#metrics #prometheus

pomfrit

Prometheus metrics exporter with hot reload

9 releases

Uses new Rust 2021

0.1.8 Aug 2, 2022
0.1.7 Jun 13, 2022
0.1.6 Apr 3, 2022
0.1.5 Mar 18, 2022
0.1.0 Dec 10, 2021

#39 in #prometheus

Download history 41/week @ 2022-06-08 18/week @ 2022-06-15 13/week @ 2022-06-22 5/week @ 2022-06-29 17/week @ 2022-07-06 14/week @ 2022-07-13 34/week @ 2022-07-20 56/week @ 2022-07-27 57/week @ 2022-08-03 54/week @ 2022-08-10 31/week @ 2022-08-17 64/week @ 2022-08-24 32/week @ 2022-08-31 32/week @ 2022-09-07 33/week @ 2022-09-14 27/week @ 2022-09-21

129 downloads per month

Custom license

23KB
493 lines

pomfrit

Prometheus metrics exporter with hot reload

Example:

use pomfrit::formatter::*;

/// Your metrics as a struct
struct MyMetrics<'a> {
    ctx: &'a str,
    some_diff: u32,
    some_time: u32,
}

/// Describe how your metrics will be displayed
impl std::fmt::Display for MyMetrics<'_> {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        f.begin_metric("some_diff")
            .label("label1", self.ctx)
            .label("label2", "some value")
            .value(self.some_diff)?;

        f.begin_metric("some_time")
            .label("label1", self.ctx)
            .value(self.some_time)
    }
}

async fn my_app() {
    // Create inactive exporter
    let (exporter, writer) = pomfrit::create_exporter(None).await.unwrap();

    // Spawn task that will run in the background and write metrics
    writer.spawn(|buf| {
        buf.write(MyMetrics {
            ctx: "asd",
            some_diff: 123,
            some_time: 456,
        }).write(MyMetrics {
            ctx: "qwe",
            some_diff: 111,
            some_time: 444,
        });
    });

    // ...

    // Reload exporter config
    exporter.reload(Some(pomfrit::Config {
        collection_interval_sec: 10,
        ..Default::default()
    })).await.unwrap();
}

Why is it called pomfrit?

Pomfrit is fried potatoes. Something very simple and you order it in addition to the main course.

Dependencies

~0.5–7MB
~119K SLoC