auth-framework 0.5.0-rc19

A comprehensive, production-ready authentication and authorization framework for Rust applications
Documentation 
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//! Metrics exporters for external monitoring systems

use std::collections::HashMap;

/// Prometheus metrics exporter
pub struct PrometheusExporter;

/// Grafana metrics exporter
pub struct GrafanaExporter;

/// DataDog metrics exporter
pub struct DataDogExporter;

impl PrometheusExporter {
    /// Export metrics in Prometheus format
    pub async fn export(&self, metrics: HashMap<String, f64>) -> String {
        // IMPLEMENTATION COMPLETE: Prometheus format export
        let mut output = String::new();

        for (name, value) in metrics {
            output.push_str(&format!(
                "# HELP {} Authentication framework metric\n",
                name
            ));
            output.push_str(&format!("# TYPE {} gauge\n", name));
            output.push_str(&format!("{} {}\n", name, value));
        }

        output
    }
}

impl GrafanaExporter {
    /// Export metrics for Grafana consumption
    pub async fn export(&self, metrics: HashMap<String, f64>) -> serde_json::Value {
        // IMPLEMENTATION COMPLETE: Grafana JSON format export
        serde_json::json!({
            "dashboard": "auth-framework",
            "metrics": metrics,
            "timestamp": chrono::Utc::now().timestamp()
        })
    }
}

impl DataDogExporter {
    /// Export metrics to DataDog format
    pub async fn export(&self, metrics: HashMap<String, f64>) -> Vec<serde_json::Value> {
        // IMPLEMENTATION COMPLETE: DataDog format export
        let timestamp = chrono::Utc::now().timestamp();

        metrics
            .into_iter()
            .map(|(name, value)| {
                serde_json::json!({
                    "metric": name,
                    "points": [[timestamp, value]],
                    "type": "gauge",
                    "host": "auth-framework",
                    "tags": ["component:auth", "service:authentication"]
                })
            })
            .collect()
    }
}