Trait opentelemetry::trace::TracerProvider

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pub trait TracerProvider {
    type Tracer: Tracer;

    // Required method
    fn tracer_with_scope(&self, scope: InstrumentationScope) -> Self::Tracer;

    // Provided method
    fn tracer(&self, name: impl Into<Cow<'static, str>>) -> Self::Tracer { ... }
}
Expand description

Types that can create instances of Tracer.

See the global module for examples of storing and retrieving tracer provider instances.

Required Associated Types§

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type Tracer: Tracer

The Tracer type that this provider will return.

Required Methods§

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fn tracer_with_scope(&self, scope: InstrumentationScope) -> Self::Tracer

Returns a new versioned tracer with the given instrumentation scope.

§Examples
use opentelemetry::{global, InstrumentationScope, trace::TracerProvider};

let provider = global::tracer_provider();

// tracer used in applications/binaries
let tracer = provider.tracer("my_app");

// tracer used in libraries/crates that optionally includes version and schema url
let scope =
    InstrumentationScope::builder(env!("CARGO_PKG_NAME"))
        .with_version(env!("CARGO_PKG_VERSION"))
        .with_schema_url("https://opentelemetry.io/schema/1.0.0")
        .build();

let tracer = provider.tracer_with_scope(scope);

Provided Methods§

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fn tracer(&self, name: impl Into<Cow<'static, str>>) -> Self::Tracer

Returns a new tracer with the given name.

The name should be the application name or the name of the library providing instrumentation. If the name is empty, then an implementation-defined default name may be used instead.

§Examples
use opentelemetry::{global, trace::TracerProvider};
use opentelemetry::KeyValue;

let provider = global::tracer_provider();

// tracer used in applications/binaries
let tracer = provider.tracer("my_app");

Object Safety§

This trait is not object safe.

Implementors§