Trait MetricsSource

pub trait MetricsSource: Send + 'static {
    // Required method
    fn encode_openmetrics(&self, writer: &mut impl Write) -> Result<(), Error>;

    // Provided method
    fn encode_openmetrics_to_string(&self) -> Result<String, Error> { ... }
}

Helper trait to abstract over different ways to access metrics.

Required Methods

fn encode_openmetrics(&self, writer: &mut impl Write) -> Result<(), Error>

Encodes all metrics into a string in the OpenMetrics text format.

This is expected to also write the terminal # EOF\n string expected by the OpenMetrics format.

Provided Methods

fn encode_openmetrics_to_string(&self) -> Result<String, Error>

Encodes the metrics in the OpenMetrics text format into a newly allocated string.

See also Self::encode_openmetrics.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl MetricsSource for Arc<Registry>

Available on crate feature service only.

fn encode_openmetrics(&self, writer: &mut impl Write) -> Result<(), Error>

Implementors

impl MetricsSource for GlobalRegistry

Available on crate feature static_core only.

impl MetricsSource for Registry

impl MetricsSource for RwLockRegistry

Available on crate feature service only.