Struct MetricsConfig 

pub struct MetricsConfig {
    pub enabled: bool,
    pub path: String,
}

Prometheus metrics endpoint ([metrics] block).

Disabled by default. When enabled = true (and the binary was built with the metrics cargo feature), the server installs a middleware that records per-request HTTP counters and latency histograms, and exposes them in the Prometheus text exposition format at MetricsConfig::path (default /metrics).

The endpoint is mounted at a fixed, unprefixed path — like the health probes — so a scrape config doesn’t need to know about any reverse-proxy server.prefix. It is not behind the [auth] layer: Prometheus scrapers rarely carry bearer tokens, and the endpoint exposes only aggregate request metrics (no row data). Keep it on a network the scraper can reach but the public cannot, e.g. by binding server.listen to a private interface.

When the binary was built without the metrics feature, enabled = true is harmless: the server logs a warning at startup and skips the endpoint.

Fields

enabled: bool

path: String

Trait Implementations

impl Clone for MetricsConfig

fn clone(&self) -> MetricsConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetricsConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MetricsConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetricsConfig

where MetricsConfig: Default,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.