace::prelude::*;

// Initialize reporter
let reporter = fastrace_datadog::DatadogReporter::new(
    "127.0.0.1:8126".parse().unwrap(),
    "asynchronous",
    "db",
    "select",
);
fastrace::set_reporter(reporter, Config::default());

{
    // Start tracing
    let root = Span::root("root", SpanContext::random());
}

fastrace::flush();

Structs

DatadogReporter

Datadog reporter for fastrace in msgpack format.