json-gettext 3.2.7

A library for getting text from JSON usually for internationalization.
Documentation 
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#![feature(proc_macro_hygiene, decl_macro)]

#[macro_use]
extern crate rocket;

#[macro_use]
extern crate rocket_accept_language;

#[macro_use]
extern crate json_gettext;

use rocket::State;

use rocket_accept_language::unic_langid::subtags::Language;
use rocket_accept_language::AcceptLanguage;

use json_gettext::{JSONGetTextManager, Key};

const LANGUAGE_EN: Language = language!("en");

#[get("/")]
fn index(ctx: State<JSONGetTextManager>, accept_language: &AcceptLanguage) -> String {
    let language = accept_language.get_first_language().unwrap_or(LANGUAGE_EN);

    format!("Ron: {}", get_text!(ctx, Key(language), "hello").unwrap().as_str().unwrap())
}

fn main() {
    rocket::ignite()
        .attach(JSONGetTextManager::fairing(|| {
            static_json_gettext_build_for_rocket!(
                key!("en"),
                key!("en"),
                "langs/en_US.json",
                key!("zh"),
                "langs/zh_TW.json"
            )
        }))
        .mount("/", routes![index])
        .launch();
}