armature-metrics

Prometheus metrics and monitoring for the Armature framework.

Features

• Prometheus Format - Standard metrics endpoint
• Auto Instrumentation - HTTP request metrics
• Custom Metrics - Counters, gauges, histograms
• Labels - Dimensional metrics
• Push Gateway - Push metrics to Prometheus

Installation

[dependencies]
armature-metrics = "0.1"

Quick Start

use armature_metrics::{Metrics, Counter, Histogram};

// Create metrics
let request_counter = Counter::new("http_requests_total", "Total HTTP requests");
let response_time = Histogram::new("http_response_time_seconds", "Response time");

// Record metrics
request_counter.inc();
response_time.observe(0.042);

// Expose /metrics endpoint
let app = Application::new()
    .with_middleware(MetricsMiddleware::new())
    .get("/metrics", metrics_handler());

Auto Instrumentation

let app = Application::new()
    .with_middleware(MetricsMiddleware::auto());

Automatically records:

• http_requests_total - Request count by method, path, status
• http_request_duration_seconds - Request duration histogram
• http_requests_in_flight - Current active requests

License

MIT OR Apache-2.0