i18n-express

const express = require('express'); const path = require('path'); const cookieParser = require('cookie-parser'); const session = require('express-session'); // Required for session-based language persistence const i18n = require('i18n-express'); const app = express(); // Create a dummy translations directory and files const translationsPath = path.join(__dirname, 'i18n-translations'); const fs = require('fs'); if (!fs.existsSync(translationsPath)) fs.mkdirSync(translationsPath); fs.writeFileSync(path.join(translationsPath, 'en.json'), JSON.stringify({ "WELCOME_MSG": "Hi! Welcome!" })); fs.writeFileSync(path.join(translationsPath, 'es.json'), JSON.stringify({ "WELCOME_MSG": "¡Hola! ¡Bienvenido!" })); app.set('views', path.join(__dirname, 'views')); app.set('view engine', 'ejs'); app.use(cookieParser()); app.use(session({ secret: process.env.SESSION_SECRET ?? 'supersecretkey', resave: false, saveUninitialized: true, cookie: { maxAge: 60000 } })); app.use(i18n({ translationsPath: translationsPath, // Path to your JSON translation files siteLangs: ["en", "es"], textsVarName: 'translation', // Variable name in views cookieLangName: 'ulang' // Cookie name for language persistence })); app.get('/', (req, res) => { res.render('index', { lang: res.locals.lang, translation: res.locals.translation }); }); // Dummy EJS view file (views/index.ejs) // Create 'views' directory and 'index.ejs' with this content: /* <div> <h1><%= translation.WELCOME_MSG %></h1> <p>Current Language: <%= lang %></p> <p> <a href="/?clang=en">English</a> | <a href="/?clang=es">Español</a> </p> </div> */ const PORT = 3000; app.listen(PORT, () => { console.log(`Server running on http://localhost:${PORT}`); console.log(`Try http://localhost:${PORT}/?clang=es to switch language`); });