sinan 0.1.0

A Boilerplate for Rapid Axum Web Service Deployment.
Documentation 
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use std::ops::{Deref, DerefMut};

use metrics_exporter_prometheus::{Matcher, PrometheusBuilder, PrometheusHandle};

use crate::contracts::{Application, Service};

pub struct Metrics(PrometheusHandle);

impl Service for Metrics {
    fn register<A: Application + ?Sized>() -> Self
    where
        Self: Sized,
    {
        const EXPONENTIAL_SECONDS: &[f64] = &[
            0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1.0, 2.5, 5.0, 10.0,
        ];

        let recorder = PrometheusBuilder::new()
            .set_buckets_for_metric(
                Matcher::Full("http_requests_duration_seconds".to_string()),
                EXPONENTIAL_SECONDS,
            )
            .unwrap()
            .install_recorder()
            .unwrap();

        Self(recorder)
    }
}

impl Deref for Metrics {
    type Target = PrometheusHandle;

    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

impl DerefMut for Metrics {
    fn deref_mut(&mut self) -> &mut Self::Target {
        &mut self.0
    }
}