Struct Metrics 

pub struct Metrics { /* private fields */ }

Request counters, latency histograms and an in-flight gauge, rendered in the Prometheus text format. Clone it: all clones share the numbers.

Implementations

impl Metrics

pub fn new() -> Self

pub fn observe( &self, method: &str, route: Option<&str>, status: u16, seconds: f64, )

Record one finished request

pub fn render(&self) -> String

Prometheus text exposition format

pub fn handler(&self) -> impl Handler

A handler serving render with the Prometheus content type

Trait Implementations

impl Clone for Metrics

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for Metrics

fn default() -> Self

Returns the “default value” for a type.

impl Middleware for Metrics

fn handle<'life0, 'async_trait>( &'life0 self, req: Request, next: Next, ) -> Pin<Box<dyn Future<Output = Result<Response>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,