Crate scuffle_metrics

A wrapper around opentelemetry to provide a more ergonomic interface for creating metrics.

This crate can be used together with the scuffle-bootstrap-telemetry crate which provides a service that integrates with the scuffle-bootstrap ecosystem.

See the changelog for a full release history.

Feature flags

• prometheus (enabled by default) — Enables prometheus support
• tracing — Enables tracing support
• docs — Enables changelog and documentation of feature flags

Example

#[scuffle_metrics::metrics]
mod example {
    use scuffle_metrics::{MetricEnum, collector::CounterU64};

    #[derive(MetricEnum)]
    pub enum Kind {
        Http,
        Grpc,
    }

    #[metrics(unit = "requests")]
    pub fn request(kind: Kind) -> CounterU64;
}

// Increment the counter
example::request(example::Kind::Http).incr();

For details see metrics!.

License

This project is licensed under the MIT or Apache-2.0 license. You can choose between one of them if you use this work.

SPDX-License-Identifier: MIT OR Apache-2.0

Modules

prometheusprometheus

A copy of the opentelemetry-prometheus crate, updated to work with the latest version of opentelemetry.

collector

Metrics collectors.

changelog

Changelogs generated by [scuffle_changelog]

Re-exports

pub use collector::CounterF64;

pub use collector::CounterU64;

pub use collector::GaugeF64;

pub use collector::GaugeI64;

pub use collector::GaugeU64;

pub use collector::HistogramF64;

pub use collector::HistogramU64;

pub use collector::UpDownCounterF64;

pub use collector::UpDownCounterI64;

pub use opentelemetry;

Derive Macros

MetricEnum

Implements a conversion Into<opentelemetry::Value> for the enum. This allows the enum to be used as a metric label.

Attribute Macros

metrics

A macro used to create metric handlers.