apollo-configuration 0.4.0

A typed, friendly configuration system for Apollo products.
Documentation 
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use apollo_configuration::configuration;
use apollo_configuration::parse_yaml;
use apollo_configuration::types::Url;
use apollo_redaction::Redacted;

#[configuration]
struct RedactedStringConfig {
    #[config(required)]
    secret: Redacted<String>,
}

#[test]
fn redacted_string_parses() {
    let config: RedactedStringConfig =
        parse_yaml("secret: my-secret-value", &Default::default()).unwrap();

    assert_eq!(config.secret.unredact(), "my-secret-value");
    assert_eq!(config.secret.to_string(), "[REDACTED]");
}

#[configuration]
struct RedactedUrlConfig {
    #[config(required)]
    endpoint: Redacted<Url>,
}

#[test]
fn redacted_url_parses() {
    let config: RedactedUrlConfig =
        parse_yaml("endpoint: https://secret.example.com", &Default::default()).unwrap();

    assert_eq!(
        config.endpoint.unredact().as_str(),
        "https://secret.example.com/"
    );
    assert_eq!(config.endpoint.to_string(), "[REDACTED]");
}

#[test]
fn redacted_url_error_propagates() {
    let result = parse_yaml::<RedactedUrlConfig>("endpoint: '://invalid'", &Default::default());
    let err = result.expect_err("should fail to parse invalid URL");
    // Redacted intentionally doesn't leak the underlying error to avoid exposing sensitive values
    assert_eq!(
        format!("{err}"),
        "failed to parse value: failed to parse 'Url'"
    );
}