Lib.rs

Rust Prometheus utilities

A Rust crate adding helpful utilities on top of the prometheus crate, including:

• APIs to instrument futures with Prometheus metrics.
• APIs to ensure greater safety around gauges (through gaurds).
• Labeled metric APIs that apply some static checking to the labels.

lib.rs:

Utilities for working with Prometheus metrics in Rust

This crate builds on the Promtheus crate to provide API with additional safety guardrails:

• Use InstrumentedFuture to easily instrument futures with metric updates.
• Use GuardedGauge to work with gauges using an RAII-style guard that decrements the gauge upon drop.
• Use IntCounterWithLabels and IntGaugeWithLabels to produce labeled Prometheus metrics with a type-safe API.