eppo 5.2.1

Eppo SDK for Rust
Documentation 
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use std::{sync::Arc, time::Duration};

use eppo::AttributeValue;

pub fn main() -> eppo::Result<()> {
    // Configure env_logger to see Eppo SDK logs.
    env_logger::Builder::from_env(env_logger::Env::new().default_filter_or("eppo")).init();

    let api_key =
        std::env::var("EPPO_API_KEY").expect("EPPO_API_KEY env variable should contain API key");
    let mut client = eppo::ClientConfig::from_api_key(api_key)
        .assignment_logger(|event| {
            println!("Logging assignment event: {:?}", event);
        })
        .to_client();

    // Start a poller thread to fetch configuration from the server.
    let poller = client.start_poller_thread()?;

    // Block waiting for configuration. Until this call returns, the client will return None for all
    // assignments.
    if let Err(err) = poller.wait_for_configuration_timeout(Duration::from_secs(5)) {
        println!("error requesting configuration: {:?}", err);
    }

    // Get assignment for test-subject.
    let assignment_with_details = client.get_boolean_assignment_details(
        "a-boolean-flag",
        &"test-subject".into(),
        &Arc::new(
            [("name".into(), AttributeValue::from("<your name>"))]
                .into_iter()
                .collect(),
        ),
    );

    println!(
        "{}",
        serde_json::to_string_pretty(&assignment_with_details).unwrap()
    );

    Ok(())
}