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🌐 Internationalization (i18n)

Global enterprise applications require serving localized user interface strings and translated error messages based on the client's Accept-Language HTTP header.

ferrox-i18n provides multi-language translation dictionaries and locale resolution.

1. Dictionary Setup​

use ferrox_i18n::I18nManager;

let mut i18n = I18nManager::new("en");

// Register translations
i18n.add_translation("en", "welcome", "Welcome to Ferrox!");
i18n.add_translation("it", "welcome", "Benvenuto in Ferrox!");
i18n.add_translation("es", "welcome", "¡Bienvenido a Ferrox!");

2. Resolving Translations from HTTP Headers​

Extract locale from Axum request headers and translate message keys:

use axum::http::HeaderMap;

pub fn get_localized_greeting(headers: &HeaderMap, i18n: &I18nManager) -> String {
    let accept_lang = headers.get("Accept-Language")
        .and_then(|v| v.to_str().ok())
        .unwrap_or("en");

    let locale = i18n.resolve_locale(accept_lang);
    i18n.translate(locale, "welcome")
}