Tutorial Content for Developers

This makes the server send a keep-alive packet every 60 seconds, allowing up to 3 missed replies before disconnecting.

Restart SSH:

import React from 'react';
import { useTranslation } from 'react-i18next';
import { BrowserRouter, Routes, Route, useNavigate } from 'react-router-dom';
import { routes } from './routes';
import './i18n';

const LanguageSwitcher = () => {
  const { i18n } = useTranslation();
  const navigate = useNavigate();

  const switchLang = (lang) => {
    const currentPath = window.location.pathname;
    const currentPage = currentPath.split('/')[1];

    i18n.changeLanguage(lang).then(() => {
      // Re-map path using new language
      const t = i18n.getFixedT(lang);
      const mappedRoutes = {
        en: { accueil: 'home', 'a-propos': 'about-us' },
        fr: { home: 'accueil', 'about-us': 'a-propos' },
      };

      const newPath = `/${mappedRoutes[lang][currentPage] || ''}`;
      navigate(newPath);
    });
  };

  return (
    <div className="lang-switch">
      <button onClick={() => switchLang('en')}>EN</button>
      <button onClick={() => switchLang('fr')}>FR</button>
    </div>
  );
};

const App = () => {
  const { t } = useTranslation();

  return (
    <BrowserRouter>
      <LanguageSwitcher />
      <Routes>
        {routes(t).map((route, idx) => (
          <Route key={idx} path={route.path} element={route.element} />
        ))}
      </Routes>
    </BrowserRouter>
  );
};

export default App;

Create pages/Home.js:

Red = luck in China, danger in the West.

• Adapt units and metrics

resources: {
  en: {
    home: require('./locales/en/home.json'),
    dashboard: require('./locales/en/dashboard.json'),
  },
  fr: {
    home: require('./locales/fr/home.json'),
    dashboard: require('./locales/fr/dashboard.json'),
  },
},
ns: ['home', 'dashboard'],
defaultNS: 'home',

In component:

• Use SSR (Server-Side Rendering) for public pages
• Add <meta> tags and Open Graph data dynamically
• Ensure Lighthouse scores are optimized (especially for CLS, LCP)
• Avoid client-only routing for key landing pages

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