Trait relay_statsd::SetMetric

pub trait SetMetric {
    // Required method
    fn name(&self) -> &'static str;
}

A metric for capturing sets.

Sets count the number of unique elements in a group. You can use them to, for example, count the unique visitors to your site.

Example

use relay_statsd::{metric, SetMetric};

enum MySet {
    UniqueProjects,
    UniqueUsers,
}

impl SetMetric for MySet {
    fn name(&self) -> &'static str {
        match self {
            MySet::UniqueProjects => "unique_projects",
            MySet::UniqueUsers => "unique_users",
        }
    }
}

let users = HashSet::new();

// use a set metric
metric!(set(MySet::UniqueUsers) = users.len() as i64);

// use a set metric with tags
metric!(
    set(MySet::UniqueUsers) = users.len() as i64,
    server = "server1",
    host = "host1",
);

Required Methods

fn name(&self) -> &'static str

Returns the set metric name that will be sent to statsd.

Implementors